IGI INC
10-K, 1998-08-24
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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<PAGE>
 
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                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                               ----------------
 
                                   FORM 10-K
 
                 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D)
                    OF THE SECURITIES EXCHANGE ACT OF 1934
 
<TABLE>
<S>                                            <C>
            FOR FISCAL YEAR ENDED                           COMMISSION FILE NO.
            ---------------------                           -------------------
              DECEMBER 31, 1997                                  001-08568
</TABLE>
 
                                   IGI, INC.
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                            <C>
                  DELAWARE                                       01-0355758
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       (STATE OR OTHER JURISDICTION OF                        (I.R.S. EMPLOYER
       INCORPORATION OR ORGANIZATION)                        IDENTIFICATION NO.)
</TABLE>
 
<TABLE>
<S>                                            <C>
  WHEAT ROAD AND LINCOLN AVENUE, BUENA, NJ                         08310
- ---------------------------------------------                      -----
  (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                       (ZIP CODE)
</TABLE>
 
                                (609)-697-1441
                                  -----------
              REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:
 
                         Common Stock ($.01 par value)
                   Registered on the American Stock Exchange
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(G) OF THE ACT:
 
                                     None
 
  Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days.
 
                                Yes [_]  No [X]
 
  Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to
the best of the Registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. [_]
 
  The aggregate market value of the Registrant's Common Stock, par value $.01
per share, held by non-affiliates of the Registrant at July 31, 1998, as
computed by reference to the last trading price of such stock, was
approximately $16,600,000.
 
  The number of shares of the Registrant's Common Stock, par value $.01 per
share, outstanding at July 31, 1998 was 9,466,667 shares.
 
  DOCUMENTS INCORPORATED BY REFERENCE: None.
 
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<PAGE>
 
                                    PART I
 
ITEM 1. BUSINESS
 
  IGI, Inc. ("IGI" or the "Company") was incorporated in Delaware in 1977. Its
executive offices are at Wheat Road and Lincoln Avenue, Buena, New Jersey. The
Company is a diversified company engaged in two business segments:
 
  . Animal Health Business--production and marketing of animal health
    products such as poultry vaccines, veterinary pharmaceuticals and other
    products, including nutritional supplements and grooming aids; and
 
  . Consumer Products Business--production and marketing of cosmetics and
    skin care products.
 
  IGI is committed to grow by applying its technology to deliver cost
effective solutions to customer problems. IGI solves problems in poultry
production, pet care and consumer and skin care markets. An increasing number
of its solutions are based on the patented Novasome(R) microencapsulation
technology. Licensed from a former subsidiary, the technology offers value-
added qualities to cosmetics, skin care products, chemicals, biocides,
pesticides, fuels, vaccines, medicines, foods, beverages, pet care products
and other products.
 
IMPORTANT DEVELOPMENTS
 
  The Company has recently replaced a number of key personnel. On May 11,
1998, the Company employed Paul Woitach as its President and Chief Operating
Officer. On June 1, 1998, John F. Wall joined the Company as its Senior Vice
President and Chief Financial Officer. As of June 15, 1998, the Company has
hired a new Vice President of Vineland Operations, a new Vice President of
Vineland Research and Development, a new Vice President of International
Marketing and Sales and new Managers of Production and Quality Control. The
Company has also added managers with experience in materials and supply chain
management. Most of the new managers have experience in the poultry vaccine
industry. The Company has added these new employees without increasing its
historical overall payroll expenses.
 
  From June 4, 1997 through March 27, 1998, the Company was subject to an
order by the Center for Veterinary Biologics ("CVB") of the United States
Department of Agriculture ("USDA") to stop distribution and sale of certain
serials and subserials of designated poultry vaccines produced by the
Company's Vineland Laboratories Division ("Stop Shipment Order"). The Stop
Shipment Order was based on CVB's findings that the Company shipped serials
before the Animal and Plant Health Inspection Service division of the USDA
("APHIS") had the opportunity to confirm the Company's testing results, failed
to destroy serials reported to APHIS as destroyed, and in general failed to
keep complete and accurate records and to submit accurate reports to APHIS.
The Stop Shipment Order affected 36 of the Company's USDA-licensed vaccines.
In July 1997, the Office of Inspector General of the USDA ("OIG") advised the
Company of its commencement of an investigation into alleged violations of the
Virus Serum Toxin Act and alleged false statements made to APHIS.
 
  Following the Stop Shipment Order and the commencement of the OIG
investigation, in July 1997, the non-employee members of the Board of
Directors directed the Company to retain special counsel to investigate the
alleged violations and to advise the Board of Directors. The non-employee
members of the Board of Directors also instructed management to take immediate
action to assure that all future shipments comply with all regulatory
requirements. In addition, the Company took action designed to obtain the
approval of APHIS to the Company's resumption of shipments of the products
affected by the Stop Shipment Order, including submission of an amended
regulatory compliance program and testing procedures acceptable to the USDA,
reassignment of certain personnel and restructuring of the quality control and
quality assurance functions. (See "Management's Discussion and Analysis of
Financial Condition and Results of Operations--U.S. Government Investigation
and Disciplinary Proceedings.")
 
  Based on remedial action taken by the Company, including revised vaccine
production outlines, the USDA, during the period from August through December
of 1997, lifted the Stop Shipment Order with respect to all but three of the
36 affected products. As of March 27, 1998, the remaining three products were
released for sale and shipment by the Company.
 
                                       2
<PAGE>
 
  As a result of the Company's internal investigation regarding the alleged
violations, the Company, in November 1997, terminated the employment of its
then President and Chief Operating Officer, John P. Gallo, and commenced a
lawsuit against Mr. Gallo on April 21, 1998. On April 28, 1998, Mr. Gallo
commenced a lawsuit against the Company and two of its directors, including
the Chairman of the Board. (See "Legal Proceedings.") In addition, six
employees, including members of the Company's management team (including two
Vice Presidents of the Company) resigned in April 1998 at the request of the
Company. (See "Management's Discussion and Analysis of Financial Condition and
Results of Operations--U.S. Government Investigation and Disciplinary
Proceedings.")
 
  In April 1998, the Company voluntarily disclosed to the U.S. Attorney for
the District of New Jersey, as well as to the USDA and OIG, information
resulting from the Company's internal investigation. The U.S. Attorney
thereupon commenced its own investigation and requested that the Company
provide documents relating to the matters being investigated, including
documents relating to sales of poultry vaccines which may have violated U.S.
Customs laws and regulations.
 
  During 1997 and at December 31, 1997, the Company was in default under
certain covenants contained in its bank credit agreement. The Company entered
into an Extension Agreement with its bank lenders as of April 29, 1998 which
provided, among other matters, for the waiver of the covenant defaults, an
extension of the bank credit agreement through March 31, 1999, revisions of
existing covenants and the addition of new covenants, the payment of
additional fees and the issuance to the bank lenders of warrants to purchase
common stock of the Company. The Company was in default under certain
covenants contained in the Extension Agreement at July 31, 1998. On August 19,
1998, the Company and its bank lenders entered into a Forbearance Agreement
whereby the banks agreed to forbear from exercising their rights and remedies
arising from these covenant defaults through January 30, 1999. The Forbearance
Agreement terms require payment of all bank debt by January 31, 1999. The
Company is actively seeking alternative financing arrangements to replace its
existing debt and lending terms through a number of potential options
including, but not limited to, the issuance of debt or equity securities or a
combination of both. (See "Management's Discussion and Analysis of Financial
Condition and Results of Operations--Liquidity and Capital Resources.")
 
  On March 30, 1998, the Company announced that it was unable to file its
Annual Report on Form 10-K for the year ended December 31, 1997 (the "1997
Form 10-K") by the March 31, 1998 due date as it had not yet completed the
procedures it deemed necessary to prepare its financial statements. Based upon
information made known to it on March 17, 1998, the Company's Board of
Directors directed the special counsel, who was conducting the internal
investigation regarding USDA issues, to expand the scope of its internal
inquiry to investigate information which could have a material impact on the
Company's financial reporting for 1997 and prior periods and authorized
special counsel to engage independent accountants to assist it in the
investigation. As a result of the failure to file its 1997 Form 10-K, the
American Stock Exchange ("AMEX") suspended the trading of the Company's Common
Stock on March 30, 1998. In addition, on April 30, 1998, the Securities and
Exchange Commission ("SEC") notified the Company that it was conducting an
informal inquiry and requested that the Company provide it with certain
documents.
 
  On May 1, 1998, the Company was advised by its former independent
accountants, that based on the preliminary findings of the special
investigation initiated by the Board of Directors in March 1998, their reports
with respect to the Company's consolidated financial statements as of and for
the years ended December 31, 1995 and 1996 should no longer be relied upon. As
a result of the findings of the special investigation, the Company restated
its consolidated financial statements for the two years ended December 31,
1995 and 1996 and for the three quarters ended September 30, 1997. In the
opinion of management, all material adjustments necessary to correct the
financial statements have been recorded. The restatements resulted in
additional losses of $179,000 and $231,000 in 1995 and 1996, respectively. See
"Note 2 of Notes to Consolidated Financial Statements".
 
  In addition to the restatements discussed above, the Company made certain
adjustments in the fourth quarter of 1997 which were the result of actions or
events which occurred in earlier quarters of 1997. The Company has restated
its financial statements for the first three quarters of 1997 to record such
adjustments in the applicable quarter. The restatements resulted in an
additional loss of $1,324,000 for the nine months ended September 30, 1997.
See "Note 18 of Notes to Consolidated Financial Statements".
 
                                       3
<PAGE>
 
  For information relating to the impact of the above-described events on the
Company's operations during 1997 and the expected impact on its business in
1998, see "Management's Discussion and Analysis of Financial Condition and
Results of Operations."
 
LICENSE OF TECHNOLOGY FROM FORMER SUBSIDIARY
 
  In December 1995, IGI distributed its ownership of its majority-owned
subsidiary, Novavax, Inc. ("Novavax"), in the form of a tax-free stock
dividend, to IGI stockholders. Novavax had conducted the Biotechnology
Business segment of IGI, which is reported as a discontinued operation. In
connection with the distribution, the Company paid Novavax $5,000,000 in
return for a fully paid-up, ten-year license (the "IGI License Agreement")
entitling it to the exclusive use of Novavax's Novasome lipid vesicle
encapsulation technologies ("Novavax Technologies") in the fields of (i)
animal pharmaceuticals, biologicals and other animal health products; (ii)
foods, food applications, nutrients and flavorings; (iii) cosmetics, consumer
products and dermatological over-the-counter and prescription products
(excluding certain topically delivered hormones); (iv) fragrances; and (v)
chemicals, including herbicides, insecticides, pesticides, paints and
coatings, photographic chemicals and other specialty chemicals; and the
processes for making the same (collectively, the "IGI Field"). IGI has the
option, exercisable within the last year of the ten-year term, to extend the
exclusive license for an additional ten-year period for $1,000,000. Novavax
has retained the right to use its Novavax Technologies for all applications
outside the IGI Field, including human vaccines and pharmaceuticals.
 
BUSINESS SEGMENTS
 
  The following table sets forth the revenue and operating profit (in
thousands) of each of the Company's two business segments for the periods
indicated:
 
<TABLE>
<CAPTION>
                                                    1997     1996       1995
                                                   ------- ---------  ---------
   (IN THOUSANDS)                                          (RESTATED) (RESTATED)
   <S>                                             <C>     <C>        <C>
   REVENUE
   Animal Health Products......................... $29,096  $31,262    $28,869
   Consumer Products..............................   5,097    3,523      1,632
 
   OPERATING PROFIT (LOSS) *
   Animal Health Products.........................   4,139    6,882      6,247
   Consumer Products..............................     730     (917)      (233)
</TABLE>
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*  Excludes corporate expenses of $5,032,000, $4,097,000 and $3,056,000 for
   1997, 1996 and 1995, respectively. (See Note 17 of Notes to Consolidated
   Financial Statements).
 
ANIMAL HEALTH PRODUCTS BUSINESS
 
  IGI manufactures and markets a broad range of animal health products used in
pet care and poultry production. The Company sells these products in the
United States and over 50 other countries principally under two trade names:
Vineland Laboratories and EVSCO Pharmaceuticals. The Company also sells
veterinary products to the over-the-counter ("OTC") pet products market under
the Tomlyn label.
 
  Poultry Vaccines
 
  The Company produces and markets poultry vaccines manufactured by the chick
embryo, tissue culture and bacterial methods. The Company produces vaccines
for the prevention of various chicken and turkey diseases and has 63 vaccine
licenses granted by the United States Department of Agriculture ("USDA"). The
Company also produces and sells, under its Vineland Laboratories label,
nutritional, anti-infective and sanitation products used primarily by poultry
producers.
 
  The Company manufactures poultry vaccines at its USDA licensed facility in
Vineland, New Jersey and sells them, primarily through its own sales force of
nine persons, directly to large poultry producers and
 
                                       4
<PAGE>
 
distributors in the United States and, through its export sales staff of 15
persons, to local distributors in other countries. The sales force is
supplemented and supported by technical and customer service personnel. The
Company's vaccine production in the United States is regulated by the USDA.
Sales of poultry vaccines and related products accounted for approximately 49%
of the Company's sales in 1997, 57% in 1996 and 60% in 1995. For information
relating to the adverse effect on the Company's poultry vaccine business of
the Stop Shipment Order by the USDA in 1997, as well as ongoing governmental
investigations, see "Governmental Regulation" and "Management's Discussion and
Analysis of Financial Condition and Results of Operations."
 
  The Company's principal competitors in the poultry vaccine market are
Intervet America, Inc., Fort Dodge Animal Health, Inc., Merial Select
Laboratories, Inc. and Schering Plough Animal Health. The Company believes
that it is one of the largest domestic poultry vaccine producers. The Company
competes on the basis of product performance, price, customer service and
availability.
 
  Veterinary Products
 
  The EVSCO line of veterinary products is used by veterinarians in caring for
dogs and cats, and includes pharmaceuticals such as antibiotics, anti-
inflammatories and cardiac drugs, as well as nutritional supplements,
vitamins, insecticides and diagnostics. Product forms include gels, tablets,
creams, liquids, ointments, powders, emulsions, shampoos and diagnostic kits.
EVSCO also produces professional grooming aids for dogs and cats.
 
  EVSCO products are manufactured at the Company's facility in Buena, New
Jersey and sold through distributors to veterinarians. The facility operates
in accordance with Good Manufacturing Practices ("GMP") of the federal Food
and Drug Administration ("FDA") (see "Government Regulation"). Principal
competitors of the EVSCO product line include Solvay Veterinary, Inc., Vet-
Kem, a division of Sandoz Pharmaceuticals Corp., Schering Corp., Dermatologics
for Veterinary Medicine, Inc., Allerderm, Inc. and Mallinckrodt, Inc. The
Company competes on the basis of price, marketing, customer service and
product qualities.
 
  The Tomlyn product line includes pet grooming, nutritional and therapeutic
products, such as shampoos, grooming aids, vitamin and mineral supplements,
insecticides and OTC medications. The products are manufactured at the
Company's facility in Buena, New Jersey, and sold directly to pet superstores
and through distributors to independent merchandising chains, shops and
kennels.
 
  Sales of the Company's veterinary products are handled by 19 sales
employees. Sales of veterinary products accounted for approximately 36% of the
Company's sales in 1997, 33% in 1996 and 35% in 1995.
 
CONSUMER PRODUCTS BUSINESS
 
  IGI's Consumer Products segment is primarily focused on the expanded
commercialization of the Novavax Microencapsulation Technologies for skin care
applications. These efforts have been directed toward the development of high
quality skin care products that the Company markets through collaborative
arrangements with major cosmetic and consumer products companies. IGI is
currently working with several cosmetics, food, personal care products, and
OTC pharmaceutical companies for various commercial microencapsulation
applications of the Novavax Technologies. Because of their ability to
encapsulate skin protective agents, oils, moisturizers, shampoos,
conditioners, skin cleansers and fragrances and to provide both a controlled
and a sustained release of the encapsulated materials, Novasome lipid vesicles
are well-suited to cosmetics and consumer product applications. For example,
Novasome lipid vesicles may be used to deliver moisturizers and other active
ingredients to the deeper layers of the skin or hair follicles for a prolonged
period; to deliver or preserve ingredients which impart favorable cosmetic
characteristics described in the cosmetics industry as "feel,"
"substantivity," "texture" or "fragrance"; to deliver normally incompatible
ingredients in the same preparation, with one ingredient being shielded or
protected from the other by encapsulation within the Novasome vesicle; and to
deliver pharmaceutical agents.
 
  The Company produces Novasome vesicles for various skin care products,
including those marketed by Estee Lauder such as "All You Need", "Re-Nutriv",
"Virtual Skin", "100% Time Release Moisturizer", and "Resilience".
 
                                       5
<PAGE>
 
  At the end of December 1996, the Company entered into a license agreement
with Glaxo Wellcome ("Glaxo"), which grants Glaxo the exclusive right to
market a skin care product line in the United States to physicians, including
but not limited to dermatologists. Under the terms of the agreement, which was
amended in January 1997, IGI manufactures the products for Glaxo. IGI retains
the rights to market the product line to non-physicians in the U.S., and in
all markets abroad.
 
  In 1997, the Company entered into an Exclusive Supply Agreement with IMX
Pharmaceuticals, Inc. ("IMX"), which grants IMX the exclusive right to market
certain Novasome-based topical skin care products in certain mass
merchandising markets.
 
  Sales of the Company's Consumer Products were principally based on
formulations using the Novasome encapsulation technology. Such sales
approximated 15% of the Company's sales in 1997, 10% in 1996 and 5% in 1995.
 
OTHER APPLICATIONS
 
  The versatility of the Novavax Technologies combined with the Company's
commercial production capabilities allow the Company to target large, diverse
markets. Through product collaborations and license agreements, the Company is
seeking to develop additional products for this business segment. The efforts
for the development of additional products require extensive testing,
evaluation and trials, and therefore no assurance can be given that
commercialization of these products with Novasome vesicles will be successful.
 
  Under a license agreement with the Company, Johnson & Johnson has
encapsulated retinoids in Novasome vesicles. Retinoids are derivatives of
retinoic acid and are effective in the treatment of acne and thought to be
effective in the treatment of various age-associated skin disorders.
Encapsulation of retinoids in Novasome vesicles is designed to prolong
stability and reduce irritation and provide a sustained retinoid release to
treat these disorders. Johnson & Johnson is beginning to introduce Novasome
encapsulated retinoid products in certain European countries and the United
States in the first half of 1998.
 
INTERNATIONAL SALES AND OPERATIONS
 
  A staff of nine persons based in Buena, New Jersey and six individuals based
overseas handle all sales of Company products outside the United States. The
Company's sales personnel and veterinarians travel abroad extensively to
develop business and support customers through local distributors. Exports
consist primarily of poultry vaccines, although the Company also exports some
veterinary pharmaceuticals and pet care products. Exports of vaccines require
product registration (ie. licenses) by foreign authorities. The Company has
approximately 900 product registrations in over 50 countries outside the
United States and has over 800 registrations pending. The Company anticipates
future growth in key markets including Brazil, China and Japan. The Company
entered the market in China in 1997 and expects to increase market penetration
in 1998. The Company has received product registrations in Japan and is
scaling up production for 1998 product sales. In Brazil, product registrations
are in process and the Company expects to commence sales by the fourth quarter
of 1998.
 
  Mexico and certain Latin American countries are important markets for the
Company's poultry vaccines and other products. These countries have
historically experienced varying degrees of political unrest and economic and
currency instability. In addition, certain countries in the Far East,
including Indonesia and Thailand, have recently experienced economic and
currency instability. Because of the volume of business transacted by the
Company in these areas, continuation or the recurrence of such unrest or
instability could adversely affect the businesses of its customers, which in
either case could adversely impact the Company's future operating results.
(See "Management's Discussion and Analysis of Financial Condition and Results
of Operations--Liquidity and Capital Resources.")
 
  Sales to international customers represented 35% of the Company's sales in
1997, 39% in 1996 and 38% in 1995. (See Note 14 of Notes to Consolidated
Financial Statements.)
 
                                       6
<PAGE>
 
MANUFACTURING
 
  The Company's manufacturing operations include production and testing of
vaccines, lotions, emulsions, shampoos, gels, ointments, pills and powders;
packaging, bottling and labeling of the finished products; and packing and
shipment for distribution. Approximately 90 employees are engaged in
manufacturing operations. The raw materials included in these products are
available from several suppliers. The Company produces quantities of Novasome
lipid vesicles adequate to meet its current needs for cosmetics, consumer
product and animal health applications.
 
RESEARCH AND DEVELOPMENT
 
  The Company's poultry vaccine research and development efforts are directed
towards developing more efficient single and multiple-component vaccines,
developing vaccines to combat new diseases and incorporating the Novasome
lipid vesicle technology into existing vaccines. The Company is concentrating
its veterinary pharmaceutical development efforts on the use of Novasome lipid
vesicle technology for various veterinary pharmaceutical and OTC pet care
products. The Company's consumer products development efforts are directed
towards liposomal encapsulation to improve performance and efficacy of
chemicals, fuels, pesticides, biocides cosmetics, consumer products, flavors
and dermatologic products. Under its license agreement with Novavax, the
Company has the right to continue to use the Novavax Technologies to develop
new products in the IGI Field.
 
  In addition to its internal research and development efforts, which involve
11 employees, the Company encourages the development of products in areas
related to its present lines by making specific grants to universities and by
entering into research and development agreements with industry partners.
Research expenses for IGI's continuing operations were $1,675,000, $2,013,000
and $1,345,000 in 1997, 1996 and 1995, respectively.
 
PATENTS AND TRADEMARKS
 
  All of the names of the Company's major products are registered in the
United States and all significant markets in which the Company sells its
products. Under the terms of the 1995 License Agreement, IGI has an exclusive
ten-year license to use the Novavax Technologies in the IGI Field. Novavax
holds 44 U.S. patents and a number of foreign patents covering its Novavax
Technologies (including a wide variety of component materials, its continuous
flow vesicle production process and its Novamix(TM) production equipment).
 
GOVERNMENT REGULATION
 
  The production and marketing of the Company's products and its research and
development activities are subject to regulation for safety, efficacy and
quality by numerous governmental authorities in the United States and other
countries. The Company's development, manufacturing and marketing of poultry
biologics are subject to regulation in the United States for safety and
efficacy by the USDA, including the Center for Veterinary Biologics ("CVB"),
in accordance with the Virus Serum Toxin Act of 1914. The development,
manufacturing and marketing of pharmaceuticals are subject to regulation in
the United States for safety and efficacy by the FDA in accordance with the
Food, Drug and Cosmetic Act.
 
  From June 4, 1997 through March 27, 1998, the Company was subject to an
order by the CVB to stop distribution and sale of certain serials and
subserials of designated poultry vaccines produced by the Company's Vineland
Laboratories Division. In July 1997, the OIG advised the Company of its
commencement of an investigation into alleged violations of the Virus Serum
Toxin Act and alleged false statements made by certain former Company
personnel. In April 1998, the Company voluntarily disclosed to the U.S.
Attorney for the District of New Jersey, as well as to the USDA and the OIG,
information resulting from the Company's internal investigation of alleged
violations by certain officers and employees of USDA rules and regulations and
of the Virus Serum Toxin Act. (See "Management's Discussion and Analysis of
Financial Condition and Results of Operations--U.S. Government Investigation
and Disciplinary Proceedings.")
 
                                       7
<PAGE>
 
  On March 6, 1998, the Food and Drug Administration concluded an inspection
of the Company's EVSCO facility in Buena, New Jersey. This resulted in the
issuance of a form FDA-483 listing several "inspection observations". The FDA
reemphasized its observations on May 14, 1998 with a "Warning Letter". The
Company responded in a timely fashion to the Form-483 and to the Warning
Letter, and has been advised by the FDA compliance branch that the Company's
corrective action plan appears to address its concerns.
 
  In the United States, pharmaceuticals and human vaccines are subject to
rigorous FDA regulation including preclinical and clinical testing. The
process of completing clinical trials and obtaining FDA approvals for a new
drug is likely to take a number of years, requires the expenditure of
substantial resources and is often subject to unanticipated delays. There can
be no assurance that any product will receive such approval on a timely basis,
if at all.
 
  In addition to product approval, the Company may be required to obtain a
satisfactory inspection by the FDA covering the manufacturing facilities
before a product can be marketed in the United States. The FDA will review the
manufacturing procedures and inspect the facilities and equipment for
compliance with applicable rules and regulations. Any material change by the
Company in the manufacturing process, equipment or location would necessitate
additional review and approval.
 
  Whether or not FDA approval has been obtained, approval of a pharmaceutical
product by comparable governmental authorities in foreign countries must be
obtained prior to the commencement of clinical trials and subsequent marketing
of such product in such countries. The approval procedure varies from country
to country, and the time required may be longer or shorter than that for FDA
approval. Although there are some procedures for unified filing for certain
European countries, in general each country has its own procedures and
requirements.
 
  In addition to regulations enforced by the USDA and the FDA, the Company
also is subject to regulation under the Occupational Safety and Health Act,
the Environmental Protection Act, the Toxic Substances Control Act, the
Resource Conservation and Recovery Act and other present and potential future
federal, state or local regulations. The Company's research and development
involves the controlled use of hazardous materials, chemicals, viruses and
bacteria. Although the Company believes that its safety procedures for
handling and disposing of such materials comply with the standards prescribed
by state and federal regulations, the risk of accidental contamination or
injury from these materials cannot be completely eliminated. In the event of
such an accident, the Company could be held liable for any damages that result
and any such liability could exceed the resources of the Company.
 
EMPLOYEES
 
  At June 30, 1998, the Company had 198 full-time employees, of whom 72 are in
marketing, sales, distribution and customer support, 90 in manufacturing, 11
in research and development, and 25 in executive, human resources, facilities,
information systems, finance and administration. The Company has no collective
bargaining agreement with its employees, and believes that its employee
relations are good.
 
ITEM 2. PROPERTIES
 
  The Company owns land and buildings housing offices, laboratories and
production facilities in four locations in New Jersey. The Company also owns a
warehouse and sales office space in Gainesville, Georgia. In addition, the
Company leases warehouses in New Jersey, California, Mississippi, and
Arkansas.
 
  The Company's poultry vaccine production facilities are located in Vineland,
New Jersey, where the Company owns several buildings situated on approximately
16 acres of land. These buildings, containing 90,000 square feet of usable
floor space, house offices and facilities used for the production of poultry
vaccines. They were constructed and expanded from time to time between 1935
and 1992. The Company intends to renovate certain of these facilities in the
future to expand its vaccine production capacity to meet expected growth in
existing poultry vaccines and to provide production of new vaccines. Financing
for such renovations will be provided by internally generated funds or leases.
 
                                       8
<PAGE>
 
  In Buena, New Jersey, the Company owns a facility used for the production of
veterinary pharmaceuticals. The facility was built in 1971 and expanded in
1975. The facility presently contains 41,200 square feet of usable floor space
and is situated on eight acres of land. The Company's executive and
administrative offices are also located in Buena, New Jersey in a 10,000
square foot building situated on six acres of land. In 1995, the Company
completed and began operating a 25,000 square foot production, research and
product development, customer service, marketing, international operations and
warehousing facility for cosmetic, dermatologic and personal care products on
this site.
 
  Each of the properties owned by the Company is subject to a mortgage held by
Fleet Bank-NH and Mellon Bank. Except as discussed above, the Company believes
that its current production and office facilities are adequate for its present
and forseeable future needs.
 
ITEM 3. LEGAL PROCEEDINGS
 
  In July 1997, the Office of Inspector General of the USDA ("OIG") advised
the Company of its commencement of an investigation into alleged violations of
the Virus Serum Toxin Act and alleged false statements made by Company
employees to the USDA. The Company is cooperating with the OIG and providing
documents subpoenaed by the OIG concerning certain products. The OIG
investigation is ongoing and the Company is unable to determine when it will
be completed. In April 1998, the Company voluntarily disclosed to the U.S.
Attorney for the District of New Jersey, as well as to the USDA and OIG,
information resulting from the Company's internal investigation. The U.S.
Attorney thereupon commenced its own investigation and requested that the
Company provide documents relating to the matters being investigated,
including documents relating to sales of poultry vaccines which may have
violated U.S. Customs laws and regulations. In addition, on April 30, 1998,
the SEC notified the Company that it is conducting an informal inquiry and has
requested that the Company provide it with certain documents. The Company is
cooperating fully with the U.S. Attorney and each of the regulatory agencies
and has produced a substantial amount of documents and information requested
by them. The U.S. Attorney has not indicated what course of action, if any, it
may pursue with respect to IGI in light of the Company's extensive
cooperation. Although there can be no assurance as to the outcome of any
proceeding, the Company expects that it will be able to achieve a satisfactory
resolution of its existing regulatory and litigation matters. However, if the
OIG, U.S. Attorney or SEC conclude that the Company's actions warrant
enforcement proceedings, those proceedings, as well as the costs and expenses
related to them, could have a materially adverse effect on the Company's
business, financial condition and results of operations. See "Management's
Discussion and Analysis of Financial Condition and Results of Operations."
 
  On April 21, 1998, the Company commenced a lawsuit against its former
President and Chief Operating Officer, John P. Gallo, in the Superior Court of
New Jersey, Atlantic County. In its complaint, the Company alleges, among
other matters, that Mr. Gallo caused the Company to violate Department of
Agriculture statutes and regulations, made false and inaccurate
representations with respect to shipments and inventory, improperly converted
Company funds and assets for his personal benefit and knowingly engaged in
misconduct in the performance of his duties and responsibilities, all in
violation of his employment agreement and of his fiduciary duty to the
Company. The Company is seeking recovery of damages resulting from Mr. Gallo's
alleged misconduct and recovery of funds and assets that the Company alleges
were improperly diverted by him.
 
  On April 28, 1998, Mr. Gallo commenced a lawsuit against the Company and two
of its Directors, including the Company's Chairman of the Board, Dr. Edward B.
Hager, alleging, among other matters, that they improperly caused the
termination of his employment with the Company in November 1997, wrongfully
terminated his compensation in violation of his employment agreement and
defamed his reputation. Mr. Gallo is seeking recovery against the defendants
for his alleged actual damages as well as consequential and punitive damages.
The Company has denied Mr. Gallo's allegations and believes his claims are
without merit. The Company therefore has not reserved any amounts related to
these charges.
 
  On May 27, 1998, Mr. Gallo sent a letter to the Company's Directors
containing a number of complaints and allegations and demanded that the Board
of Directors commence litigation against certain of its officers and
 
                                       9
<PAGE>
 
Directors. The Board of Directors convened a special meeting and designated a
committee of independent members consisting of F. Steven Berg Esq. (Chairman)
and Terrence O'Donnell Esq. to investigate these allegations and report to the
Board. Also, the Board authorized the engagement of counsel to help with its
investigation and requested that Mr. Gallo provide information and support for
his allegations. The Company has been advised that Mr. Gallo has declined to
provide the Board with a sworn statement giving substance and detail to his
complaints. The Committee and its counsel are continuing to investigate Mr.
Gallo's allegations and will report their findings and recommendations to the
Board of Directors. To this point in the investigation, the Committee has
uncovered no evidence supporting the claims of Mr. Gallo.
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
  No matters were submitted to a vote of the Company's stockholders during the
last quarter of 1997.
 
EXECUTIVE OFFICERS OF THE COMPANY
 
  The following table sets forth (i) the name and age of each executive
officer of the Company as of July 31, 1998, (ii) the position with the Company
held by each such executive officer and (iii) the principal occupation held by
each executive officer for at least the past five years.
 
<TABLE>
<CAPTION>
                             OFFICER PRINCIPAL OCCUPATION AND OTHER BUSINESS EXPERIENCE
          NAME           AGE  SINCE                DURING PAST FIVE YEARS
          ----           --- ------- --------------------------------------------------
<S>                      <C> <C>     <C>
Kevin J. Bratton........ 49   1983      Vice President and Treasurer of IGI, Inc.
                                        since 1983.
 
Edward B. Hager, M.D.... 67   1977      Chairman of the Board of Directors and
                                        Chief Executive Officer of IGI, Inc. since
                                        1977; Chairman of the Board of Directors
                                        and Chief Executive Officer of Novavax,
                                        Inc. from 1987 to June 1996; Chairman of
                                        the Board of Directors of Novavax, Inc.
                                        from February 1997 to March 1998.
 
John F. Wall............ 50   1998      Senior Vice President and Chief Financial
                                        Officer of IGI, Inc. since June 1998; Chief
                                        Financial Officer of Diversa Corp. (startup
                                        biotechnology company developing enzymes
                                        for pharmaceuticals and chemicals) from
                                        July 1995 to September 1997; and Chief
                                        Financial Officer and a Co-founder of
                                        GynoPharma, Inc. (womens' health care
                                        manufacturer) from October 1987 to July
                                        1995.
 
Paul Woitach............ 40   1998      President and Chief Operating Officer of
                                        IGI, Inc. since May 1998; General Manager,
                                        Laboratory Division of Mettler Toledo North
                                        America (weighing and measurement systems)
                                        from 1997 to 1998; Vice President,
                                        Marketing and Sales, Balances and
                                        Instrument Division of Mettler Toledo
                                        International from 1996 to 1997; Vice
                                        President and Executive Director from 1995
                                        to 1996, and Director of Marketing Channels
                                        from 1993 to 1995 of the Health Imaging
                                        Division of Eastman Kodak Company
                                        (diagnostic imaging).
</TABLE>
 
  Officers are elected on an annual basis and serve at the discretion of the
Board of Directors, except Dr. Hager, who has an employment agreement with the
Company. Messrs. Wall and Woitach have finalized arrangements on the basic
terms of their employment with the Company that have not been formalized into
a final document. (See "Item 11. Executive Compensation--Employment
Agreements".)
 
                                      10
<PAGE>
 
                                    PART II
 
ITEM 5. MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER
MATTERS
 
  The Company has never paid cash dividends on its Common Stock. The payment
of dividends is prohibited by the Company's Loan Agreement with Fleet Bank-NH
and Mellon Bank, N.A. without prior consent of the lenders. See "Item 7,
Management's Discussion and Analysis of Financial Condition and Results of
Operations-Liquidity and Capital Resources."
 
  The principal market for the Company's Common Stock ($.01 par value) (the
"Common Stock") is the American Stock Exchange ("AMEX") (symbol: "IG"). The
following table shows the range of high and low sale prices on the AMEX for
the periods indicated.
 
<TABLE>
<CAPTION>
                                                                   HIGH    LOW
                                                                   ----    ---
   <S>                                                             <C>     <C>
   1996
   First quarter.................................................. $8 1/4  $6 3/8
   Second quarter.................................................  9 1/2   6 1/4
   Third quarter..................................................  7 3/4    5
   Fourth quarter.................................................   6      5 1/8
 
   1997
   First quarter.................................................. $7 3/8  $ 5
   Second quarter.................................................  5 1/2    4
   Third quarter..................................................  5 1/2   3 7/8
   Fourth quarter.................................................  5 1/8   3 5/8
</TABLE>
 
  On March 30, 1998, the AMEX suspended the trading of the Company's common
stock as a result of the Company's announcement that it would not be able to
file its 1997 Annual Report on Form 10-K with the AMEX and the Securities and
Exchange Commission by March 31, 1998, the due date of that report. The
approximate number of holders of record of the Company's common stock at June
30, 1998 was 897 (not including stockholders for whom shares are held in a
"nominee" or "street" name).
 
                                      11
<PAGE>
 
ITEM 6. SELECTED FINANCIAL DATA
 
  Five-Year Summary of Selected Financial Data (in thousands, except per share
information)
 
<TABLE>
<CAPTION>
                                         YEAR ENDED DECEMBER 31,
                               -----------------------------------------------
                                1997       1996      1995      1994     1993
                               -------  ---------- ---------  -------  -------
                                        (RESTATED) (RESTATED)
<S>                            <C>      <C>        <C>        <C>      <C>
INCOME STATEMENT DATA:
Net sales....................  $34,193   $34,785    $30,501   $28,948  $28,005
Gross profit.................   16,359    18,204     15,213    15,013   14,839
Operating profit (loss)......     (163)    1,868      2,958     3,508    3,386
Income (loss) from continuing
 operations..................   (1,453)     (138)     1,329     1,969    1,765
Loss from discontinued opera-
 tions*......................      --        --      (4,034)   (1,700)  (5,943)
Net income (loss)............   (1,453)     (138)    (2,705)      269   (4,178)
Income (loss) per share-ba-
 sic:
  From continuing operations.  $  (.15)  $  (.01)   $   .14   $   .22  $   .20
  From discontinued opera-
   tions.....................      --        --        (.44)     (.19)    (.69)
  Net income (loss)..........     (.15)     (.01)      (.29)      .03     (.48)
Income (loss) per share-di-
 luted:
  From continuing operations.     (.15)     (.01)       .14       .22      .20
  From discontinued opera-
   tions.....................      --        --        (.41)     (.19)    (.66)
  Net income (loss)..........     (.15)     (.01)      (.28)      .03     (.46)
Cash dividends on common
 stock.......................      --        --         --        --       --
<CAPTION>
                                               DECEMBER 31,
                               -----------------------------------------------
                                1997       1996      1995      1994     1993
                               -------  ---------- ---------  -------  -------
                                        (RESTATED) (RESTATED)
<S>                            <C>      <C>        <C>        <C>      <C>
BALANCE SHEET DATA:
Working capital (deficit)....  $(4,469)  $ 3,343    $ 4,139   $10,671  $12,411
Total assets.................   34,044    34,384     32,152    30,502   26,005
Short-term debt..............   18,857    13,085     10,463     3,819    2,530
Long-term debt (excluding
 current maturities).........       36     6,893      9,624    10,019    8,798
Stockholders' equity.........    8,283     9,558      8,369    13,711   12,321
Average number of common and
 common equivalent shares
  Basic......................    9,458     9,323      9,173     8,804    8,668
  Diluted....................    9,458     9,323      9,725     9,155    9,049
</TABLE>
- --------
*  In March 1994, IGI's Board of Directors voted to dispose of its
   Biotechnology Business segment through the combination of certain majority-
   owned subsidiaries and the subsequent tax-free distribution of its
   ownership of the combined entity to IGI's shareholders. The distribution of
   this segment occurred on December 12, 1995. The Consolidated Financial
   Statements of IGI present this segment as a discontinued operation. (See
   Note 3 of Notes to Consolidated Financial Statements.)
 
                                      12
<PAGE>
 
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
RESULTS OF OPERATIONS
 
U.S. GOVERNMENT INVESTIGATION AND DISCIPLINARY PROCEEDINGS
 
  From June 4, 1997 through March 27, 1998, the Company was subject to an
order by the CVB to stop distribution and sale of certain serials and
subserials of designated poultry vaccines produced by the Company's Vineland
Laboratories Division ("Stop Shipment Order"). The Stop Shipment Order was
based on CVB's findings that the Company shipped serials before the Animal and
Plant Health Inspection Service division of the USDA ("APHIS") had the
opportunity to confirm the Company's testing results, failed to destroy
serials reported to APHIS as destroyed, and in general failed to keep complete
and accurate records and to submit accurate reports to APHIS. The Stop
Shipment Order affected 36 of the Company's USDA-licensed vaccines. In July
1997, the Office of Inspector General of the USDA ("OIG") advised the Company
of its commencement of an investigation into alleged violations of the Virus
Serum Toxin Act and alleged false statements made to APHIS.
 
  Because of the Stop Shipment Order and the commencement of the OIG
investigation, the non-employee members of the Board of Directors instructed
management to take immediate action to assure that all future shipments comply
with all regulatory requirements. In July 1997, the non-employee members of
the Board of Directors directed the Company to retain special counsel to
investigate the alleged violations and to advise the Board of Directors of its
findings. In addition, the Company took action designed to obtain the approval
of APHIS to the Company's resumption of shipments of the products affected by
the Stop Shipment Order, including submission of an amended regulatory
compliance program and testing procedures acceptable to the USDA, reassignment
of certain personnel and restructuring of the quality control and quality
assurance functions.
 
  Based on remedial action taken by the Company, including revised vaccine
production outlines, the USDA, during the period from August through December
of 1997, lifted the Stop Shipment Order with respect to all but three of the
36 affected products. As of March 27, 1998, the remaining three products were
released for sale and shipment by the Company.
 
  Company Actions
 
  As a result of the Company's internal investigation, in November 1997 the
Company terminated the employment of its President and Chief Operating
Officer, John P. Gallo, for willful misconduct in the performance of his
executive duties, and on April 21, 1998, the Company commenced a lawsuit
against Mr. Gallo (see "Legal Proceedings"). In addition, six employees,
including members of the Company's management team (including two Vice
Presidents of the Company), resigned in April 1998 at the request of the
Company. However, five of these former employees were retained by the Company
for approximately eight weeks to enable the Company to continue its operations
pending the hiring and training of qualified replacements. In connection with
the employee terminations, the Company agreed to make severance payments to
the two non-management employees equal to four months salary.
 
  The Company has recently replaced a number of key personnel. On May 11,
1998, the Company employed Paul Woitach as its President and Chief Operating
Officer. On June 1, 1998, John F. Wall joined the Company as its Senior Vice
President and Chief Financial Officer. As of June 15, 1998, the Company has
hired a new Vice President of Vineland Operations, a new Vice President of
Vineland Research and Development, a new Vice President of International
Marketing and Sales, and new Managers of Production and Quality Control. The
Company has also added managers with experience in materials and supply chain
management. Most of the new managers have experience in the poultry vaccine
industry. The Company has added these new employees without increasing its
historical overall payroll expenses.
 
  Ongoing Government Investigations
 
  In April 1998, the Company voluntarily disclosed to the U.S. Attorney for
the District of New Jersey, as well as to the USDA and OIG, information
resulting from its internal investigation of alleged violations by
 
                                      13
<PAGE>
 
certain former officers and employees of USDA rules and regulations and of the
Virus Serum Toxin Act and other statutes including U.S. Customs laws and
regulations. In connection with its investigation, the OIG has subpoenaed
Company documents and the Company has provided, and will continue to provide,
subpoenaed documents to Governmental authorities. The U.S. Government's
investigation is ongoing and could be expanded to other areas of the Company's
business in which violations of laws and regulations may be found to have
occurred. In addition, the Government's ongoing investigation could result in
action against the Company and certain of its former employees, including
fines and the possibility of criminal charges. Also, on April 30, 1998, the
SEC advised the Company that it is conducting an informal inquiry and
requested that the Company provide it with certain documents.
 
  Effects of Stop Shipment Order and Investigations
 
  The Stop Shipment Order adversely affected the Company's results of
operations for 1997, and the delay in approval of the remaining affected
products until the end of March 1998 will adversely affect overall sales
revenue in 1998. In addition, although the Company, on May 11, 1998, announced
the employment of a new President and Chief Operating Officer, it needs to
replace and train certain key managers and other employees who have terminated
their employment at the request of the Company, which will have a materially
adverse effect on the Company's 1998 performance and operating results. Also,
if the OIG, the U.S. Attorney or the SEC concludes that the Company's actions
warrant enforcement proceedings, those proceedings, as well as the costs and
expenses related to them, could have a materially adverse effect on the
Company's business, financial condition and results of operations. Although
there can be no assurance as to the outcome of any proceeding, the Company
expects that it will be able to achieve a satisfactory resolution of its
existing regulatory and litigation matters.
 
RESTATEMENT OF PRIOR PERIODS
 
  On March 27, 1998, the Board of Directors engaged special counsel to
investigate information first made known to it on March 17, 1998 which it
believed could have a material impact on the Company's financial reporting for
1997 and prior periods. The special counsel was authorized to engage
independent accountants to assist it in the investigation.
 
   As a result of the findings of the special investigation initiated by the
Board of Directors in March 1998, the Company restated its consolidated
financial statements for 1995 and 1996. In the opinion of management, all
material adjustments necessary to correct the financial statements have been
recorded. The restatements amounted to additional losses of $179,000 and
$231,000 in 1995 and 1996, respectively. See "Note 2 of Notes to Consolidated
Financial Statements".
 
  In addition to the restatements discussed above, the Company made certain
adjustments in the fourth quarter of 1997 which were the result of actions or
events which occurred in earlier quarters of 1997. The Company has restated
its financial statements for the first three quarters of 1997 to record such
adjustments in the applicable quarter. See "Note 18 of Notes to Consolidated
Financial Statements".
 
  The restatements reflect inventory write-offs and inventory adjustments
which should have been recorded in different periods. Also reflected are
changes in the time periods in which certain product shipments were recognized
as sales.
 
                                      14
<PAGE>
 
  A summary of the impact of such restatements on the financial statements for
the years ended December 31, 1995 and 1996 is as follows:
 
<TABLE>
<CAPTION>
                                              YEAR ENDED DECEMBER 31,
                                     ------------------------------------------
                                             1996                  1995
                                     --------------------  --------------------
(IN THOUSANDS, EXCEPT PER SHARE
INFORMATION)                         AS REPORTED RESTATED  AS REPORTED RESTATED
<S>                                  <C>         <C>       <C>         <C>
Net sales..........................    $35,140   $34,785     $31,221   $30,501
Income (loss) from continuing oper-
 ations............................         93      (138)      1,508     1,329
Net income (loss)..................         93      (138)     (2,526)   (2,705)
Income (loss) per common and common
 equivalent share:
  Basic:
    From continuing operations.....    $   .01   $  (.01)    $   .16   $   .14
    Net income (loss)..............    $   .01   $  (.01)    $  (.28)  $  (.29)
  Diluted:
    From continuing operations.....    $   .01   $  (.01)    $   .16   $   .14
    Net income (loss)..............    $   .01   $  (.01)    $  (.26)  $  (.28)
</TABLE>
 
  See Note 18 of the Notes to the Consolidated Financial Statements for
discussion of the impact of the restatements on each of the three quarters in
the nine months ended September 30, 1997.
 
RESULTS OF OPERATIONS
 
  1997 Compared to 1996
 
  The Stop Shipment Order had a material adverse effect on the Company's
operations in 1997. Total sales decreased $592,000, or 2%, from $34,785,000 in
1996 to $34,193,000 in 1997. Sales of Animal Health Products in 1997 decreased
7% to $29,096,000, or 85% of total sales, compared with $31,262,000, or 90% of
1996 total sales. Sales of poultry vaccines decreased by $3,301,000, or 17%,
to $16,652,000, or 49% of the Company's total sales, compared with
$19,953,000, or 57% of 1996 total sales. This decrease was offset in part by
an increase of $1,135,000, or 10%, in sales of companion pet products to
$12,444,000, or 36% of the Company's total sales in 1997, compared with
$11,309,000, or 33% of total 1996 sales. International sales of Animal Health
Products decreased by $2,115,000, or 15%, to $11,841,000 in 1997 from
$13,956,000 in 1996. International sales represented 35% of the Company's
total sales in 1997 compared with 40% of total sales in 1996.
 
  Sales of Consumer Products increased $1,574,000, or 45%, in 1997 to
$5,097,000 from $3,523,000 in 1996. Sales of Consumer Products represented 15%
of the Company's total 1997 sales, up from 10% of total 1996 sales. This
increase was due primarily to increased product sales to Glaxo Wellcome and
Kimberly Clark. Revenues from Glaxo increased by over $1,000,000 in 1997.
 
  Gross profit decreased $1,845,000, or 10%, in 1997. As a percentage of
sales, gross profit was 48% in 1997 compared with 52% in 1996 due primarily to
(1) manufacturing variances; (2) inventory write-offs; (3) a less favorable
product sales mix at the Vineland Laboratories division due to the USDA
action; and (4) product sales to Glaxo which were made at cost plus a royalty
on Glaxo's sales which results in lower gross profit percentage than other
consumer product sales.
 
  Selling, general and administrative expenses were 44% of sales in 1997
compared with 42% of sales in 1996. Although the Company decreased selling and
marketing expenses as a result of the license and supply agreement with Glaxo
("Glaxo Agreement"), total selling, general and administrative expenses
increased $512,000 in 1997 due to additional reserves for accounts receivable,
and legal and related expenses incurred in connection with the Company's and
the USDA and OIG investigations.
 
  Research and development expenses decreased $338,000, or 17%, in 1997 as the
Company curtailed certain development projects primarily in the Consumer
Products segment. The Company intends to seek industry partners to fund such
research efforts.
 
                                      15
<PAGE>
 
  Licensing and research revenue of $150,000 in 1997 represents $100,000 of
licensing income from Kimberly Clark and $50,000 of revenue attributable to an
agreement entered into on September 30, 1997 between the Company and IMX
Pharmaceuticals, Inc. ("IMX"), which grants IMX the exclusive right to market
certain Novasome-based topical skin care products in certain mass
merchandising markets. Pursuant to this agreement, the Company received
271,714 shares of restricted common stock of IMX. The total investment in IMX
stock is valued at $951,000 at December 31, 1997. Deferred revenue under this
agreement is also $951,000 at December 31, 1997.
 
  1996 Compared to 1995
 
  Sales increased $4,284,000, or 14%, to $34,785,000. The growth occurred in
both of the Company's business segments. Sales of Animal Health Products in
1996 increased 8% to $31,262,000, or 90% of total sales, compared with
$28,869,000, or 95% of 1995 total sales. Poultry vaccine sales accounted for
$19,953,000, or 57% of the Company's total sales. International sales of
Animal Health Products increased $2,073,000, or 17%, principally to countries
in the Asia/Pacific marketplace, including China, Malaysia, Indonesia and
Taiwan. Domestic sales of poultry vaccines decreased 2% from 1995 levels.
Companion pet product sales increased $597,000, or 6%, to $11,309,000.
 
  Sales of Consumer Products increased $1,891,000, or 116%, to $3,523,000 and
accounted for 10% of Company sales, up from $1,632,000, or 5% of 1995 total
sales. This increase was due principally to continued expansion of the number
of products containing the Company's licensed proprietary Novasome lipid
vesicle technology sold to Estee Lauder, resulting in a $1,000,000 increase
over 1995. Sales of the Company's former line of Nova Skin Care products,
which were launched in February 1996, accounted for $402,000 of sales.
Marketing rights to these products (Novasome-based alpha-hydroxy acids) in the
United States to physicians were licensed to Glaxo in late 1996.
 
  The Company's gross profit increased $2,991,000, or 20%, with much of the
increase attributable to the sales growth. As a percentage of sales, gross
profit increased to 52% from 50% during 1995. The significant factor in the
gross margin improvement was the increased sales volume of higher margined
consumer products. These sales increased the utilization of the Company's skin
care manufacturing facility, which started producing products in 1995.
 
  Selling, general and administrative expenses increased $2,844,000, or 24%.
As a percentage of sales, these expenses were 42%, up from 38% in 1995. This
increase relates, in part, to the variable selling and distribution costs
associated with the higher sales volume. Selling and marketing costs
associated with the Nova Skin Care product line were $1,917,000, an increase
of $1,667,000 over 1995. In February 1997, the Company reduced its workforce
by 14 employees, most of whom were associated with its former Nova Skin Care
line.
 
  Research and development expenses increased $668,000, or 50%, over 1995, due
principally to increased new product development efforts in the both of the
Company's business segments. These efforts were directed to developing the
Nova Skin Care product line and other topical applications of the Novasome
technology. The Company continues to develop new vaccines for poultry. The
Company had $162,000 of research revenue in 1996, compared to $731,000 in
1995.
 
  Net interest expense increased $861,000, or 77%, due to higher borrowings
which were required to fund the 1995 operating losses of the Company's former
biotechnology business segment and the $5,000,000 license payment that was
made in connection with the spin-off of Novavax in December 1995. In
connection with the settlement of a lawsuit brought against the Company
related to employment contracts of certain IGI employees with their former
employers, the Company incurred charges of $175,000 for which the Company has
issued shares of IGI common stock. This amount is included in other expense.
 
  The provision for income taxes on continuing operations was lower than the
statutory rate due principally to subsidiary Company operating losses reported
on a separate return basis for state income tax purposes and research and
development tax credits, offset by non-deductible expenses. See also Notes 1,
3, and 10 of Notes to the Company's Consolidated Financial Statements.
 
                                      16
<PAGE>
 
LIQUIDITY AND CAPITAL RESOURCES
 
  During the first quarter of 1998, the Company was engaged in negotiating
amendments to its credit agreement with its bank lenders, including waivers of
its covenant defaults and an extension of the credit agreement since the
Company was in default under certain covenants contained in its bank credit
agreement during 1997 and at December 31, 1997. During the period from January
1, 1998 through April 29, 1998, the Company paid interest at a rate of prime
plus 4% on outstanding borrowings under its working capital line and prime
plus 4 1/2% on outstanding borrowings under its revolving credit facility. The
Company entered into an Extension Agreement with its bank lenders as of April
29, 1998 (the "Closing Date") which provided for the waiver of the then
existing covenant defaults, extension of the bank credit agreement through
March 31, 1999, a maximum credit line facility of $12,000,000 ("Credit Line")
and extended terms for repayment of the outstanding $6,857,142 balance (at
April 29, 1998) of revolving credit notes ("Revolving Facility").
 
  The Company was in default under certain covenants contained in the
Extension Agreement at July 31, 1998. On August 19, 1998, the Company and its
bank lenders entered into a Forbearance Agreement whereby the banks agreed to
forbear from exercising their rights and remedies arising from these covenant
defaults through January 31, 1999.
 
  The Extension Agreement and the Forbearance Agreement (the "Agreements")
provide for the following:
 
  . The maximum availability under the Credit Line is subject to the
    determination of the amount of eligible accounts receivable and eligible
    inventories. The Credit Line is due and payable in full on January 31,
    1999.
 
  . The outstanding balance of $6,857,142 under the Revolving Facility is due
    and payable on January 31, 1999.
 
  . All of the Company's indebtedness to the banks is subject to a security
    interest in all of the assets of the Company and its significant
    subsidiaries.
 
  . Interest on outstanding borrowings under both the Credit Line and the
    Revolving Facility will be:
 
<TABLE>
    <S>                                                        <C>
    From August 1, 1998 through September 30, 1998............ Prime plus 3 1/2%
    From October 1, 1998 through November 30, 1998............ Prime plus 4 1/2%
    From December 1, 1998 through January 31, 1999............ Prime plus 5 1/2%
</TABLE>
 
  . At the Closing Date the Company issued to the lenders warrants to
    purchase an aggregate of 540,000 shares of the Company's common stock at
    an exercise price of $3.50 per share. Warrants ("Unconditional Warrants")
    to purchase 270,000 shares are exercisable at any time during the period
    commencing 60 days after issuance and ending on the fifth anniversary of
    issuance, unless the Company is able to refinance its bank debt by
    October 31, 1998 in which case these warrants expire. Warrants
    ("Conditional Warrants") to purchase the remaining 270,000 shares are
    exercisable at any time during the period commencing September 1, 1998
    and ending on the fifth anniversary of issuance, unless the Company is
    able to refinance its bank debt by December 24, 1998 in which case these
    warrants expire. The Company has a call option on the warrants, which can
    only be exercised as to all of the shares issuable at that time, with a
    repurchase price of $900,000 for each of the Conditional Warrants and
    Unconditional Warrants. The Company will recognize a non-cash expense for
    these warrants when earned in accordance with Statement of Financial
    Accounting Standards No. 123. The Company estimates the total expense for
    warrants is approximately $400,000, or $.04 per share, net of taxes.
 
  . The Company agreed to pay Fleet Bank, as agent on behalf of the lenders,
    a monthly agent's fee of $5,000 and an extension fee of $250,000, of
    which $60,000 was paid at the time of the Extension, and the balance is
    payable in three installments through March 24, 1999.
 
  . The Company agreed to pay Fleet Bank, as agent on behalf of the lenders,
    a forbearance fee of $140,000, of which $20,000 was paid at the time of
    the Forbearance, and the balance is payable in three installments
 
                                      17
<PAGE>
 
   through January 15, 1999. However, if the Company is able to replace its
   existing bank debt within the
   30 days following a forbearance fee due date, the installment then due
   plus all future installments shall be waived.
 
  The Agreements require the Company to maintain certain financial ratios and
comply with other non-financial covenants, and also prohibits the payment of
cash dividends without the prior written consent of the lenders. The Company
is actively seeking, and believes it will be able to secure, alternative
financing arrangements to replace its existing debt and lending terms through
a number of potential options including, but not limited to, the issuance of
debt or equity securities or a combination of both. The Company plans to
engage an investment banker for the purpose of formulating alternative
business strategies and to coordinate the orderly satisfaction of its
obligations. No assurance can be given that the Company will be able to obtain
alternative financing arrangements, and if it is unsuccessful in doing so, the
Company may be required to restrict its business operations or otherwise
modify its business strategy. The Company believes it will be able to remain
in compliance with its debt covenants through January 30, 1999.
 
  The Company's operating activities provided $2,437,000 of cash during 1997.
Cash was provided from non-cash charges to operations for depreciation,
amortization, loss reserves and the $1,000,000 payment from Glaxo under the
Glaxo Agreement. These amounts were offset, in part, by increases in accounts
receivable, inventories and other current assets. The accounts receivable
turnover ratio for 1997 was 4.51 compared to 4.24 for 1996. The accounts
receivable balances due from Mexico and Latin America were 24.5% of the total
receivable balances before allowance for doubtful accounts as of December 31,
1997 and the Company believes the net amounts are collectible. Mexico and
certain Latin American countries are important markets for the Company's
poultry vaccines and other products. These countries have historically
experienced varying degrees of political unrest and economic and currency
instability. In addition, the Company has accounts receivable from countries
in the Far East, including Indonesia and Thailand, which represent 17.4% of
the total receivable balances before allowance for doubtful accounts at
December 31, 1997. This area has recently experienced political, economic and
currency instability. Because of the volume of business transacted by the
Company in these areas, continuation or the recurrence of such unrest or
instability could adversely affect the business of its customers in those
countries or the Company's ability to collect its receivables from such
customers, which in either case could materially adversely affect the
Company's future operating results. The growth in inventories relates
principally to a build up in poultry vaccines as a result of the USDA stop
shipment actions. The inventory turnover ratio for 1997 was 1.89, compared to
1.82 for the year ended December 31, 1996. The Company believes its reserves
for inventory obsolescence and accounts receivable are adequate. The Company
used $568,000 for investing activities, principally capital expenditures for
the Company's manufacturing operations. Funding for the Company's operating
and investing activities were provided by borrowings under the Company's
working capital line of credit.
 
  At July 31, 1998, the Company had no available borrowing capacity under the
Credit Line and no borrowings available under the Revolving Facility. Funds
generated from operations and existing bank credit facilities are expected to
be sufficient to meet the Company's short-term cash requirements. However, the
funds available under its existing bank credit facilities are only sufficient
to finance the Company's operations at its current levels including the costs
associated with the USDA and other regulatory and litigation matters. The
Company will be required to raise additional funds to finance capital
expenditures as well as the expansion of its business. Additionally, the bank
facility expires in January 1999. The Company, therefore, intends to seek
additional funds through the issuance of debt or equity securities or a
combination of both. No assurance can be given that the Company will be able
to obtain the additional required funds, and if it is unsuccessful in doing so
the Company may be required to restrict its business operations or otherwise
modify its business strategy.
 
FACTORS THAT MAY AFFECT FUTURE RESULTS
 
  The industry segments in which the Company competes are constantly changing
and are subject to significant competitive pressures. The following sets forth
some of the risks which the Company faces.
 
ADVERSE EFFECTS OF USDA ACTIONS AND OIG AND U.S. ATTORNEY INVESTIGATIONS
 
  The Company believes that the Stop Shipment Order and other actions by the
USDA in 1997 and the ongoing government investigations described in
"Management's Discussion and Analysis of Financial Condition
 
                                      18
<PAGE>
 
and Results of Operations" ("MD&A"), and the costs incurred in connection with
those investigations will have a materially adverse effect on its business and
results of operations in 1998. First, the Company needs to attract, train and
retain key employees for its management team to replace key employees
terminated in 1997 and 1998, including corporate officers to head up its
manufacturing operations, marketing and sales and business development.
Second, the Company needs to satisfy the USDA and the government agencies and
its customers that it has established and implemented compliance programs that
will prevent future violations of government regulations applicable to its
poultry vaccine business. Third, it must assure its customers that its future
business operations will comply with all applicable government rules and
regulations and that its financial condition is adequate to meet its business
commitments and to maintain a viable and stable business environment. Fourth,
it must comply with all of the covenants in its bank credit agreement to
assure continued bank financing of its operations and replace its current bank
agreement. Fifth, it must raise additional funds, either through additional
borrowing or the sale of equity, to meet its growth objective and to maintain
its competitive position. Sixth, it must overcome the adverse effects of the
AMEX's trading suspension of the Company's Common Stock to provide the
opportunity for the Company to raise additional funds for its business. No
assurance can be given that the Company will be able to accomplish all or any
of the foregoing requirements, and if it is unsuccessful in doing so, or if
the OIG, U.S. Attorney or the SEC decides to commence enforcement proceedings
against the Company, those proceedings, as well as the costs and expenses
related to them, could have a material adverse effect on the Company's
business, financial condition and results of operations. In addition, the
costs and expenses, including legal, accounting and consulting fees and
expenses, associated with the ongoing investigations and existing and
potential litigation have been, and are expected to continue to be,
substantial and will have a materially adverse effect on the Company's 1998
operating results.
 
  The Company is cooperating fully with the U.S. Attorney and each of the
regulatory agencies and has produced a substantial amount of documents and
information requested by the U.S. Attorney. The U.S. Attorney has not
indicated what course of action, if any, it may pursue with respect to IGI in
light of the Company's extensive cooperation. The Company has not been advised
that it or any of its present employees are targets of any Justice Department
or regulatory investigation. Although there can be no assurance as to the
outcome of any proceeding, the Company expects that it will be able to achieve
a satisfactory resolution of its existing regulatory and litigation matters.
However, if criminal charges were to be brought against IGI, the Company could
incur substantial costs in fines and attorney's fees to defend the action. The
Company could also face additional substantial costs in administrative civil
penalties. Since the Company expects a satisfactory resolution of these
matters, no reserves were provided at December 31, 1997.
 
HIGHLY LEVERAGED; INABILITY TO OBTAIN ADDITIONAL FUNDING
 
  The Company has historically applied the operating profits from its animal
health products business to fund the development of its consumer products
business and its former biotechnology business, Novavax, which was distributed
to the Company's stockholders in December 1995. The Company is currently very
highly leveraged and has negative working capital, and therefore will need
additional capital to finance the expansion of its animal health products and
consumer products businesses. No assurance can be given that such funds will
be obtained when required or, if obtainable, on terms that are favorable to
the Company.
 
  The Company was in violation of certain covenants in its bank credit
agreements during 1997 and at December 31, 1997. In April 1998 the banks
agreed to a waiver of the covenant defaults and to extend the credit agreement
on revised terms and conditions through March 31, 1999. The Company was in
default under certain covenants contained in the Extension Agreement at July
31, 1998. On August 19, 1998, the Company and its bank lenders entered into a
Forbearance Agreement whereby the banks agreed to forbear from exercising
their rights and remedies arising from these covenant defaults through January
31, 1999. The Company is actively seeking alternative financing arrangements
to replace its existing debt and lending terms through a number of potential
options including, but not limited to, the issuance of debt or equity
securities or a combination of both. No assurance can be given that the
Company will be able to obtain alternative financing arrangements, and if it
is unsuccessful in doing so, the Company may be required to restrict its
business operations or otherwise modify
 
                                      19
<PAGE>
 
its business strategy. The Company believes it will be able to remain in
compliance with its debt covenants through January 30, 1999. No assurance can
be given that the banks will waive future covenant defaults or modify the
terms of the credit agreement to accommodate the Company.
 
SUSPENSION OF TRADING
 
  The Company was unable to file its 1997 Annual Report on Form 10-K by the
March 31, 1998 due date. As a result, the AMEX halted trading of the Company's
common stock. No assurance can be given that AMEX trading privileges will be
resumed in the future. The failure of the Company to maintain its trading on
the AMEX could adversely affect its ability to raise additional funds required
for its business through the sale of debt or equity securities and would limit
and adversely affect the trading market for its outstanding common stock and
the ability of stockholders to liquify their holdings on favorable market
terms.
 
INTENSE COMPETITION IN CONSUMER PRODUCTS BUSINESS
 
  The Company's Consumer Products Business competes with large, well-financed
cosmetics and consumer products companies with development and marketing
groups that are experienced in the industry and possess far greater resources
than those available to the Company. There is no assurance that the Company's
consumer products can compete successfully against its competitors or that it
can develop and market new products that will be favorably received in the
marketplace. In addition, certain of the Company's customers that use the
Company's Novasome lipid vesicles in their products may decide to reduce their
purchases from the Company or shift their business to other technologies.
 
COMPETITION IN POULTRY VACCINE BUSINESS
 
  The Company is encountering increasingly severe competition from
international producers of poultry vaccines, particularly increased price
competition coupled with a downward trend in vaccine prices.
 
FOREIGN REGULATORY AND ECONOMIC CONSIDERATIONS
 
  The Company's business may be adversely affected by foreign import
restrictions and additional regulatory requirements. Also, unstable or adverse
economic conditions and fiscal and monetary policies in certain Latin American
and Far East countries, an increasingly important market for the Company's
animal health products, could adversely affect the Company's future business
in these countries.
 
RAPIDLY CHANGING MARKETPLACE FOR ANIMAL HEALTH PRODUCTS
 
  The emergence of pet superstores, the consolidation of distribution channels
into a smaller number of large, more powerful companies and the changing role
of veterinarians in the distribution of animal health products, could
adversely affect the Company's ability to expand its animal health business
and to operate at the gross margin levels historically enjoyed by the Company.
 
EFFECT OF RAPIDLY CHANGING TECHNOLOGIES
 
  The Company expects to rely on the features of its technologies to license
the technologies to third parties which would manufacture and market products
incorporating the technologies. However, if its competitors develop new and
improved technologies that are superior to the Company's technologies, its
technologies could be less acceptable in the marketplace and therefore the
Company's planned technology licensing could be materially adversely affected.
 
REGULATORY CONSIDERATIONS
 
  The Company's animal health products are regulated by the USDA and the FDA
which subject the Company to review, oversight and periodic inspections. Any
new products are subject to expensive and sometimes protracted USDA and FDA
regulatory approval. Also, certain of the Company's products may not be
approved for sales overseas on a timely basis, thereby limiting the Company's
ability to expand its foreign sales.
 
                                      20
<PAGE>
 
YEAR 2000
 
  The Company recognizes the need to ensure its operations will not be
adversely impacted by Year 2000 software failures. Software failures due to
the processing errors potentially arising from calculations using the Year
2000 date are a known risk. The Company is addressing this risk to the
availability and integrity of financial systems and the reliability of
operational systems. The Company has established a management committee to
evaluate the risk and costs associated with this problem. An initial
assessment has been completed and the cost of achieving Year 2000 compliance
is currently estimated to be approximately $350,000 over the cost of normal
hardware and software upgrades and replacements and will be incurred from
October 1998 through fiscal 1999.
 
ACCOUNTING STANDARDS CHANGES
 
  In June 1997, the Financial Accounting Board ("FASB") issued Statement of
Accounting Standards (SFAS) No. 130 "Reporting Comprehensive Income." This
Statement establishes standards for reporting all components of comprehensive
income. This Statement is effective for financial statements issued for
periods ending after December 15, 1998. The Company is currently evaluating
the impact, if any, adoption of SAFS No. 130 will have on its financial
statements.
 
  In June 1997, the FASB issued SFAS No. 131 "Disclosures about Segments of an
Enterprise and Related Information," which revises disclosure requirements
related to operating segments, products and services, the geographic areas in
which the Company operates and major customers. The Company will adopt this
statement for fiscal 1998 and does not presently anticipate any material
change in its disclosures.
 
INCOME TAXES
 
  The Company has a net deferred tax asset in the amount of approximately $4
million as of December 31, 1997. The largest deferred tax asset relates to the
$5 million Novavax license payment that is being deducted over a ten-year
period which began in 1996. Management believes, on a more likely than not
basis, that the Company's net deferred tax asset will be realized through the
reversal of existing taxable temporary differences and the generation of
sufficient future taxable operating income to ensure utilization of remaining
deductible temporary differences, net operating losses and tax credits. The
minimum level of future taxable income necessary to realize the Company's net
deferred tax assets at December 31, 1997, is approximately $15 million. There
can be no assurance, however, that the Company will be able to achieve the
minimum levels of taxable income necessary to realize its net deferred assets.
The majority of the net operating loss carryforwards expire in 2007 and
federal research credits expire in varying amounts through the year 2012.
Management believes that it will be able to utilize these carryforwards. The
Company's consolidated federal taxable loss in 1997 and 1996 differed from its
consolidated financial statement loss. In 1997 and 1996, taxable loss was
lower due to increases in reserves for inventories and accounts receivable
plus lower depreciation claimed for tax purposes, which exceeded the tax
deductions for a portion of the prepaid license agreement. In 1995, taxable
income from continuing operations was lower due to tax deductions relating to
nonqualifying stock dispositions.
 
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
 
  Not Applicable.
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
 
  The financial statements and notes thereto listed in the accompanying index
to financial statements (Item 14) are filed as part of this Annual Report and
incorporated herein by reference.
 
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE
 
  On July 23, 1997, the Company was informed by Coopers & Lybrand L.L.P.
(C&L), who were the Company's independent accountants for the years ended
December 31, 1996 and 1995, that C&L was resigning as the Company's auditors
effective as of that date. C&L's reports on the Company's 1996 and 1995
financial
 
                                      21
<PAGE>
 
statements contained no adverse opinion or disclaimer of opinion, and were not
qualified or modified as to uncertainty, audit scope or accounting principle.
The decision to terminate the client-auditor relationship between the Company
and C&L was made by C&L, and neither the Company's Board of Directors nor its
Audit Committee participated in the decision to change the Company's
independent accountants. In connection with its audits for the two years ended
December 31, 1996, and through July 23, 1997, there were no disagreements with
C&L on any matter of accounting principles or practices, financial statement
disclosure, or auditing scope or procedure, which disagreement would have
caused C&L to make reference thereto in their report on the financial
statements for such periods. On September 8, 1997, the Company engaged Price
Waterhouse LLP ("PW") to act as its independent accountants. The Company did
not consult with PW during the Company's two most recent fiscal years and any
subsequent interim period prior to engaging them regarding matters that were
or should have been subject to Statement on Auditing Standard No. 50 or any
subject matter of a disagreement or reportable event with its former
accountant.
 
                                      22
<PAGE>
 
                                    PART III
 
ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
 
  The information required by this item is contained in part under the caption
"Executive Officers of the Company" in Part I hereof, and is incorporated
herein by reference.
 
  The following table sets forth certain information with respect to the
directors and the Company:
 
<TABLE>
<CAPTION>
                                                   PRINCIPAL OCCUPATION, OTHER
                                                   BUSINESS EXPERIENCE DURING
                                        DIRECTOR    PAST FIVE YEARS AND OTHER
                NAME                AGE  SINCE            DIRECTORSHIPS
                ----                --- -------- ------------------------------
 <C>                                <C> <C>      <S>
 Edward B. Hager, M.D. ...........  67    1977   Chairman of the Board of
                                                 Directors and Chief Executive
                                                 Officer of IGI, Inc. since
                                                 1977; Chairman of the Board of
                                                 Directors and Chief Executive
                                                 Officer of Novavax, Inc. from
                                                 1987 to June 1996; Chairman of
                                                 the Board of Directors of
                                                 Novavax, Inc. from February
                                                 1997 to March 1998; Dr. Hager
                                                 is the husband of Jane E.
                                                 Hager.
 
 Jane E. Hager....................  52    1977   President of Prescott
                                                 Investment Corp. (real estate
                                                 development), Lyndeboro, NH
                                                 since 1991; former Treasurer
                                                 and Secretary of IGI, Inc.;
                                                 Director of Fleet Bank-NH,
                                                 Nashua, NH from 1986 to 1997;
                                                 Trustee and Treasurer of the
                                                 University System of New
                                                 Hampshire; Overseer of
                                                 Dartmouth Mary Hitchcock
                                                 Hospital; Incorporator of New
                                                 Hampshire Charitable Fund,
                                                 Concord, NH; Director of
                                                 Novavax, Inc. from February
                                                 1997 to March 1998; Mrs. Hager
                                                 is the wife of Edward B.
                                                 Hager.
 
 John P. Gallo....................  55    1985   President and Chief Operating
                                                 Officer of IGI, Inc. from 1985
                                                 to November 1997; President of
                                                 Novavax, Inc. from January
                                                 through September 1995, and
                                                 Chief Operating Officer and
                                                 Treasurer of Novavax, Inc.
                                                 from September 1995 to May
                                                 1996.
 
 David G. Pinosky, M.D. ..........  68    1980   Member of the faculty of the
                                                 University of Miami School of
                                                 Medicine since 1963; Medical
                                                 Director, Psychiatric Unit,
                                                 Palmetto General Hospital,
                                                 Hialeah, FL since 1986;
                                                 President, Miami Psychiatric
                                                 Associates since 1971; Medical
                                                 Director of Highland Park
                                                 General Hospital, Miami, FL
                                                 from 1971 to 1986.
 
 Terrence O'Donnell...............  54    1993   Member of law firm of Williams
                                                 & Connolly, Washington, D.C.
                                                 since March 1992 and from
                                                 March 1977 to October 1989;
                                                 General Counsel of Department
                                                 of Defense from October 1989
                                                 to March 1992; Special
                                                 Assistant to President Ford
 
</TABLE>
 
                                       23
<PAGE>
 
<TABLE>
<CAPTION>
                                                   PRINCIPAL OCCUPATION, OTHER
                                                   BUSINESS EXPERIENCE DURING
                                        DIRECTOR    PAST FIVE YEARS AND OTHER
                NAME                AGE  SINCE            DIRECTORSHIPS
                ----                --- -------- ------------------------------
 <C>                                <C> <C>      <S>
                                                 from August 1974 to January
                                                 1977; Deputy Special Assistant
                                                 to President Nixon from May
                                                 1972 to August 1974; Director
                                                 of MLC Holdings.
 
 Constantine L. Hampers, MD.......  65    1994   Chief Executive Officer of MDL
                                                 Consulting Associates since
                                                 1996; Chairman of the Board of
                                                 Directors and Chief Executive
                                                 Officer of National Medical
                                                 Care, Inc., a provider of in-
                                                 center and home kidney
                                                 dialysis services and
                                                 products, from 1968 to 1996;
                                                 Executive Vice President and
                                                 Director of W. R. Grace & Co.
                                                 ("W. R. Grace") from 1986 to
                                                 1996; Director of Artificial
                                                 Kidney Services at Peter Bent
                                                 Brigham Hospital and Assistant
                                                 Professor of Medicine at
                                                 Harvard University School of
                                                 Medicine prior to 1968 and for
                                                 several years thereafter.
 
 Paul D. Paganucci................  67    1996   1996 Chairman of the Board of
                                                 Directors of Ledyard National
                                                 Bank since 1991; Chairman of
                                                 the Executive Committee of
                                                 Board of Directors of W.R.
                                                 Grace from 1989 to 1991; Vice
                                                 Chairman of W.R. Grace from
                                                 1986 to 1989; Executive Vice
                                                 President of W.R. Grace from
                                                 January 1986 to November 1986;
                                                 Director of HRE Properties,
                                                 Inc., Filene's Basement, Inc.
                                                 and Allmerica Securities
                                                 Trust.
 
 Terrence D. Daniels..............  55    1996   President of Quad-C (a
                                                 structured investment firm)
                                                 since 1990; Vice Chairman of
                                                 W.R. Grace & Co. from 1986 to
                                                 1989; Director of DSG
                                                 International Ltd., Eskimo Pie
                                                 Corporation and Stimsonite
                                                 Corporation.
 
 F. Steven Berg...................  63    1998   President of Bishopsgate
                                                 Financial Corp. (Investment
                                                 company) since 1990.
</TABLE>
 
  Mr. Gallo has not been nominated for election as a director at the next
Annual Meeting of Shareholders.
 
 
SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE
 
  Section 16(a) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), requires the Company's directors, executive officers and
holders of more than 10% of the Company's Common Stock ("Reporting Persons")
to file with the Commission initial reports of ownership and reports of
changes in ownership of Common Stock and other equity securities of the
Company. Except as set forth below, and based solely on its review of copies
of reports filed by Reporting Persons furnished to the Company, the Company
believes that during 1997 its Reporting Persons complied with all Section
16(a) filing requirements. F. Steven Berg, a director of the Company, failed
to file on a timely basis a Form 3--Initial Statement of Beneficial Ownership
of Securities.
 
                                      24
<PAGE>
 
ITEM 11. EXECUTIVE COMPENSATION
 
SUMMARY COMPENSATION TABLE
 
  The following table sets forth the cash and noncash compensation for each of
the last three fiscal years awarded to or earned by the Chief Executive
Officer of the Company, the four most highly compensated executive officers of
the Company who received compensation in excess of $100,000 during 1997 and
who were serving as executive officers at the end of 1997 and the former
President of the Company, whose employment was terminated in November 1997
(collectively, the "Named Executive Officers").
 
                          SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                            LONG-TERM
                                                           COMPENSATION
                                                           ------------
                                                              AWARDS
                                                           ------------
                                  ANNUAL COMPENSATION
                              ----------------------------  SECURITIES
                                              OTHER ANNUAL  UNDERLYING   ALL OTHER
   NAME AND PRINCIPAL          SALARY  BONUS  COMPENSATION  OPTIONS(2)  COMPENSATION
        POSITION         YEAR   ($)     ($)     (1) ($)        (#)        (3) ($)
   ------------------    ---- -------- ------ ------------ ------------ ------------
<S>                      <C>  <C>      <C>    <C>          <C>          <C>
Edward B. Hager......... 1997 $303,480 $  --     $  --           --       $11,944
 Chief Executive Officer 1996  345,455    --        --        50,000       12,864
                         1995  314,050 55,000       --        50,000       12,062
 
John P. Gallo (4)....... 1997  329,172    --      1,678          --        12,288
 President and Chief
  Operating              1996  345,455    --     44,860       50,000       12,772
  Officer                1995  314,050 50,000    41,777       50,000       12,062
 
Stephen G. Hoch (5)..... 1997  218,149    --      7,200          --         8,166
 Vice President          1996  200,293 10,000     7,200        5,000        9,128
                         1995  186,886  5,000     7,200        5,000        9,609
 
Lawrence N. Zitto (6)... 1997  166,689    --      7,200          --         9,381
 Vice President          1996  155,138 10,000     7,200       10,000       11,562
                         1995  140,196 10,000     7,200       10,000       11,727
 
Surendra Kumar (7)...... 1997  140,947    --      7,200          --         7,834
 Vice President          1996  130,698  5,000     7,200        5,000        9,362
                         1995  121,990  5,000     7,200        5,000        8,486
 
Kevin J. Bratton........ 1997  122,723    --      6,000          --         8,847
 Vice President and
  Treasurer              1996  116,416  3,000     6,000        5,000       10,588
                         1995  113,807  2,000     6,000        5,000       10,938
</TABLE>
- --------
(1) The amounts shown in this column represent automobile allowances, medical
    expense reimbursement, housing allowances and compensation for unused
    vacation time. Mr. Gallo received $38,653 and $36,237 in 1996 and 1995,
    respectively, as compensation for unused vacation time. Mr. Gallo received
    no compensation for unused vacation time in 1997.
 
(2) The Company has never granted any stock appreciation rights.
 
(3) The amounts shown in this column represent premiums for group life
    insurance and medical insurance paid by the Company and the Company's
    contributions under its 401(k) plan. The group life insurance premiums
    paid by the Company for each of Dr. Hager and Messrs. Gallo, Hoch, Zitto,
    Kumar and Bratton for the last fiscal year were $800, $1,128, $1,230,
    $1,230, $1,058 and $1,023, respectively. The medical insurance premiums
    paid by the Company during 1997 for each of Dr. Hager and Messrs. Gallo,
    Hoch, Zitto, Kumar
 
                                      25
<PAGE>
 
   and Bratton were $8,581, $7,843, $4,402, $6,259, $5,047 and $6,259,
   respectively. The Company's matching contributions under its 401(k) savings
   plan to each of Dr. Hager and Messrs. Gallo, Hoch, Zitto, Kumar and Bratton
   for the last fiscal year were $2,563, $2,579, $2,534, $1,892, $1,729 and
   $1,615, respectively.
 
(4) In November 1997, the Company terminated Mr. Gallo for willful misconduct
    in the performance of his executive duties. In connection with the
    December 1995 spin-off of Novavax, Inc. ("Novavax"), a formerly majority-
    owned subsidiary of the Company, Mr. Gallo also served as Chief Operating
    Officer and Treasurer of Novavax from January 1996 to June 30,1996.
    Pursuant to a Transition Services Agreement entered into by the Company
    and Novavax to facilitate the spin-off, Novavax agreed to pay half of Mr.
    Gallo's salary during this time. See "Management's Discussion and Analysis
    of Financial Condition and Results of Operations".
 
(5) Mr. Hoch resigned in July 1998.
 
(6) Mr. Zitto resigned in April 1998.
 
(7) Dr. Kumar resigned in February 1998.
 
STOCK OPTIONS
 
  No stock options or SAR's were granted to any Named Executive Officers
during 1997. The following table summarizes option exercises during 1997 by
the Named Executive Officers and the value of the options held by such persons
at the end of 1997.
 
              AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR AND
                         FISCAL YEAR-END OPTION VALUES
 
<TABLE>
<CAPTION>
                                                    NUMBER OF SECURITIES
                                                   UNDERLYING UNEXERCISED       VALUE OF UNEXERCISED
                                          VALUE       OPTIONS AT FISCAL        IN-THE-MONEY OPTIONS AT
                         SHARES ACQUIRED REALIZED       YEAR-END (#)             FISCAL YEAR-END ($)
          NAME           ON EXERCISE (#) ($) (1)  EXERCISABLE/UNEXERCISABLE EXERCISABLE/UNEXERCISABLE (2)
          ----           --------------- -------- ------------------------- -----------------------------
<S>                      <C>             <C>      <C>                       <C>
Edward B. Hager.........     20,000      $11,950       425,000/0                        $0/$0
John P. Gallo...........        --           --        325,000/0                         0/0
Stephen G. Hoch.........        --           --         42,250/8,250                     0/0
Lawrence N. Zitto.......        --           --         52,500/15,000                    0/0
Surendra Kumar..........        --           --         34,250/7,500                     0/0
Kevin J. Bratton........        --           --         21,000/7,000                     0/0
</TABLE>
- --------
(1) Represents the difference between the exercise price and the last sales
    price of the Common Stock on the date of exercise.
 
(2) Value based on market value of the Company's Common Stock at December 31,
    1997 ($3.75 per share) minus the exercise price.
 
EMPLOYMENT AGREEMENTS
 
  In October 1997, the Company amended the Employment Agreement with each of
Dr. Hager and Mr. Gallo to provide for a reduction in their annual salaries,
but extended the period for payment of the reduced salaries through the year
2005. On January 19, 1998, the Board of Directors rescinded the revised salary
arrangements for Dr. Hager and restored the annual salary payable under his
Employment Agreement ($380,000 for 1997). In addition, pursuant to his
Employment Agreement, Dr. Hager is entitled to an annual increase of 10% of
his prior year's salary each year through December 31, 1999, the expiration
date of the Employment Agreement. However, Dr. Hager has waived the 10%
increase for 1998 and agreed to defer the payment of his annual salary,
without interest, to preserve cash for the Company's cash needs. Dr. Hager's
accrued unpaid salary as of June 30,
 
                                      26
<PAGE>
 
1998 was $190,000 and that amount plus future deferred salary payments will be
paid to Dr. Hager at such time as the Board of Directors of the Company, in
consultation with the Compensation Committee, determines that the Company's
cash position is adequate to pay the deferred amount and to resume the current
payment of his salary. His agreement also provides for continuation of his
salary through December 31, 1999, in the event he is terminated without cause
prior to that date.
 
  Mr. Gallo, the former President of the Company, had an Employment Agreement
similar to Dr. Hager's. However, on November 22, 1997, the Company terminated
Mr. Gallo's employment for willful misconduct in the performance of his
executive duties, and on April 21, 1998 the Company commenced a lawsuit
against Mr. Gallo. See "Legal Proceedings."
 
  Each of Dr. Hager and Mr. Gallo is bound by certain non-compete and non-
solicitation obligations for five years after termination of employment or
such longer period during which he receives severance payments under the
employment agreement.
 
  The Company has finalized arrangements with each of Messrs. Wall and Woitach
on the basic terms of their employment by the Company that have not been
formalized into a final document. Pursuant to these agreements, Messrs. Wall
and Woitach are entitled to continuation of their respective salary for up to
one year for Mr. Wall and up to 18 months for Mr. Woitach, based upon the
length of service, if terminated without cause prior to that date. The
arrangements for Messrs. Wall and Woitach are for a one year period which is
automatically extended annually unless terminated by the Company by written
notice at least 90 days prior to renewal.
 
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
  Drs. Hampers, Chairman of the Compensation and Stock Option Committee (the
"Committee"), and Pinosky and Messrs. Daniels and O'Donnell served as members
of the Committee during 1997.
 
DIRECTOR COMPENSATION AND STOCK OPTIONS
 
  Each director not employed by the Company receives $2,000 for each meeting
of the Board of Directors he or she attends.
 
  Pursuant to the Company's 1991 Stock Option Plan (the "1991 Plan"), each
director who is not an employee of the Company (an "Eligible Director") is
granted a stock option for the purchase of 20,000 shares of Common Stock sixty
days after his or her initial election as a director. In addition, the 1991
Plan provides that each Eligible Director will be granted a stock option to
purchase 10,000 shares of Common Stock on the last business day of each of the
calendar years through 1999. Each Eligible Director elected on or after March
13, 1991 received an option for the initial grant of 20,000 shares, and each
Eligible Director then serving as a director received additional options for
10,000 shares in each of the years 1992 through 1997. Options granted to
Eligible Directors are exercisable in full beginning six months after the date
of grant and terminate ten years after the date of grant. Such options cease
to be exercisable at the earlier of their expiration or three years after an
Eligible Director ceases to be a director for any reason. In the event that an
Eligible Director ceases to be a director on account of his death, his
outstanding options (whether exercisable or not on the date of death) may be
exercised within three years after such date (subject to the condition that no
such option may be exercised after the expiration of ten years from its date
of grant).
 
                                      27
<PAGE>
 
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
BENEFICIAL OWNERSHIP OF COMMON STOCK
 
  The following table sets forth information as of July 31, 1998 with respect
to the beneficial ownership of shares of Common Stock by (i) each person known
to the Company to own beneficially more than 5% of the outstanding shares of
Common Stock, (ii) the directors of the Company, (iii) the Named Executive
Officers and (iv) the directors and executive officers of the Company as a
group. Unless otherwise noted, the persons named in the table have sole voting
and investment power with respect to all shares of Common Stock shown as
beneficially owned by them.
 
<TABLE>
<CAPTION>
                                                                      PERCENT OF
                 BENEFICIAL OWNER                   NUMBER OF SHARES    CLASS
                 ----------------                   ----------------  ----------
<S>                                                 <C>               <C>
Stephen J. Morris..................................    2,254,635(1)      23.8%
 66 Navesink Avenue
 Rumson, New Jersey
 
Jane E. Hager......................................    1,204,815(2)      12.5%
 Pinnacle Mountain Farms
 Lyndeboro, NH 03082
 
Edward B. Hager, M.D...............................    1,065,815(3)      10.8%
 Pinnacle Mountain Farms
 Lyndeboro, NH 03082
 
Mellon Bank Corporation............................      881,310(4)       9.1%
 One Mellon Bank Center
 Pittsburgh, PA 15258
 
John P. Gallo......................................      643,397(5)       6.6%
 Country Club Lane
 Buena, NJ 08310
 
David G. Pinosky, M.D..............................      304,900(6)       3.1%
Terrence O'Donnell.................................       70,000(7)         *
Constantine L. Hampers, M.D........................       63,000(8)         *
Terrence D. Daniels................................       40,000(9)         *
Paul D. Paganucci..................................       40,000(9)         *
F. Steven Berg.....................................          --             *
Stephen G. Hoch....................................       42,250(10)        *
Lawrence N. Zitto..................................       67,500(11)        *
Surendra Kumar.....................................        8,000            *
Kevin J. Bratton...................................       26,500(12)        *
All executive officers and directors, as a group
 (13 Persons)......................................    2,292,965(13)     21.8%
</TABLE>
- --------
  *  Less than 1% of the Common Stock outstanding.
 
 (1) The information reported is based on Amendment No. 2 to Schedule 13D
     dated December 29, 1997 and filed with the Securities and Exchange
     Commission (the "Commission") by Stephen J. Morris. Mr. Morris has sole
     voting power and investment power with respect to 1,481,000 shares and
     shared voting power with respect to 773,635 shares.
 
 (2) Includes 639,815 shares beneficially owned by Dr. Hager, as co-trustee of
     the Hager Family Trust as to which Mrs. Hager as co-trustee of the Hager
     Family Trust, has shared voting and investment power. Includes 140,000
     shares which may be acquired pursuant to stock options exercisable within
     60 days after July 31, 1998.
 
                                      28
<PAGE>
 
 (3) Includes 425,000 shares which Dr. Hager may acquire pursuant to stock
     options exercisable within 60 days after July 31, 1998, and 639,815
     shares (also listed above) beneficially owned by Mrs. Hager as co-trustee
     of the Hager family trust.
 
 (4) The information reported is based on a Schedule 13G dated January 20,
     1998, filed with the Commission by Mellon Bank Corporation. Includes
     240,000 shares which may be acquired pursuant to warrants exercisable
     within 60 days after July 31, 1998. (See "Management's Discussion and
     Analysis of Financial Condition and Results of Operations--Liquidity and
     Capital Resources".)
 
 (5) Includes 325,000 shares which Mr. Gallo may acquire pursuant to stock
     options exercisable within 60 days after July 31, 1998. The Company
     terminated Mr. Gallo as President and Chief Operating Officer on November
     22, 1997.
 
 (6) Includes 140,000 shares which may be acquired pursuant to stock options
     exercisable within 60 days after July 31, 1998.
 
 (7) Consists of 70,000 shares which may be acquired pursuant to stock options
     exercisable within 60 days after July 31, 1998.
 
 (8) Includes 60,000 shares which may be acquired pursuant to stock options
     exercisable within 60 days after July 31, 1998.
 
 (9) Consists of 40,000 shares which may be acquired pursuant to stock options
     exercisable within 60 days after July 31, 1998.
 
(10) Consists of 42,250 shares which may be acquired pursuant to stock options
     exercisable within 60 days after July 31, 1998.
 
(11) Includes 52,500 shares which may be acquired pursuant to stock options
     exercisable within 60 days after July 31, 1998.
 
(12) Includes 21,000 shares which may be acquired pursuant to stock options
     exercisable within 60 days after  July 31, 1998.
 
(13) Includes 1,030,750 shares which may be acquired pursuant to stock options
     exercisable within 60 days after July 31, 1998.
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
  In November 1990, the Company advanced $70,000 to Mr. Gallo, the President
and Chief Operating Officer of the Company until the termination of his
employment on November 22, 1997. Mr. Gallo issued the Company a note in the
principal amount of $70,000 bearing interest at the Company's bank borrowing
rate plus 1/4% per annum and secured by 10,000 shares of Common Stock. As of
June 30, 1998, the amount of indebtedness outstanding was $129,083. As set
forth above, in April 1998 the Company commenced a lawsuit against Mr. Gallo
for damages suffered by the Company for his willful misconduct in the
performance of his executive duties. As part of the lawsuit, the Company is
also demanding that Mr. Gallo repay this indebtedness. See "Legal
Proceedings". Due to the uncertainty of the outcome of the litigation against
Mr. Gallo, the Company has recorded a reserve against the note receivable
balance at December 31, 1997.
 
  During 1997, Dr. Hager and other Company personnel traveled at various times
on Company business on an airplane owned by a company which is wholly-owned by
Jane E. Hager, his wife and a director of the Company. Total charges to the
Company for its use of the airplane in 1997 were $68,930. The Board of
Directors authorized use of the aircraft for business travel, provided that
(i) the air travel rate billed to the Company for use of the airplane be at
least as favorable as the rate charged by private aircraft owners unaffiliated
with the Company, and (ii) use of the airplane be limited to 100 hours at
$1,350 per hour. However, the Company was only billed for Dr. Hager's business
use of the aircraft at rates not exceeding those for first class commercial
airfare.
 
                                      29
<PAGE>
 
  The Company has $6,857,142 of revolving credit notes and a $12,000,000
working capital line of credit with Fleet Bank--NH and Mellon Bank, N.A. Mrs.
Hager, a director of the Company, was a director of Fleet Bank--NH from 1986
to 1997. In connection with the April 29, 1998 Extension Agreement, the
Company issued to Mellon Bank warrants to purchase an aggregate of 240,000
shares of the Company's common stock at an exercise price of $3.50 per share.
On August 19, 1998, the Company and its bank lenders, Fleet Bank--NH and
Mellon Bank, N.A., entered into a Forbearance Agreement whereby the banks
agreed to forbear from exercising their rights and remedies arising from
covenant defaults through January 31, 1999. (See "Management Discussion and
Analysis of Financial Condition and Results of Operations--Liquidity and
Capital Resources".) As of July 31, 1998, Mellon Bank was the beneficial owner
of 881,310 shares of the Company's common stock or 9.1% of the outstanding
shares.
 
                                      30
<PAGE>
 
                                    PART IV
 
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
 
  (a) (1) Financial Statements:
 
      Reports of Independent Accountants
 
      Consolidated Balance Sheets, December 31, 1997 and 1996
 
      Consolidated Statements of Operations for the years ended December
      31, 1997, 1996 and 1995
 
      Consolidated Statements of Cash Flows for the years ended December
      31, 1997, 1996 and 1995
 
      Consolidated Statements of Stockholders' Equity for the years ended
      December 31, 1997, 1996 and 1995
 
      Notes to Consolidated Financial Statements
 
    (2) Financial Statement Schedules:
 
      Schedule II. Valuation and Qualifying Accounts and Reserves
 
      Schedules other than those listed above are omitted for the reason
      that they are either not applicable or not required or because the
      information required is contained in the financial statements or
      notes thereto.
 
      Condensed financial information of the Registrant is omitted since
      there are no substantial amounts of "restricted net assets"
      applicable to the Company's consolidated subsidiaries.
 
    (3) Exhibits Required to be Filed by Item 601 of Regulation S-K.
 
      The exhibits listed in the Exhibit Index immediately preceding such
      exhibits are filed as part of this Annual Report on Form 10-K.
 
  (b)     Reports on Form 8-K
 
      On December 4, 1997, the Company filed a Current Report on Form 8-K,
      dated November 24, 1997, to report under Item 5 (Other Events) that
      it had terminated the employment of John P. Gallo as its President
      and Chief Operating Officer.
 
                                      31
<PAGE>
 
                                  SIGNATURES
 
  Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.
 
<TABLE>
<S>                                            <C>
Date: August 24, 1998                          IGI, Inc.
                                               By: /s/ Edward B. Hager
                                               -----------------------
                                               Edward B. Hager,
                                               Chairman of the Board
</TABLE>
 
  Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
Registrant in the capacity and on the date indicated.
 
<TABLE>
<S>  <C>
</TABLE>
             SIGNATURES                        TITLE                 DATE
 
        /s/ Edward B. Hager            Chairman of the         August 24, 1998
- -------------------------------------   Board
           EDWARD B. HAGER
 
         /s/ John F. Wall              Principal Financial     August 24, 1998
- -------------------------------------   and Accounting
            JOHN F. WALL                Officer
 
       /s/ Terrence D. Daniels         Director                August 24, 1998
- -------------------------------------
         TERRENCE D. DANIELS
 
         /s/ Jane E. Hager             Director                August 24, 1998
- -------------------------------------
            JANE E. HAGER
 
    /s/ Constantine L. Hampers         Director                August 24, 1998
- -------------------------------------
       CONSTANTINE L. HAMPERS
 
      /s/ Terrence O'Donnell           Director                August 24, 1998
- -------------------------------------
         TERRENCE O'DONNELL
 
       /s/ Paul D. Paganucci           Director                August 24, 1998
- -------------------------------------
          PAUL D. PAGANUCCI
 
       /s/ David G. Pinosky            Director                August 24, 1998
- -------------------------------------
          DAVID G. PINOSKY
 
                                       Director
- -------------------------------------
           F. STEVEN BERG
 
                                      32
<PAGE>
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Board of Directors and Stockholders
of IGI, Inc.:
 
  In our opinion, the consolidated financial statements and financial
statement schedule as listed in Item 14(a) of this Form 10-K, after the
restatement described in Note 2, present fairly, in all material respects, the
financial position of IGI, Inc. and its subsidiaries at December 31, 1997 and
1996, and the results of their operations and their cash flows for each of the
three years in the period ended December 31, 1997 in conformity with generally
accepted accounting principles. These financial statements are the
responsibility of the Company's management; our responsibility is to express
an opinion on these financial statements based on our audits. We conducted our
audits of these statements in accordance with generally accepted auditing
standards which require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing
the accounting principles used and significant estimates made by management,
and evaluating the overall financial statement presentation. We believe that
our audits provide a reasonable basis for the opinion expressed above.
 
  As discussed in Note 8, the Company has substantial debt due on January 31,
1999, and is actively seeking alternative financing arrangements. Also, as
discussed in Note 13, the Company is involved in certain litigation matters
and is responding to inquiries from regulatory agencies. The Company expects
to achieve a satisfactory resolution of its existing regulatory and litigation
matters.
 
PricewaterhouseCoopers LLP
 
Philadelphia, Pennsylvania
July 31, 1998, except as to Note 8, which is as of August 19, 1998
 
                                      33
<PAGE>
 
                           IGI, INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
 
                           DECEMBER 31, 1997 AND 1996
                    (IN THOUSANDS, EXCEPT SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                             1997       1996
                                                           --------  ----------
                                                                     (RESTATED)
<S>                                                        <C>       <C>
                          ASSETS
Current assets:
  Cash and cash equivalents............................... $  1,196   $   317
  Accounts receivable, less allowance for doubtful
   accounts of $903 and $238 in 1997 and 1996,
   respectively...........................................    6,851     8,365
  Receivable due under royalty agreement..................      --      1,000
  Inventories.............................................    9,816     9,067
  Current deferred taxes..................................      728       310
  Prepaid expenses and other current assets...............      819     1,217
                                                           --------   -------
    Total current assets..................................   19,410    20,276
                                                           --------   -------
Investments...............................................    1,011        60
Property, plant and equipment--at cost:
  Land....................................................      625       625
  Buildings...............................................    9,600     9,382
  Machinery and equipment.................................    9,659     9,241
                                                           --------   -------
                                                             19,884    19,248
Less accumulated depreciation.............................  (10,048)   (9,121)
                                                           --------   -------
                                                              9,836    10,127
                                                           --------   -------
Deferred income taxes.....................................    3,247     3,073
Notes receivable..........................................      --        162
Other assets..............................................      540       686
                                                           --------   -------
                                                           $ 34,044   $34,384
                                                           ========   =======
           LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Notes payable to bank................................... $ 12,000   $ 9,642
  Revolving credit facility...............................    6,857     3,443
  Accounts payable........................................    3,841     2,665
  Accrued payroll.........................................      183       470
  Other accrued expenses..................................      909       675
  Income taxes payable....................................       89        38
                                                           --------   -------
    Total current liabilities.............................   23,879    16,933
                                                           --------   -------
Long-term debt, less current maturities...................       36     6,893
                                                           --------   -------
Deferred income from royalty contract.....................    1,801     1,000
                                                           --------   -------
Commitment and contingencies
Stockholders' equity:
  Common stock, $.01 par value, 30,000,000 shares autho-
   rized; 9,602,681 and 9,572,681 shares issued in 1997
   and 1996, respectively.................................       96        96
  Stock subscribed........................................       --       175
  Additional paid-in capital..............................   19,074    19,115
  Accumulated deficit.....................................   (8,649)   (7,196)
                                                           --------   -------
                                                             10,521    12,190
Less treasury stock; 136,014 and 164,082 shares at cost,
 in 1997 and 1996, respectively...........................   (2,163)   (2,518)
Stockholders' notes receivable............................      (30)     (114)
                                                           --------   -------
    Total stockholders' equity............................    8,328     9,558
                                                           --------   -------
                                                           $ 34,044   $34,384
                                                           ========   =======
</TABLE>
 
   The accompanying notes are an integral part of the consolidated financial
                                  statements.
 
                                       34
<PAGE>
 
                           IGI, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
              FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995
             (IN THOUSANDS, EXCEPT SHARE AND PER SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                  1997        1996       1995
                                                ---------  ----------  ---------
                                                           (RESTATED)  (RESTATED)
<S>                                             <C>        <C>         <C>
Net sales.....................................  $  34,193  $  34,785   $  30,501
Cost of sales.................................     17,834     16,581      15,288
                                                ---------  ---------   ---------
Gross profit..................................     16,359     18,204      15,213
Selling, general and administrative expenses..     14,997     14,485      11,641
Research and development expenses.............      1,675      2,013       1,345
Licensing and research revenues...............       (150)      (162)       (731)
                                                ---------  ---------   ---------
Operating profit (loss).......................       (163)     1,868       2,958
Interest expense..............................     (1,853)    (1,984)     (1,269)
Interest income...............................        --         --          146
Other income (expense), net...................        (11)      (202)          7
                                                ---------  ---------   ---------
Income (loss) from continuing operations
 before provision for income taxes............     (2,027)      (318)      1,842
Provision (benefit) for income taxes..........       (574)      (180)        513
                                                ---------  ---------   ---------
Income (loss) from continuing operations......     (1,453)      (138)      1,329
Loss from discontinued operations net of in-
 come tax benefits............................         -          -       (4,034)
                                                ---------  ---------   ---------
Net loss......................................  $  (1,453) $    (138)  $  (2,705)
                                                =========  =========   =========
Income (loss) per common and common equivalent
 share:
  Basic:
    From continuing operations................  $    (.15) $    (.01)  $     .14
                                                =========  =========   =========
    From discontinued operations..............  $     --   $     --    $    (.44)
                                                =========  =========   =========
    Net loss..................................  $    (.15) $    (.01)  $    (.29)
                                                =========  =========   =========
  Diluted:
    From continuing operations................  $    (.15) $    (.01)  $     .14
                                                =========  =========   =========
    From discontinued operations..............  $     --   $     --    $    (.41)
                                                =========  =========   =========
    Net loss..................................  $    (.15) $    (.01)  $    (.28)
                                                =========  =========   =========
Average number of common and common equivalent
 shares:
  Basic.......................................  9,457,938  9,323,440   9,173,156
                                                =========  =========   =========
  Diluted.....................................  9,457,938  9,323,440   9,725,230
                                                =========  =========   =========
</TABLE>
 
   The accompanying notes are an integral part of the consolidated financial
                                  statements.
 
                                       35
<PAGE>
 
                           IGI, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
              FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                   1997       1996      1995
                                                  -------  ---------- ---------
                                                           (RESTATED) (RESTATED)
<S>                                               <C>      <C>        <C>
Cash flows from operating activities:
  Net loss......................................  $(1,453)  $  (138)   $(2,705)
  Reconciliation of net loss to net cash used by
   operating activities:
    Depreciation and amortization...............    1,037       992        836
    Provision for loss on accounts and notes
     receivable and inventories.................    1,610       412        825
    Recognition of deferred revenue.............     (150)      --         --
    Issuance of stock to 401(k) plan............       40        91         69
    Benefit for deferred income taxes...........     (585)     (189)      (209)
    Stock option compensation expense...........       47       156        --
    Litigation settlement in common stock.......      (50)      175        --
  Changes in operating assets and liabilities:
    Accounts receivable.........................      721      (300)      (890)
    Inventories.................................   (1,352)     (375)    (1,751)
    Receivable due under royalty agreement......    1,000       --         --
    Prepaid and other assets....................      398      (455)       151
    Accounts payable and accrued expenses.......    1,123       130        939
    Income taxes payable/refundable.............       51        22          1
    Reimbursement from former subsidiary........      --        --         250
    Net assets of biotechnology segment.........      --        --        (226)
                                                  -------   -------    -------
Net cash provided from (used by) operating ac-
 tivities.......................................    2,437       521     (2,710)
                                                  -------   -------    -------
Cash flows from investing activities:
  Capital expenditures, net.....................     (636)     (913)    (2,397)
  (Increase) decrease in other assets...........       68        59         (5)
  License payment to former subsidiary..........      --        --      (5,000)
  Net assets of biotechnology segment...........      --        --        (360)
                                                  -------   -------    -------
Net cash used by investing activities...........     (568)     (854)    (7,762)
                                                  -------   -------    -------
Cash flows from financing activities:
  Net borrowings under line of credit
   agreements...................................    2,358     1,594      4,258
  Borrowings under revolving credit agreement...      --         12      2,000
  Payments of long-term debt....................   (3,443)   (1,714)        (9)
  Proceeds from exercise of common stock
   options......................................       95       589        938
  Proceeds from sale of common stock............      --        --       2,500
                                                  -------   -------    -------
Net cash provided from (used in) financing ac-
 tivities.......................................     (990)      481      9,687
                                                  -------   -------    -------
Net increase (decrease) in cash and equivalents.      879       148       (785)
Cash and cash equivalents at beginning of year..      317       169        954
                                                  -------   -------    -------
Cash and cash equivalents at end of year........  $ 1,196   $   317    $   169
                                                  =======   =======    =======
</TABLE>
 
   The accompanying notes are an integral part of the consolidated financial
                                  statements.
 
                                       36
<PAGE>
 
                           IGI, INC AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
 
              FOR THE YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995
                    (IN THOUSANDS, EXCEPT SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                            COMMON STOCK              ADDITIONAL STOCKHOLDERS' ACCUMU-                TOTAL
                          ----------------   STOCK     PAID-IN       NOTES      LATED   TREASURY  STOCKHOLDERS'
                           SHARES   AMOUNT SUBSCRIBED  CAPITAL    RECEIVABLE   DEFICIT   STOCK       EQUITY
                          --------- ------ ---------- ---------- ------------- -------  --------  -------------
<S>                       <C>       <C>    <C>        <C>        <C>           <C>      <C>       <C>
Balance, January 1,
 1995...................  9,018,637  $90       --      $20,391       $(163)    $(4,353) $(2,253)     $13,712
Exercise of stock
 options, including tax
 benefits of $279.......    193,815    2       --        1,152         --          --      (381)         773
Issuance of stock to
 401(k) plan............      1,574  --        --           44         --          --        25           69
Issuance of stock to
 industry partner.......    226,655    2       --        2,498         --          --       --         2,500
License payment to
 former subsidiary, net
 of a deferred tax
 benefit of $1,700......        --   --        --       (3,300)        --          --       --        (3,300)
Distribution of
 biotechnology business
 segment................        --   --        --       (2,654)        --          --       --        (2,654)
Payment of stockholders'
 notes receivable.......        --   --        --          --           74         --       --            74
Reclass of stockholders'
 notes receivable.......        --   --        --          --         (100)        --       --          (100)
Net loss (restated).....        --   --        --          --          --       (2,705)     --        (2,705)
                          ---------  ---     -----     -------       -----     -------  -------      -------
Balance, December 31,
 1995 (restated)........  9,440,681   94       --       18,131        (189)     (7,058)  (2,609)       8,369
Exercise of stock
 options, including tax
 benefits of $79........    132,000    2       --          666         --          --       --           668
Issuance of stock to
 401(k) plan............        --   --        --            1         --          --        91           92
Settlement of
 litigation.............        --   --      $ 175         --          --          --       --           175
Tax benefit of license
 payment to former
 subsidiary.............        --   --        --          161         --          --       --           161
Issuance of non-employee
 stock options..........        --   --        --          156         --          --       --           156
Interest earned on
 stockholders' notes....        --   --        --          --          --          --       --           --
Repayment of
 stockholders' notes....        --   --        --          --           75         --       --            75
Net loss (restated).....        --   --        --          --          --         (138)     --          (138)
                          ---------  ---     -----     -------       -----     -------  -------      -------
Balance, December 31,
 1996 (restated)........  9,572,681   96       175      19,115        (114)     (7,196)  (2,518)       9,558
Settlement of
 litigation.............        --   --       (175)       (118)        --          --       243          (50)
Exercise of stock
 options, including tax
 benefits of $7.........     30,000  --        --          122         --          --       (20)         102
Issuance of stock to
 401(k) plan............        --   --        --          (92)        --          --       132           40
Value of non-employee
 stock options..........        --   --        --           47         --          --       --            47
Interest earned on
 stockholders' notes....        --   --        --          --          (10)        --       --           (10)
Reserve on stockholders'
 notes receivable.......        --   --        --          --           94         --       --            94
Net loss................        --   --        --          --          --       (1,453)     --        (1,453)
                          ---------  ---     -----     -------       -----     -------  -------      -------
Balance, December 31,
 1997...................  9,602,681  $96     $ --      $19,074       $ (30)    $(8,649) $(2,163)     $ 8,328
                          =========  ===     =====     =======       =====     =======  =======      =======
</TABLE>
 
   The accompanying notes are an integral part of the consolidated financial
                                  statements.
 
                                       37
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
 Nature of the Business
 
  IGI, Inc. (IGI" or the "Company") is a diversified company engaged in two
business segments.
 
  . Animal Health Business--production and marketing of animal health
    products such as poultry vaccines, veterinary pharmaceuticals, and other
    products, including nutritional supplements and grooming aids; and
 
  . Consumer Products Business--production and marketing of cosmetics and
    skin care products.
 
  IGI is committed to grow by applying its technology to deliver cost
effective solutions to customer problems. IGI solves problems in poultry
production, pet care and consumer and skin care markets. An increasing number
of its solutions are based on the patented Novasome(R) microencapsulation
technology. Licensed from a former subsidiary, the technology offers value-
added qualities to cosmetics, skin care products, chemicals, biocides,
pesticides, fuels, vaccines, medicines, foods, beverages, pet care products
and other products.
 
 Principles of Consolidation
 
  The consolidated financial statements include the accounts of IGI, Inc. and
its wholly-owned and majority-owned subsidiaries. The Company's financial
statements include 100% of the losses through December 12, 1995 of its former
majority-owned subsidiary, Novavax, Inc. ("Novavax"). All intercompany
accounts and transactions have been eliminated. Investment in an affiliated
company with a 20% ownership interest is accounted for on the cost method.
 
 Cash equivalents
 
  Cash equivalents consist of short-term investments with initial maturities
of 90 days or less.
 
 Concentration of Credit Risk
 
  Financial instruments which potentially subject the Company to
concentrations of credit risk are cash, cash equivalents, accounts receivable,
notes receivable and certain restricted investments. The Company limits credit
risk associated with cash and cash equivalents by placing its cash and cash
equivalents with two high credit quality financial institutions. Accounts
receivable include customers in several key geographic areas; of these, Mexico
and other Latin American countries and countries in the Far East are important
markets for the Company's poultry vaccines and other products. These countries
have historically experienced varying degrees of political unrest and/or
currency instability. Because of the volume of business transacted by the
Company in those countries, continuation or recurrence of such unrest or
instability could adversely affect the businesses of its customers in those
countries or the Company's ability to collect its receivables from such
customers, which in either case could adversely impact the Company's future
operating results.
 
 Inventories
 
  Inventories are stated at the lower of cost (last-in, first-out basis) or
market.
 
 Property, Plant and Equipment
 
  Depreciation of property, plant and equipment is provided for under the
straight-line method over the estimated useful lives as follows:
 
<TABLE>
<CAPTION>
                                                                       USEFUL
                                                                        LIVES
                                                                     -----------
    <S>                                                              <C>
    Buildings and improvements...................................... 10-30 years
    Machinery and equipment.........................................  3-10 years
</TABLE>
 
  Repair and maintenance costs are charged to operations as incurred while
major improvements are capitalized. When assets are retired or disposed of,
the cost and accumulated depreciation thereon are removed from the accounts
and any gains or losses are included in operations.
 
                                      38
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
 Amortization
 
  Cost in excess of net assets of businesses acquired, which is included in
other assets, is amortized on a straight-line basis over 40 years. The Company
periodically evaluates the carrying amount of this asset using cash flow
projections and net income and if warranted, impairment would be recognized.
 
 Income Taxes
 
  The Company records income taxes under the provisions of Statement of
Financial Accounting Standards ("SFAS") No. 109, "Accounting for Income
Taxes". SFAS 109 requires the asset and liability method of accounting for
income taxes. Under the asset and liability method, deferred income taxes are
recognized for the tax consequences of "temporary differences" by applying
enacted statutory tax rates applicable to future years to differences between
the financial statement carrying amounts and the tax bases of existing assets
and liabilities. Under SFAS No. 109, the effect on deferred taxes of a change
in tax rates is recognized in income in the period that includes the enactment
date. A valuation allowance is recorded based on a determination of the
ultimate realizability of future deferred tax assets.
 
 Stock-Based Compensation
 
  Compensation costs attributable to stock option and similar plans are
recognized based on any difference between the quoted market price of the
stock on the date of grant over the amount the employee is required to pay to
acquire the stock (the intrinsic value method under Accounting Principles
Board Opinion 25). Such amount, if any, is accrued over the related vesting
period, as appropriate. SFAS No. 123, "Accounting for Stock-Based
Compensation," requires companies electing to continue to use the intrinsic-
value method to make pro forma disclosures of net income and earnings per
share as if the fair-value-based method of accounting had been applied.
 
 Long-lived Assets
 
  Effective January 1, 1996, the Company adopted SFAS No. 121, "Accounting for
the Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed
Of". The provisions of SFAS No. 121 require the Company to review its long-
lived assets for impairment on an exception basis whenever events or changes
in circumstances indicate that the carrying amount of the asset may not be
recoverable through future cash flows. If it is determined that an impairment
has occurred based on expected future cash flows, then the loss is recognized
in the income statement. The adoption of SFAS No. 121 did not have an effect
on the Company's consolidated financial statements.
 
 Financial Instruments
 
  The Company's financial instruments include cash and cash equivalents,
accounts receivable, notes receivable, restricted common stock and long-term
debt. The carrying value of these instruments approximates the fair value.
 
 Use of Estimates
 
  The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Significant estimates include allowances for excess and
obsolete inventories, allowances for doubtful accounts and other assets and
provisions for income taxes and related valuation allowances. Actual results
could differ from those estimates.
 
                                      39
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
 Accounting Standards Changes
 
  In March 1997, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards (SFAS) No. 128, "Earnings Per
Share". This Statement establishes standards for computing and presenting
earnings per share (EPS) and applies to entities with publicly held common
stock or potential common stock. This Statement is effective for financial
statements issued for periods ending after December 15, 1997. The Company has
restated all prior-period EPS data presented as required by SFAS No. 128.
 
  In June 1997, the FASB issued SFAS No. 130, "Reporting Comprehensive
Income". This Statement establishes standards for reporting all components of
comprehensive income. This Statement is effective for financial statements
issued for periods ending after December 15, 1998. The Company is currently
evaluating the impact, if any, adoption of SFAS No. 130 will have on its
financial statements.
 
  In June 1997, the FASB issued SFAS No. 131, "Disclosure about Segments of an
Enterprise and Related Information," which revises disclosure requirements
related to operating segments, products and services, the geographic areas in
which the Company operates and major customers. The Company intends to adopt
this Statement in fiscal 1998 and does not presently anticipate any material
change in its disclosures.
 
 Revenue Recognition
 
  Sales are recorded upon shipment of products. Revenues earned under research
contracts or licensing and supply agreements are recognized when the related
contract provisions are met.
 
 Reclassification
 
  Certain previously reported amounts have been reclassified to conform with
the current period presentation.
 
2. RESTATEMENT OF PRIOR PERIODS
 
  On March 27, 1998, the Board of Directors engaged special counsel to
investigate information first made known to it on March 17, 1998 which it
believed could have a material impact on the Company's financial reporting for
1997 and prior periods. As a result of the findings of the special
investigation initiated by the Board of Directors in March 1998, the Company
restated its consolidated financial statements for 1995 and 1996. In the
opinion of management, all material adjustments necessary to correct the
financial statements have been recorded.
 
  The restatements reflect inventory write-offs and inventory adjustments
which should have been recorded in different periods. Also reflected are
changes in the time periods in which certain product shipments were recognized
as sales.
 
                                      40
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  A summary of the impact of such restatements on the financial statements for
the years ended December 31, 1995 and 1996 is as follows:
 
<TABLE>
<CAPTION>
                                              YEAR ENDED DECEMBER 31,
                                     ------------------------------------------
                                             1996                  1995
                                     --------------------  --------------------
                                     AS REPORTED RESTATED  AS REPORTED RESTATED
                                     ----------- --------  ----------- --------
                                          (IN THOUSANDS, EXCEPT PER SHARE
                                                   INFORMATION)
<S>                                  <C>         <C>       <C>         <C>
Net sales..........................    $35,140   $34,785     $31,221   $30,501
Income (loss) from continuing
 operations........................         93      (138)      1,508     1,329
Net income (loss)..................         93      (138)     (2,526)   (2,705)
Income (loss) per common and common
 equivalent share:
  Basic:
    From continuing operations.....    $   .01   $  (.01)    $   .16   $   .14
    Net income (loss)..............    $   .01   $  (.01)    $  (.28)  $  (.29)
  Diluted:
    From continuing operations.....    $   .01   $  (.01)    $   .16   $   .14
    Net income (loss)..............    $   .01   $  (.01)    $  (.26)  $  (.28)
</TABLE>
 
  See Note 18 for discussion of the impact of the restatements on each of the
three quarters in the nine months ended September 30, 1997.
 
3.  CORPORATE ACTIVITIES
 
 Distribution of Biotechnology Segment
 
  On March 17, 1994, IGI's Board of Directors voted to dispose of the
biotechnology business segment through the tax-free distribution to IGI's
shareholders of its ownership of Novavax.
 
  On December 12, 1995, (the "Distribution Date"), IGI distributed to the
holders of record of IGI's common stock, at the close of business on November
28, 1995, one share of common stock of Novavax for every one share of IGI
common stock outstanding (the "Distribution").
 
  In connection with the Distribution, the Company paid Novavax $5,000,000 in
return for a fully-paid-up, ten-year license entitling it to the exclusive use
of Novavax's technologies in the fields of (i) animal pharmaceuticals,
biologicals, and other animal health products; (ii) foods, food applications,
nutrients and flavorings; (iii) cosmetics, consumer products and
dermatological over-the-counter and prescription products (excluding certain
topically delivered hormones); (iv) fragrances; and (v) chemicals, including
herbicides, insecticides, pesticides, paints and coatings, photographic
chemicals and other specialty chemicals; and the processes for making the
same. The Company has the option, exercisable within the last year of the ten-
year term, to extend the License Agreement for an additional ten-year period
for $1,000,000. Novavax retained the right to use its Novavax Technologies for
all other applications, including human vaccines and pharmaceuticals. At the
time the terms of the IGI License Agreement were fixed, including the license
payment, all of the directors of IGI were also directors of Novavax and these
terms were unilaterally established by IGI. As of December 31, 1995, three
directors of IGI were also directors of Novavax. Accordingly, the Company
accounted for the payment under the License Agreement as a capital
contribution in its financial statements to reflect the intercompany nature
and substance of the transaction. The form was structured as a prepaid license
agreement to address various considerations of the Distribution, including tax
and financing considerations. For tax purposes, the transaction is being
treated as a prepaid license agreement. IGI has no further obligations or
intentions to fund Novavax.
 
                                      41
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  Components of the losses from discontinued operations for the period ended
December 31, 1995 were:
 
<TABLE>
<CAPTION>
                                                                       1995
                                                                  --------------
                                                                  (IN THOUSANDS)
     <S>                                                          <C>
     Selling, general and administrative.........................    $ 2,103
     Research and development expenses, net......................      3,648
     Credit for income taxes.....................................       (717)
                                                                     -------
     Operating losses............................................      5,034
     Less accrual for loss on disposal at December 31, 1994......     (1,000)
                                                                     -------
     Net loss from discontinued operations.......................    $ 4,034
                                                                     =======
</TABLE>
 
  The Company anticipated the effective date of the Distribution to be June
30, 1995. Due to delays in the final distribution of Novavax, the Company
incurred costs in excess of the $1,000,000 estimated loss of disposal of its
biotechnology business segment. These costs related to increased research and
development expenses for products in the initial FDA approval process.
 
  The distribution of the net assets of the Company's biotechnology business
segment as of the Distribution Date were recorded in the accompanying
financial statements in 1995 as a reduction in additional paid-in capital.
 
 Equity and Other Transactions
 
  In connection with an agreement with an industry partner for the testing of
Novavax's patented Novasome lipid vesicle encapsulation technology as a
microcarrier and adjuvant for various human vaccines, in January 1995, the
partner exercised its option to purchase 226,655 shares of the Company's
common stock for $2,500,000, and received an option to purchase additional
shares of IGI Common Stock and Novavax Common Stock. This option expired
unexercised in 1996.
 
4. INVESTMENTS
 
  The Company has a 20% investment in Indovax, Ltd. an Indian poultry vaccine
company which is accounted for on the cost method. Dividends received from
Indovax were $23,000 in 1997. Other investments include 271,714 shares of
restricted common stock of IMX Corporation ("IMX"), a publicly traded company,
valued at a cost of $3.50 per share, received pursuant to an Exclusive Supply
Agreement dated September 30, 1997 between the Company and IMX. These shares
are restricted both by governmental and contractual requirements and the
Company is unsure when and if it will be able to sell these shares. The
Company will recognize income related to this agreement over the term of the
supply agreement. The total investment in IMX stock is valued at $951,000 at
December 31, 1997. Deferred revenue under this agreement is also $951,000 at
December 31, 1997.
 
  Under the supply agreement, IGI has agreed to manufacture and supply 100% of
IMX's requirements for certain products at prices stipulated in the agreement,
subject to renegotiation subsequent to 1998. The Company is currently
renegotiating its agreement with IMX. No shipments were made by IGI during
1997, and the first shipment of product is expected in 1998.
 
5. SUPPLY AND LICENSING AGREEMENTS
 
  In 1996, the Company entered into a license and supply agreement with Glaxo
Wellcome, Inc. ("Glaxo"). The agreement granted Glaxo exclusive rights to
market a skin care product line in the United States to
 
                                      42
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
physicians including, but not limited to, dermatologists. Under the terms of
the agreement, IGI manufactures these products for Glaxo. This agreement
provides for Glaxo to pay royalties to IGI based on sales and pay a $1,000,000
advance royalty to IGI in 1997 of which $300,000 is non-refundable. The
advance royalty has been recorded as deferred revenue. During 1997, IGI
recognized $150,000 of the non-refundable royalty as income.
 
  In March 1997, IGI granted Kimberly Clark the worldwide rights to use
certain patents and technologies in the industrial hand care and cleaning
products field. Upon signing of the agreement, Kimberly Clark paid IGI a
$100,000 license fee which was recognized as revenue by the Company in 1997.
The agreement requires Kimberly Clark to make royalty payments based on
quantities of material produced. The Company is also guaranteed minimum
royalties over the term of the agreement.
 
  The Company has had a license agreement with Johnson & Johnson Consumer
Products, Inc. ("J&J") since 1995. The agreement provides J&J with a license
to produce and sell Novasome(R) microencapsulated retinoid products and
provides for the payment of royalties on net sales of such products. J&J began
selling such products in the first quarter of 1998 and has begun making
royalty payments.
 
6. SUPPLEMENTAL CASH FLOW INFORMATION
 
  Cash paid for income taxes and interest during the years ended December 31,
1997, 1996, and 1995 was as follows:
 
<TABLE>
<CAPTION>
                                                           1997    1996   1995
                                                          ------  ------ ------
                                                             (IN THOUSANDS)
     <S>                                                  <C>     <C>    <C>
     Income taxes paid, net.............................. $  (33) $   41 $    3
     Interest............................................  1,853   1,955  1,236
</TABLE>
 
  In addition, during the years ended December 31, 1997, 1996, and 1995, the
Company had the following non-cash financing and investing activities:
 
<TABLE>
<CAPTION>
                                                             1997  1996    1995
                                                             ---- ------  ------
                                                               (IN THOUSANDS)
     <S>                                                     <C>  <C>     <C>
     Tax benefits of exercise of common stock options....... $  7 $   79  $  279
     Distribution of the biotechnology segment..............  --     --    2,904
     Treasury stock repurchased.............................   20    --      356
     Tax benefit of license payment to former subsidiary....  --    (161)    --
     Receivable under royalty agreement.....................  --   1,000     --
     Investment in IMX......................................  951    --      --
</TABLE>
 
7. INVENTORIES
 
  Inventories as of December 31, 1997 and 1996 consisted of:
 
<TABLE>
<CAPTION>
                                                                1997     1996
                                                               ------ ----------
                                                                      (RESTATED)
                                                                (IN THOUSANDS)
     <S>                                                       <C>    <C>
     Finished goods........................................... $3,365   $3,280
     Raw materials............................................  3,259    2,812
     Work-in-process..........................................  3,192    2,975
                                                               ------   ------
                                                               $9,816   $9,067
                                                               ======   ======
</TABLE>
 
  If the first-in, first-out (FIFO) method of accounting for inventories had
been used, inventories would have been $461,000 and $844,000 lower than
reported in 1997 and 1996, respectively.
 
                                      43
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
8. LONG-TERM DEBT
 
  Long-term debt as of December 31, 1997 and 1996 consisted of:
 
<TABLE>
<CAPTION>
                                                                   1997   1996
                                                                  ------ -------
                                                                  (IN THOUSANDS)
     <S>                                                          <C>    <C>
     Revolving credit facility..................................  $6,857 $10,285
     Other debt due in annual installments through December 1999
      with interest at 9%.......................................      36      51
                                                                  ------ -------
                                                                   6,893  10,336
     Less current maturities....................................   6,857   3,443
                                                                  ------ -------
                                                                  $   36 $ 6,893
                                                                  ====== =======
</TABLE>
 
  During the first quarter of 1998, the Company negotiated amendments to its
credit agreement with its bank lenders, including waivers of its covenant
defaults and an extension of the credit agreement since the Company was in
default under certain covenants contained in its bank credit agreement during
1997 and at December 31, 1997. During the period from January 1, 1998 through
April 29, 1998, the Company paid interest at a rate of prime plus 4% on
outstanding borrowings under its working capital line and prime plus 4% on
outstanding borrowings under its revolving credit facility. The Company
entered into an Extension Agreement with its bank lenders as of April 29, 1998
(the "Closing Date") which provides for the waiver of all past and existing
covenant defaults, extension of the bank credit agreement through March 31,
1999, a maximum credit line facility of $12,000,000 ("Credit Line") and
extended terms for repayment of the outstanding $6,857,142 balance of
revolving credit notes ("Revolving Facility").
 
  The Company was in default under certain covenants contained in the
Extension Agreement at July 31, 1998. On August 19, 1998, the Company and its
bank lenders entered into a Forbearance Agreement whereby the banks agreed to
forbear from exercising their rights and remedies arising from these covenant
defaults through January 31, 1999.
 
  The Extension Agreement and the Forbearance Agreement (the "Agreements")
provide for the following:
 
  . The maximum availability under the Credit Line is subject to the
    determination of the amount of eligible accounts receivable and eligible
    inventories. The Credit Line is due and payable in full on January 31,
    1999.
 
  . The outstanding balance of $6,857,142 under the Revolving Facility is due
    and payable on January 31, 1999.
 
  . All of the Company's indebtedness to the banks is subject to a security
    interest in all of the assets of the Company and its significant
    subsidiaries.
 
  . Interest on outstanding borrowings under both the Credit Line and the
    Revolving Credit Facility will be:
 
<TABLE>
    <S>                                                        <C>
    From August 1, 1998 through September 30, 1998............ Prime plus 3 1/2%
    From October 1, 1998 through November 30, 1998............ Prime plus 4 1/2%
    From December 1, 1998 through January 31, 1999............ Prime plus 5 1/2%
</TABLE>
 
  . At the Closing Date the Company issued to the lenders warrants to
    purchase an aggregate of 540,000 shares of the Company's common stock at
    an exercise price of $3.50 per share. Warrants ("Unconditional Warrants")
    to purchase 270,000 shares are exercisable at any time during the period
    commencing 60 days
 
                                      44
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
   after issuance and ending on the fifth anniversary of issuance, unless the
   Company is able to refinance its bank debt by October 31, 1998 in which
   case these warrants expire. Warrants ("Conditional Warrants") to purchase
   the remaining 270,000 shares are exercisable at any time during the period
   commencing September 1, 1998 and ending on the fifth anniversary of
   issuance, unless the Company is able to refinance its bank debt by
   December 24, 1998 in which case these warrants expire. The Company has a
   call option on the warrants, which can only be exercised as to all of the
   shares issuable at that time, with a repurchase price of $900,000 for each
   of the Conditional Warrants and Unconditional Warrants. The Company will
   recognize a non-cash expense of approximately $200,000, or $.02 per share,
   net of taxes, (unaudited) in each of the second and third quarters of 1998
   in accordance with Statement for Financial Accounting Standards No. 123.
 
  . The Company agreed to pay Fleet Bank, as agent on behalf of the lenders,
    a monthly agent's fee of $5,000 and an extension fee of $250,000, of
    which $60,000 was paid at the time of the Extension, with the balance
    payable in three installments through March 24, 1999.
 
  . The Company agreed to pay Fleet Bank, as agent on behalf of the lenders,
    a forbearance fee of $140,000, of which $20,000 was paid at the time of
    the forbearance, and the balance is payable in three installments through
    January 15, 1999. However, if the Company is able to replace its existing
    bank debt within the 30 days following a forbearance fee due date, the
    installment then due plus all future installments shall be waived.
 
  The Agreements require the Company to maintain certain financial ratios and
comply with other non-financial covenants, including remittance of cash flows
from debt or equity financing, income tax refunds and fixed asset dispositions
to the banks, and also prohibits the payment of cash dividends without the
prior written consent of the lenders. The Company believes it will be able to
remain in compliance with its debt covenants through January 30, 1999, and
also believes that funds generated from operations and existing bank credit
facilities are sufficient to finance the Company's operations at its current
levels, including the costs associated with the regulatory and litigation
matters discussed in Notes 12 and 13, through January 30, 1999.
 
  The Company is actively seeking, and believes it will be able to secure,
alternative financing arrangements to replace its existing debt and lending
terms through a number of potential options including, but not limited to, the
issuance of debt or equity securities or a combination of both. The Company
plans to engage an investment banker for the purpose of formulating
alternative business strategies and to coordinate the orderly satisfaction of
its obligations. No assurance can be given that the Company will be able to
obtain alternative financing arrangements, and if it is unsuccessful in doing
so, the Company may be required to restrict its business operations or
otherwise modify its business strategy.
 
  Aggregate annual principal payments on long-term debt for the years
subsequent to December 31, 1997 are as follows:
 
<TABLE>
<CAPTION>
            YEAR
            ----
                                           (IN THOUSANDS)
            <S>                            <C>
            1998..........................     $2,316
            1999..........................      4,577
                                               ------
                                               $6,893
                                               ======
</TABLE>
 
  Borrowings under the revolving credit facility have been classified as
current debt in the accompanying financial statements as the agreement
contains certain acceleration provisions subject to the bank's evaluation.
 
  As of December 31, 1997 and 1996, there were no outstanding equipment
leases.
 
9. STOCK OPTIONS
 
  Under the 1983 Incentive Stock Option Plan, options have been granted to key
employees to purchase a maximum of 500,000 shares of common stock. Options,
having a maximum term of 10 years, have been granted
 
                                      45
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
at 100% of the fair market value of the Company's stock at the time of grant.
Options outstanding under this plan at December 31, 1996 are generally
exercisable in cumulative increments over four years commencing one year from
the date of grant.
 
  Under the 1989 and 1991 Stock Option Plans, options may be granted to key
employees, directors and consultants to purchase a maximum of 500,000 and
2,600,000 shares of common stock, respectively. Options, having a maximum term
of 10 years, have been granted at 100% of the fair market value of the
Company's stock at the time of grant. Both incentive stock options and non-
qualified stock options may be granted under the 1989 Plan and the 1991 Plan.
Incentive stock options are generally exercisable in cumulative increments
over four years commencing one year from the date of grant. Non-qualified
options are generally exercisable in full beginning six months after the date
of grant.
 
  In 1991, the Company's Board of Directors also adopted a Non-Qualified Stock
Option Plan. This plan provides that options may be granted to consultants,
scientific advisors and employees to purchase a maximum of 250,000 shares of
common stock. Options outstanding under this plan at December 31, 1997 are
generally exercisable in cumulative increments over four years commencing one
year from the date of grant.
 
  In addition, non-qualified stock options have been granted to officers and
directors at prices equal to the fair market value of the Company's stock on
the date the options were granted. Exercise of the majority of these options
may be made at any time during a ten year period commencing on the date of
grant.
 
  Stock option transactions in each of the past three years under the
aforementioned plans in total were:
 
<TABLE>
<CAPTION>
                                           PLAN                              NON-QUALIFIED PLAN
                          ---------------------------------------- ---------------------------------------
                                                       WEIGHTED                                WEIGHTED
                           SHARES    PRICE PER SHARE AVERAGE PRICE  SHARES   PRICE PER SHARE AVERAGE PRICE
                          ---------  --------------- ------------- --------  --------------- -------------
<S>                       <C>        <C>             <C>           <C>       <C>             <C>
January 1, 1995 shares
 under option...........  1,793,528   $1.30--$9.88       $6.63      340,552   $1.38--$6.80       $4.37
 Granted................    346,500   $6.63--$9.39       $7.35          --             --          --
 Exercised..............   (190,763)  $1.30--$9.88       $3.73       (3,052)         $1.38       $1.38
 Cancelled..............     (9,750)  $6.72--$9.72       $7.47          --             --          --
                          ---------                                --------
December 31, 1995 shares
 under option...........  1,939,515   $3.64--$9.88       $7.04      337,500   $1.38--$6.80       $4.40
 Granted................    381,000   $5.13--$7.69       $6.04          --             --          --
 Exercised..............    (82,000)  $4.70--$6.96       $6.33      (50,000)         $1.38       $1.38
 Cancelled..............    (29,500)  $5.67--$9.48       $7.31       (1,000)         $6.80       $6.80
                          ---------                                --------
December 31, 1996 shares
 under option...........  2,209,015   $3.65--$9.88       $6.89      286,500   $3.97--$6.80       $4.92
 Granted................    111,500   $3.75--$5.69       $4.17          --             --          --
 Exercised..............    (10,000)         $3.65       $3.65      (20,000)         $3.97       $3.97
 Cancelled..............   (176,050)  $3.97--$9.88       $7.21     (100,000)         $5.67       $5.33
                          ---------                                --------
December 31, 1997 shares
 under option...........  2,134,465   $3.75--$9.88       $6.74      166,500   $4.70--$6.80       $4.78
                          =========                                ========
Shares subject to
 outstanding options
 exercisable at
 December 31, 1996......  1,666,119                      $7.01      286,500                      $4.92
                          =========                      =====     ========                      =====
 December 31, 1997......  1,854,715                      $6.89      166,500                      $4.78
                          =========                      =====     ========                      =====
</TABLE>
 
  The Company adopted the disclosure provisions of SFAS No. 123, "Accounting
for Stock-Based Compensation." Accordingly, no compensation cost has been
recognized for option grants to directors and employees pursuant to the stock
option plans. The Company has recorded compensation expense of $ 46,000 and
$156,000 in 1997 and 1996, respectively, for options granted to consultants.
Had compensation cost for all
 
                                      46
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
grants under the Company's stock option plans been determined on fair value at
the grant date consistent with the provisions of SFAS 123, the Company's net
loss and loss per share would have been increased to the pro forma loss
amounts indicated below:
 
<TABLE>
<CAPTION>
                                                   1997       1996      1995
                                                  -------  ---------- ---------
                                                           (RESTATED) (RESTATED)
                                                     (IN THOUSANDS, EXCEPT
                                                     PER SHARE INFORMATION)
     <S>                                          <C>      <C>        <C>
     Net loss--as reported....................... $(1,453)  $  (138)   $(2,705)
     Net loss--pro forma......................... $(1,648)  $(1,054)   $(3,449)
     Loss income per share--as reported
       Basic..................................... $  (.15)  $  (.01)   $  (.29)
       Diluted................................... $  (.15)  $  (.01)   $  (.28)
     Loss per share--pro forma
       Basic..................................... $  (.17)  $  (.11)   $  (.38)
       Diluted................................... $  (.17)  $  (.11)   $  (.35)
</TABLE>
 
  The pro forma information has been determined as if the Company had
accounted for its employee stock options under the fair value method of SFAS
123. The fair value for these options was estimated at the grant date using
the Black-Scholes option pricing model with the following assumptions for
1997, 1996 and 1995:
 
<TABLE>
     <S>                                                         <C>
     Dividend yield.............................................     0%
     Risk free interest rate....................................  5.51%-- 7.10%
     Estimated volatility factor................................ 33.07%--43.45%
     Expected life..............................................     6-- 9 years
</TABLE>
 
  The effects of applying SFAS 123 in this pro forma disclosure are not
indicative of future amounts. SFAS 123 does not apply to awards prior to 1995,
and additional awards in future years are anticipated.
 
  The following table summarizes information concerning outstanding and
exercisable options as of December 31, 1997.
 
<TABLE>
<CAPTION>
                            OPTIONS OUTSTANDING               OPTIONS EXERCISABLE
                 ----------------------------------------- --------------------------
   RANGE OF      NUMBER OF    WEIGHTED AVERAGE    EXERCISE NUMBER OF WEIGHTED AVERAGE
EXERCISE PRICES   OPTIONS  REMAINING LIFE (YEARS)  PRICE    OPTIONS   EXERCISE PRICE
- ---------------  --------- ---------------------- -------- --------- ----------------
<S>              <C>       <C>                    <C>      <C>       <C>
   $3.00 to
   $ 4.00           60,000         10.00           $3.75         --         --
   $4.00 to
   $ 5.00          358,000          2.87           $4.73     308,000      $4.75
   $5.00 to
   $ 6.00          511,500          6.51           $5.52     429,750      $5.48
   $6.00 to
   $ 7.00          580,750          6.93           $6.68     525,750      $6.68
   $7.00 to
   $ 8.00          331,000          5.54           $7.40     327,250      $7.39
   $8.00 to
   $ 9.00          284,000          7.25           $8.50     255,500      $8.49
   $9.00 to
   $10.00          175,715          4.97           $9.62     174,965      $9.62
                 ---------                                 ---------
   $3.75 to
   $ 9.88        2,300,965          5.97           $6.59   2,021,215      $6.73
                 =========                                 =========
</TABLE>
 
  In connection with the Distribution, holders of options to purchase IGI
common stock as of the Distribution Date were granted options to purchase
Novavax common stock and substitute options to purchase IGI common stock.
Exercise prices of the options were based on the relative market
capitalization of IGI and Novavax on the record date and the 20 trading days
immediately following the record date to restore holders of each option to the
economic position prior to the Distribution Date. The prices related to stock
option transactions have been adjusted to reflect the terms of the substitute
options.
 
                                      47
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  In connection with the exercise of 5,000 stock options in 1997 and 25,000
stock options in 1995, the Company received 4,735 and 23,644 shares of its
common stock in 1997 and 1995, respectively, as consideration for the exercise
price of the options. The total value of the shares used as consideration for
the exercise of stock options was $19,825 and $381,250 in 1997 and 1995,
respectively, which has been recorded as treasury stock.
 
10. INCOME TAXES
 
  The provision (benefit) for income taxes included in the consolidated
statements of operations for the years ended December 31, 1997, 1996 and 1995
is as follows:
 
<TABLE>
<CAPTION>
                                                            1997   1996   1995
                                                            -----  -----  -----
                                                             (IN THOUSANDS)
   <S>                                                      <C>    <C>    <C>
   Continuing operations:
     Current tax expense:
       Federal............................................. $ --   $ --   $ 718
       State and local.....................................    11      9      4
                                                            -----  -----  -----
     Total current.........................................    11      9    722
                                                            -----  -----  -----
     Deferred tax expense (benefit)
       Federal.............................................  (756)   (28)   (59)
       State and local.....................................   171   (161)  (150)
                                                            -----  -----  -----
     Total deferred........................................  (585)  (189)  (209)
                                                            -----  -----  -----
   Total provision (benefit) from continuing operations....  (574)  (180)   513
   Discontinued operations:
     Current tax benefit:
       Federal and state...................................   --     --    (718)
                                                            -----  -----  -----
   Total provision (benefit) for income taxes.............. $(574) $(180) $(205)
                                                            =====  =====  =====
</TABLE>
 
  The provision for income taxes differed from the amount of income taxes
determined by applying the applicable Federal tax rate (34%) to pretax income
from continuing operations as a result of the following:
 
<TABLE>
<CAPTION>
                                                             1997   1996   1995
                                                             -----  -----  ----
                                                              (IN THOUSANDS)
   <S>                                                       <C>    <C>    <C>
   Statutory provision (benefit)............................ $(689) $(108) $626
   Non-deductible expenses..................................    51     66    66
   State income taxes, net of federal benefit...............   120   (101)  (99)
   Research and development tax credits.....................   (65)   (42)  (33)
   Increase (decrease) in valuation allowance...............     7    --    (83)
   Other, net...............................................     2      5    36
                                                             -----  -----  ----
                                                             $(574) $(180) $513
                                                             =====  =====  ====
</TABLE>
 
                                      48
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  Deferred tax assets included in the consolidated balance sheets as of
December 31, 1997 and 1996, consist of the following:
 
<TABLE>
<CAPTION>
                                                               1997     1996
                                                              -------  -------
                                                              (IN THOUSANDS)
     <S>                                                      <C>      <C>
     Property, plant and equipment........................... $  (633) $  (763)
     Prepaid license agreement...............................   1,626    1,797
     Net operating loss carryforwards........................   1,616    1,562
     Deferred royalty payments...............................     345      --
     Tax credit carryforwards................................     484      418
     Inventory...............................................     238      158
     Valuation allowances....................................     500      140
     Non-employee stock options..............................      82       62
     Other future deductible temporary differences...........      98       56
     Other future taxable temporary differences..............     (48)     (13)
                                                              -------  -------
                                                                4,308    3,417
     Less: valuation allowance...............................    (333)     (34)
                                                              -------  -------
     Deferred taxes, net..................................... $ 3,975  $ 3,383
                                                              =======  =======
</TABLE>
 
  Current and deferred tax benefits resulting from a prepaid license agreement
and the exercise of stock options not credited to the consolidated statements
of operations for the years ended December 31, 1997, 1996 and 1995, including
the following:
 
<TABLE>
<CAPTION>
                                                              1997  1996  1995
                                                              ----- ---- ------
                                                               (IN THOUSANDS)
     <S>                                                      <C>   <C>  <C>
     Additional paid-in capital:
       License payment to former subsidiary.................. $ --  $161 $1,700
       Exercise of stock options.............................     7   79    279
                                                              ----- ---- ------
                                                              $   7 $240 $1,979
                                                              ===== ==== ======
</TABLE>
 
  The Company evaluates the recovery of its deferred tax assets and has
determined, based on the Company's history of prior operating earnings, its
expectations for the future, the timing of reversal of certain temporary
differences, and the expiration dates of the net operating loss carryforwards,
that operating income of the Company will more likely than not be sufficient
to recognize fully these net deferred tax assets.
 
  Operating loss and tax credit carryforwards for tax reporting purposes as of
December 31, 1997 are as follows:
 
<TABLE>
<CAPTION>
                                                                 (IN THOUSANDS)
     <S>                                                         <C>
     Federal:
       Operating losses (expiring through the year 2011)........     $4,727
       Research tax credits (expiring through the year 2011)....        511
       Alternative minimum tax credits (available without
        expiration).............................................         14
</TABLE>
 
                                      49
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
11. COMMITMENT AND CONTINGENCIES
 
  The Company leases manufacturing and warehousing space, machinery and
equipment and automobiles under non-cancelable operating lease agreements
expiring at various dates through 1998. Rental expense aggregated
approximately $348,000 in 1997, $330,000 in 1996, and $282,000 in 1995. Future
minimum rental commitments under non-cancelable operating leases as of
December 31, 1997 are as follows:
 
<TABLE>
<CAPTION>
                    YEAR                                                  $
                    ----                                               -------
                                        (IN THOUSANDS)
                  <S>                                                  <C>
                      1998                                                  99
                      1999                                                  80
                      2000                                                  55
                      2001                                                  47
                      2002                                                  46
</TABLE>
 
  The Company has entered into an employment contract with an expiration date
of December 31, 1999 with an officer which provides that this officer is
entitled to continuation of his salary if he is terminated without cause prior
to the contract expiration date. Aggregate compensation through 1999 under
this agreement approximates $845,000.
 
12. LITIGATION
 
  The Company commenced a lawsuit on April 21, 1998 against its former
President and Chief Operating Officer, John P. Gallo, in the Superior Court of
New Jersey. In its complaint, IGI alleges, among other matters, that Mr. Gallo
caused the Company to violate Department of Agriculture statutes and
regulations, made false and inaccurate representations with respect to
shipments and inventory, improperly converted Company funds and assets for his
personal benefit and knowingly engaged in misconduct in the performance of his
duties and responsibilities, all in violation of his employment agreement and
of his fiduciary duty to the Company. The Company is seeking recovery of
damages resulting from Mr. Gallo's alleged misconduct and recovery of funds
and assets that the Company alleges were improperly diverted by him.
 
  On April 28, 1998, Mr. Gallo commenced a lawsuit against the Company and two
of its Directors, including the Company's Chairman of the Board, Dr. Edward B.
Hager, alleging, among other matters, that they improperly caused the
termination of his employment with the Company in November 1997, wrongfully
terminated his compensation in violation of his employment agreement and
defamed his reputation. Mr. Gallo is seeking recovery against the defendants
for his alleged actual damages as well as consequential and punitive damages.
The Company has denied Mr. Gallo's allegations and believes his claims are
without merit.
 
  Certain other claims, suits and complaints arising in the ordinary course of
business have been filed or are pending against the Company and its
subsidiaries. In the opinion of management, after consultation with legal
counsel, all such matters are adequately covered by insurance or, if not so
covered, are without merit or are of such kind, or involve such amounts, as
would not have a significant effect on the financial statements of the Company
if disposed of unfavorably.
 
                                      50
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
13. U.S. GOVERNMENT INVESTIGATION AND DISCIPLINARY PROCEEDINGS
 
  From June 4, 1997 through March 27, 1998, the Company was subject to an
order by the Center for Veterinary Biologics ("CVB") of the United States
Department of Agriculture ("USDA") to stop distribution and sale of certain
serials and subserials of designated poultry vaccines produced by the
Company's Vineland Laboratories Division ("Stop Shipment Order"). The Stop
Shipment Order was based on CVB's findings that the Company shipped serials
before the Animal and Plant Health Inspection Service division of the USDA
("APHIS") had the opportunity to confirm the Company's testing results, failed
to destroy serials reported to APHIS as destroyed, and in general failed to
keep complete and accurate records and to submit accurate reports to APHIS.
The Stop Shipment Order affected 36 of the Company's USDA-licensed vaccines.
In July 1997, the Office of Inspector General of the USDA ("OIG") advised the
Company of its commencement of an investigation into alleged violations of the
Virus Serum Toxin Act and alleged false statements made to APHIS.
 
  Following the Stop Shipment Order and the commencement of the OIG
investigation, in July 1997, the non-employee members of the Board of
Directors directed the Company to retain special counsel to investigate the
alleged violations and to advise the Board of Directors of its findings. The
non-employee members of the Board of Directors also instructed management to
take immediate action to assure that all future shipments comply with all
regulatory requirements. In addition, the Company took action designed to
obtain the approval of APHIS to the Company's resumption of shipments of the
products affected by the Stop Shipment Order, including submission of an
amended regulatory compliance program and testing procedures acceptable to the
USDA, reassignment of certain personnel and restructuring of the quality
control and quality assurance functions.
 
  Based on remedial action taken by the Company, including revised vaccine
production outlines, the USDA, during the period from August through December
of 1997, lifted the Stop Shipment Order with respect to all but three of the
36 affected products. As of March 27, 1998, the remaining three products were
released for sale and shipment by the Company.
 
  As a result of the Company's internal investigation regarding the alleged
violations, in November 1997 the Company terminated the employment of its then
President and Chief Operating Officer, John P. Gallo, for willful misconduct
in the performance of his executive duties and commenced a lawsuit against Mr.
Gallo on April 21, 1998. On April 28, 1998, Mr. Gallo commenced a lawsuit
against the Company and two of its directors, including the Chairman of the
Board. In addition, six employees, including members of the Company's
management team (including two Vice Presidents of the Company) resigned in
April 1998 at the request of the Company. However, five of these former
employees were retained by the Company for approximately eight weeks to enable
the Company to continue its operations pending the hiring of qualified
replacements. In connection with the employee terminations, the Company agreed
to make severance payments to each of two non-management employees equal to
four months salary.
 
  In April 1998, the Company voluntarily disclosed to the U.S. Attorney for
the District of New Jersey, as well as to the USDA and OIG, information
resulting from its internal investigation of alleged violations by certain
officers and employees of USDA rules and regulations and of the Virus Serum
Toxin Act and other statutes including U.S. Customs laws and regulations. In
connection with its investigation, the OIG has subpoenaed Company documents
and the Company has provided, and will continue to provide, subpoenaed
documents to Governmental authorities. The U.S. Government's investigation is
ongoing and could be expanded to other areas of the Company's business in
which violations of laws and regulations may be found to have occurred. In
addition, the Government's ongoing investigation could result in action
against the Company and certain of its former employees, including fines and
the possibility of criminal charges. Also, on April 30, 1998, the Securities
and Exchange Commission (the "SEC") advised the Company that it is conducting
an informal inquiry and requested that the Company provide it with certain
documents.
 
                                      51
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  The Stop Shipment Order adversely affected the Company's results of
operations for 1997, and the delay in approval of the remaining affected
products until the end of March 1998 will adversely affect overall sales
revenue in 1998. In addition, although the Company, on May 11, 1998, announced
the employment of a new President and Chief Operating Officer, it needs to
replace and train certain key managers and other employees who have terminated
their employment at the request of the Company, which will have a materially
adverse effect on the Company's 1998 performance and operating results. Also,
if the OIG, the U.S. Attorney or the SEC concludes that the Company's actions
warrant enforcement proceedings, those proceedings, as well as the costs and
expenses related to them, could have a materially adverse effect on the
Company's business, financial condition and results of operations.
 
  The Company is cooperating fully with the U.S. Attorney and each of the
regulatory agencies and has produced a substantial amount of documents and
information requested by the U.S. Attorney. The U.S. Attorney has not
indicated what course of action, if any, it may pursue with respect to IGI in
light of the Company's extensive cooperation. The Company has not been advised
that it or any of its present employees are targets of any Justice Department
or regulatory investigation. Although there can be no assurance as to the
outcome of any proceeding, the Company expects that it will be able to achieve
a satisfactory resolution of its existing regulatory and litigation matters.
However, if charges were to be brought against IGI, the Company could incur
substantial costs in fines and attorney's fees to defend the action. The
Company could also face additional substantial costs in administrative civil
penalties. Since the Company expects that it will be able to achieve a
satisfactory resolution of its existing regulatory and litigation matters, no
reserves were provided for these matters at December 31, 1997.
 
14. EXPORT SALES
 
  Export revenues by the Company's domestic operations accounted for
approximately 35% of the Company's total revenues in 1997, 39% in 1996 and 38%
in 1995. The following table shows the geographical distribution of the export
sales:
 
<TABLE>
<CAPTION>
                                                    1997      1996       1995
                                                   ------- ---------- ----------
                                                           (RESTATED) (RESTATED)
                                                          (IN THOUSANDS)
     <S>                                           <C>     <C>        <C>
     Latin America................................ $ 4,593  $ 5,076    $ 4,884
     Asia/Pacific.................................   4,659    6,011      4,408
     Europe.......................................   1,263    1,286      1,118
     Africa/Middle East...........................   1,362    1,141      1,184
                                                   -------  -------    -------
                                                   $11,877  $13,514    $11,594
                                                   =======  =======    =======
</TABLE>
 
  Related net accounts receivable balances at December 31, 1997, 1996 and 1995
approximated $4,144,000, $5,276,000 and $4,569,000, respectively.
 
15. CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS
 
  The Company has notes receivable from certain of its employees. The total of
these notes is $249,000 as of December 31, 1997. All of these loans are
evidenced by demand notes bearing interest at prime rate plus 1/4% and are
collateralized by shares of IGI common stock. Remaining balances of these
notes from officers are included in the stockholders' equity as stockholders'
note receivable and all other notes receivable are included in notes
receivable in the accompanying Consolidated Balance Sheets. The Company has
recognized interest income from these notes of $10,000, $15,000 and $39,000
for the years ended December 31, 1997, 1996 and 1995 respectively. However,
the Company has provided reserves of $219,000 against these notes representing
the amount of notes receivable from terminated employees.
 
                                      52
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
16. EMPLOYEE BENEFITS
 
  The Company has a defined contribution retirement plan (401k), pursuant to
which employees who have completed one year of employment with the Company or
its subsidiaries as of specified dates may elect to contribute to the Plan, in
whole percentages, up to 15% of compensation, subject to a minimum
contribution by participants of 2% of compensation and a maximum contribution
of $9,500 in 1997, and $9,240 in 1996 and 1995. The Company matches 25% of the
first 5% of compensation contributed by participants and contributes on behalf
of each participant $4 per week of employment during the year. All
contributions of the Company are made quarterly in the form of the Company's
Common Stock ($.01 par value) and are immediately vested. The Company has
recorded charges to expense related to this plan of approximately $113,000,
$115,000, and $103,601 for the years 1997, 1996 and 1995, respectively.
 
 
17. BUSINESS SEGMENTS
 
  Summary data related to continuing operations for the three years ended
December 31, 1997 appear below:
 
<TABLE>
<CAPTION>
                                   ANIMAL HEALTH CONSUMER
                                     PRODUCTS    PRODUCTS CORPORATE CONSOLIDATED
                                   ------------- -------- --------- ------------
                                                  (IN THOUSANDS)
<S>                                <C>           <C>      <C>       <C>
1997
  Net sales.......................    $29,096     $5,097   $   --     $34,193
  Operating profit (loss).........      4,139        730    (5,032)      (163)
  Depreciation and amortization...        876        161       --       1,037
  Identifiable assets.............     29,535      4,509       --      34,044
  Capital expenditures............        632          4       --         636
1996 (RESTATED)
  Net sales.......................    $31,262     $3,523   $   --     $34,785
  Operating profit (loss).........      6,882       (917)   (4,097)     1,868
  Depreciation and amortization...        835        157       --         992
  Identifiable assets.............     28,412      5,972       --      34,384
  Capital expenditures............        715        198       --         913
1995 (RESTATED)
  Net sales.......................    $28,869     $1,632   $   --     $30,501
  Operating profit (loss).........      6,247       (233)   (3,056)     2,958
  Depreciation and amortization...        820         16       --         836
  Identifiable assets.............     29,280      2,872       --      32,152
  Capital expenditures............        745      1,652       --       2,397
</TABLE>
 
                                      53
<PAGE>
 
                          IGI, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
18. FOURTH QUARTER ADJUSTMENTS (UNAUDITED)
 
  In addition to the items discussed in Note 2, in the fourth quarter of 1997
the Company made adjustments to write off certain inventory, increase
valuation reserves for inventories and accounts receivable, record legal and
related expenses incurred in connection with the USDA OIG investigation, and
to adjust the recognition of licensing revenues. Certain of these adjustments
were the result of actions or events which occurred in earlier quarters of
1997. Had such adjustments been recorded in the applicable quarter, net income
and earnings per share would have differed from the amounts previously
reported as follows:
 
<TABLE>
<CAPTION>
                             FIRST QUARTER    SECOND QUARTER     THIRD QUARTER
                           ----------------- ----------------- -----------------
                              AS       AS       AS       AS       AS       AS
                           REPORTED ADJUSTED REPORTED ADJUSTED REPORTED ADJUSTED
                           -------- -------- -------- -------- -------- --------
                                 (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                        <C>      <C>      <C>      <C>      <C>      <C>
Net income (loss).........   $363     $ 55     $356     $218     $380    $(498)
Earnings per share:
  Basic...................   $.04     $.01     $.04     $.02     $.04    $(.05)
  Diluted.................   $.04     $.01     $.04     $.02     $.04    $(.05)
</TABLE>
 
                                      54
<PAGE>
 
                 SCHEDULE II--VALUATION AND QUALIFYING ACCOUNTS
                             (AMOUNTS IN THOUSANDS)
 
<TABLE>
<CAPTION>
         COL. A             COL. B             COL. C            COL. D      COL. E
         ------          ------------ ------------------------ ----------  ----------
                                             ADDITIONS
                                      ------------------------
                                                   (2) CHARGED
                          BALANCE AT  (1) CHARGED   TO OTHER               BALANCE AT
                         BEGINNING OF   TO COSTS    ACCOUNTS                 END OF
      DESCRIPTION           PERIOD    AND EXPENSES  DESCRIBE   DEDUCTIONS    PERIOD
      -----------        ------------ ------------ ----------- ----------  ----------
<S>                      <C>          <C>          <C>         <C>         <C>
Year ended December 31,
 1995 (Restated):
  Allowance for doubtful
   accounts.............    $  181        $142         --        $   17(A)   $  306
  Inventory valuation
   allowance............       507         645         --           459(B)      693
  Other assets valuation
   allowance............       186         --          --           --          186
  Amortization of
   goodwill.............        76           9         --           --           85
  Amortization of other
   intangibles..........       464          58         --           --          522
  Valuation allowance on
   net deferred tax
   assets...............     2,880          69         --         2,880(C)       69
Year ended December 31,
 1996 (Restated):
  Allowance for doubtful
   accounts.............    $  306        $(40)        --        $   28(A)   $  238
  Inventory valuation
   allowance............       693         123         --           199(B)      617
  Other asset valuation
   allowance............       186          --         --           --          186
  Amortization of
   goodwill.............        85           8         --           --           93
  Amortization of other
   intangibles..........       522          87         --           --          609
  Valuation allowance on
   net deferred tax
   assets...............        69         --          --            35(C)       34
Year ended December 31,
 1997:
  Allowance for doubtful
   accounts.............    $  238        $793         --        $  128(A)   $  903
  Inventory valuation
   allowance............       617         603         --           107(B)    1,113
  Other asset valuation
   allowance............       186         --          --           186(A)      --
  Amortization of
   goodwill.............        93           8         --           --          101
  Amortization of other
   intangibles..........       609         102         --           --          711
  Valuation allowance on
   net deferred tax
   assets...............        34         299         --           --          333
</TABLE>
- --------
(A) Relates to write-off of uncollectible accounts.
(B) Disposition of obsolete inventories.
(C)Related to spin off of certain discontinued operations during 1995.
 
                                       55
<PAGE>
 
                                 EXHIBIT INDEX
 
  Exhibits marked with a single asterisk are filed herewith, and exhibits
marked with a double asterisk reference management contract, compensatory plan
or arrangement, filed in response to Item 14(a)(3) of the instructions to Form
10-K. The other exhibits listed have previously been filed with the Commission
and are incorporated herein by reference.
 
<TABLE>
 <C>       <C> <S>
    (3)    (a) Certificate of Incorporation of IGI, Inc., as amended.
               [Incorporated by reference to Exhibit 4.1 to the Company's
               Registration Statement on Form S-8, File No. 33-63700, filed
               June 2, 1993.]
           (b) By-laws of IGI, Inc., as amended. [Incorporated by reference to
               Exhibit 2(b) to the Company's Registration Statement on Form S-
               18, File No. 2-72262-B, filed May 12, 1981.]
    (4)        Specimen stock certificate for shares of Common Stock, par value
               $.01 per share. [Incorporated by reference to Exhibit (4) to the
               Company's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1989, File No. 0-10063, filed April 2, 1990 (the
               "1989 Form 10-K".)]
 **(10.1)      IGI, Inc. 1983 Incentive Stock Option Plan. [Incorporated by
               reference to Exhibit A to the Company's Proxy Statement for the
               Annual Meeting of Stockholders held May 11, 1983.]
 **(10.2)      IGI, Inc. 1989 Stock Option Plan. [Incorporated by reference to
               the Company's Proxy Statement for the Annual Meeting of
               Stockholders held May 11, 1989.]
 **(10.3)      Employment Agreement by and between the Company and Edward B.
               Hager dated as of January 1, 1990. [Incorporated by reference to
               Exhibit (10)(c) to the 1989 Form 10-K.]
 **(10.4)      Extension of Employment Agreement by and between the Company and
               Edward B. Hager dated as of March 11, 1993. [Incorporated by
               reference to Exhibit (10)(d) to the Company's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1992, File No.
               0-10063, filed March 31, 1993 (the "1992 Form 10-K".)]
 **(10.5)      Extension of Employment Agreement by and between the Company and
               Edward B. Hager dated as of March 14, 1995. [Incorporated by
               reference to Exhibit (10)(e) to the Company's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1994, File No.
               0-10063, filed March 31, 1995 (the "1994 Form 10-K".)]
 **(10.6)      Amendment to Employment Agreement by and between the Company and
               Edward B. Hager dated as of October 1, 1997. [Incorporated by
               reference to Exhibit 10(a) to the Company's Quarterly Report on
               Form 10-Q for the quarter ended September 30, 1997, File No 1-
               8568, filed November 13, 1997 (the "September 30, 1997 Form 10-
               Q")]
 **(10.7)      Employment Agreement by and between the Company and John P.
               Gallo dated as of January 1, 1990. [Incorporated by reference to
               Exhibit (10)(d) to the 1989 Form 10-K.]
 **(10.8)      Extension of Employment Agreement by and between the Company and
               John P. Gallo dated as of March 11, 1993. [Incorporated by
               reference to Exhibit (10)(g) to the 1992 Form 10-K.]
 **(10.9)      Extension of Employment Agreement by and between the Company and
               John P. Gallo dated as of March 14, 1995. [Incorporated by
               reference to Exhibit (10)(h) to the 1994 Form 10-K.]
 **(10.10)     Amendment to Employment Agreement by and between the Company and
               John P. Gallo dated as of October 1, 1997. [Incorporated by
               reference to Exhibit 10(b) to the September 30, 1997 Form 10-Q.]
   (10.11)     Rights Agreement by and between the Company and Fleet National
               Bank dated as of March 19, 1987. [Incorporated by reference to
               Exhibit (4) to the Company's Current Report on Form 8-K, File
               No. 0-10063, dated as of March 26, 1987.]
   (10.12)     Amendment to Rights Agreement by and among the Company, Fleet
               National Bank and State Street Bank and Trust Company dated as
               of March 23, 1990. [Incorporated by reference to Exhibit (10)(g)
               to the 1989 Form 10-K.]
</TABLE>
 
                                       56
<PAGE>
 
<TABLE>
 <C>       <C> <S>
   (10.13)     Second Amended and Restated Loan Agreement by and between Fleet
               Bank-NH, Mellon Bank, N.A. and IGI, Inc., together with its
               subsidiaries, dated December 13, 1995. [Incorporated by
               reference to Exhibit (10)(o) to the Company's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1995, File No.
               1-8568, filed March 29, 1996 (the "1995 Form 10-K".)]
   (10.14)     First Amendment to Second Amended and Restated Loan Agreement by
               and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.,
               together with its subsidiaries, dated March 27, 1996.
               [Incorporated by reference to Exhibit 10(l) to the Company's
               Annual Report on Form 10-K for the fiscal year ended December
               31, 1996, File No. 1-8568, filed April 10, 1997 (the "1996 Form
               10-K".)]
   (10.15)     Second Amendment to Second Amended and Restated Loan Agreement
               by and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.,
               together with its subsidiaries, dated June 26, 1996.
               [Incorporated by reference to Exhibit 10.1 to the Company's
               Quarterly Report on Form 10-Q for the quarter ended September
               30, 1996, File No. 1-8568, filed November 14, 1996 (the
               "September 30, 1996 Form 10-Q".)]
   (10.16)     Third Amendment to Second Amended and Restated Loan Agreement by
               and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.,
               together with its subsidiaries, dated August 23, 1996.
               [Incorporated by reference to Exhibit 10.2 to the September 30,
               1996 Form 10-Q.]
   (10.17)     Fourth Amendment to Second Amended and Restated Loan Agreement
               by and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.
               together with its subsidiaries, dated November 13, 1996.
               [Incorporated by reference to exhibit 10(o) to the 1996 Form 10-
               K.]
   (10.18)     Fifth Amendment to Second Amended and Restated Loan Agreement by
               and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.,
               together with its subsidiaries, dated March 27, 1996.
               [Incorporated by reference to exhibit 10(p) to the 1996 Form 10-
               K.]
   (10.19)     Sixth Amendment to Second Amended and Restated Loan Agreement by
               and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.,
               together with its subsidiaries, dated June 30, 1997.
               [Incorporated by reference to Exhibit 10(c) to the September 30,
               1997 Form 10-Q]
   (10.20)     Seventh Amendment to Second Amended and Restated Loan Agreement
               by and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.,
               together with its subsidiaries, dated July 31, 1997.
               [Incorporated by reference to Exhibit 10(d) to the September 30,
               1997 Form 10-Q.]
   (10.21)     Eight Amendment to Second Amended and Restated Loan Agreement by
               and between Fleet Bank-NH, Mellon Bank, N.A. and IGI, Inc.,
               together with its subsidiaries, dated September 30, 1997.
               [Incorporated by reference to Exhibit 10(e) to the September 30,
               1997 Form 10-Q.]
  *(10.22)     Extension Agreement by and between Fleet Bank-NH, Mellon Bank,
               N.A. and IGI, Inc., together with its subsidiaries, dated April
               29, 1998.
  *(10.23)     Forbearance Agreement by and between Fleet Bank-NH, Mellon Bank,
               N.A. and IGI, Inc. together with its subsidiaries, dated August
               19, 1998.
 **(10.24)     IGI, Inc. Non-Qualified Stock Option Plan. [Incorporated by
               reference to Exhibit (3)(k) to the Company's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1991, File No.
               0-10063, filed March 30, 1992 (the "1991 Form 10-K".)]
 **(10.25)     IGI, Inc. 1991 Stock Option Plan, [Incorporated by reference to
               the Company's Proxy Statement for the Annual Meeting held May 9,
               1991.]
 **(10.26)     Amendment No. 1 to IGI, Inc. 1991 Stock Option Plan as approved
               by Board of Directors on March 11, 1993. [Incorporated by
               reference to Exhibit 10(p) to the 1992 Form 10-K.]
 **(10.27)     Amendment No. 2 to IGI, Inc. 1991 Stock Option Plan as approved
               by Board of Directors on March 22, 1995. [Incorporated by
               reference to the Appendix to the Company's Proxy Statement for
               the Annual Meeting of Stockholders held May 9, 1995.]
 **(10.28)     Amendment No. 3 to IGI, Inc. 1991 Stock Option Plan as approved
               by Board of Directors on March 19, 1997. [Incorporated by
               reference to Exhibit 10 to the Company's Quarterly Report on
               Form 10-Q for the quarter ended June 30, 1997, File No. 1-8568,
               filed August 14, 1997.]
</TABLE>
 
                                       57
<PAGE>
 
<TABLE>
 <C>       <C> <S>
   (10.29)     Form of Registration Rights Agreement signed by all purchasers
               of Common Stock in connection with private placement on January
               2, 1992. [Incorporated by reference to Exhibit (3)(m) to the
               1991 Form 10-K.]
   (10.30)     License Agreement by and between Micro-Pak, Inc. and IGEN, Inc.
               [Incorporated by reference to Exhibit (10)(v) to the 1995 Form
               10-K.]
   (10.31)     Registration Rights Agreement between IGI, Inc. and SmithKline
               Beecham p.l.c. dated as of August 2, 1993. [Incorporated by
               reference to Exhibit (10)(s) to the 1993 Form 10-K.]
   (10.32)     Supply Agreement, dated as of January 27, 1997, between IGI,
               Inc. and Glaxo Wellcome Inc. [Incorporated by reference to
               Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q/A,
               Amendment No.1, for the quarter ended March 31, 1997, File No.
               1-8568, filed June 16, 1997.]
  *(10.33)     Common Stock Purchase Warrant No. 1 to purchase 150,000 shares
               of IGI, Inc. Common Stock issued May 12, 1998 to Fleet Bank-NH.
  *(10.34)     Common Stock Purchase Warrant No. 2 to purchase 150,000 shares
               of IGI, Inc. Common Stock issued May 12, 1998 to Fleet Bank-NH.
  *(10.35)     Common Stock Purchase Warrant No. 3 to purchase 120,000 shares
               of IGI, Inc. Common Stock issued May 12, 1998 to Mellon Bank,
               N.A.
  *(10.36)     Common Stock Purchase Warrant No. 4 to purchase 120,000 shares
               of IGI, Inc. Common Stock issued May 12, 1998 to Mellon Bank,
               N.A.
  *(11)        Computation of net income per common share.
  *(21)        List of Subsidiaries.
  *(23)        Consent of PricewaterhouseCoopers LLP.
  *(27.1)      Financial Data Schedule for the year ended December 31, 1997.
  *(27.2)      Restated Financial Data Schedules for the years ended December
               31, 1995 and 1996.
</TABLE>
 
                                       58

<PAGE>
                                                                   Exhibit 10.22

                              EXTENSION AGREEMENT
                              -------------------

     This Extension Agreement (hereinafter, the "Agreement") is made this 29 
day of April, 1998 by and among:

          FLEET BANK-N.H., a banking and trust company organized under the laws
          of New Hampshire ("Fleet");

          MELLON BANK, N.A., a national banking association ("Mellon"); and

          IGI, INC., a Delaware corporation ("IGI"), IGEN, INC., a Delaware
          corporation ("IGEN"); IMMUNOGENETICS, INC., a Delaware corporation
          ("Immunogenetics"); and BLOOD CELLS, INC., a Delaware corporation
          ("BCI").

Fleet and Mellon are hereinafter sometimes individually referred to as a
"Lender" and collectively referred to as the "Lenders", and IGI, IGEN,
Immunogenetics, BCI, and each of their subsidiaries as set forth on Exhibit "A"
annexed hereto and specifically incorporated by reference herein, are
hereinafter sometimes individually referred to as a "Borrower" and collectively
referred to as the "Borrowers".

                                  BACKGROUND
                                  ----------

     Reference is made to certain Loan Arrangements (hereinafter, the "Loan
Arrangements") entered into by and between the Lenders and the Borrowers
evidenced by, among other things, the following documents, instruments, and
agreements (hereinafter, singly and collectively, the "Loan Documents"):

     (a)  Fourth Amended and Restated Line of Credit Note dated September 30,
1997 in the original principal amount of $6,600,000.00 made by the Borrowers
payable to Fleet (the "Fleet Line of Credit Note");

     (b)  Fourth Amended and Restated Line of Credit Note dated September 30,
1997 in the original principal amount of $5,400,000.00 made by the Borrowers
payable to Mellon (the "Mellon Line of Credit Note");

     (c)  Third Amended and Restated Revolving Credit Note dated March 27, 1997
in the original principal amount of $6,171,428.40 made by the Borrowers payable
to Fleet (the "Fleet Term Note");

     (d)  Third Amended and Restated Revolving Credit Note dated March 27, 1997
in the original principal amount of $4,114,285.60 made by the Borrowers payable
to Mellon (the "Mellon Term Note");
<PAGE>
 
     (e)  Second Amended and Restated Loan Agreement dated December 13, 1995 by
and among the Lenders and the Borrowers, as amended by a certain First Amendment
to Second Amended and Restated Loan Agreement dated March 27, 1996, a certain
Second Amendment to Second Amended and Restated Loan Agreement dated as of June
26, 1996, a certain Third Amendment to Second Amended and Restated Loan
Agreement dated August 13, 1996, a certain Fourth Amendment to Second Amended
and Restated Loan Agreement dated as of November 13, 1996, a certain Fifth
Amendment to Second Amended and Restated Loan Agreement dated March 27, 1997, a
certain Sixth Amendment to Second Amended and Restated Loan Agreement dated June
30, 1997, a certain Seventh Amendment to Second Amended and Restated Loan
Agreement dated July 31, 1997, and a certain Eighth Amendment to Second Amended
and Restated Loan Agreement dated as of September 30, 1997 (hereinafter, as
amended and in effect, the "Loan Agreement");

     (f)  A certain Security Agreement granted by, among others, IGI, IGEN and
Immunogenetics, in favor of Fleet dated December 20, 1990;

     (g)  A certain Security Agreement - Intellectual Property granted by, among
others, IGI, IGEN and Immunogenetics in favor of Fleet dated December 20, 1990;

     (h)  A certain Security Documents Modification Agreement entered into by,
among others, the Borrowers and the Lenders dated as of December 13, 1995;

     (i)  A certain Joinder, Assumption and Security Documents Modification
Agreement dated as of May 12, 1992 entered into by, among others, the Borrowers,
and Fleet;

     (j)  A certain Mortgage granted by Immunogenetics in favor of Fleet dated
December 20, 1990 encumbering certain property located in the borough of Buena,
Atlantic County, New Jersey;

     (k)  A certain Mortgage granted by Immunogenetics in favor of Fleet dated
May 12, 1992 encumbering certain property located in the township of Buena
Vista, Atlantic County, New Jersey;

     (l)  A certain Mortgage granted by Immunogenetics in favor of Fleet dated
December 20, 1990 encumbering certain property located in the city of Vineland,
Cumberland County, New Jersey;

     (m)  A certain Collateral Assignment of Lessee's Interest in Leases
executed by, among others, Immunogenetics in favor of Fleet dated December 20,
1990;

     (n)  A certain Stock Pledge Agreement executed by, among others, IGI and
IGEN in favor of Fleet dated December 20, 1990; and

                                       2
<PAGE>
 
     (o)  A certain Conditional Assignment of Contracts granted by, among
others, IGI, IGEN and Immunogenetics in favor of Fleet dated December 20, 1990.

     The Borrowers acknowledge the expiration of the Fleet Line of Credit Note
and the Mellon Line of Credit Note upon the December 31, 1997 maturity and have
requested that the Lenders (i) extend the time for repayment of their entire
outstanding indebtedness under the Loan Documents until March 31, 1999, (ii)
waive certain existing covenant defaults, and (iii) otherwise modify the
existing Loan Documents. The Lenders have agreed, but only upon the terms and
conditions set forth herein.

     Accordingly, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, it is hereby agreed by and among
the Lenders and the Borrowers as follows:

                        ACKNOWLEDGMENT OF INDEBTEDNESS
                        ------------------------------

     1.   (A)  THE bORROWERS HEREBY ACKNOWLEDGE AND AGREE THAT THEY ARE JOINTLY
AND SEVERALLY LIABLE TO THE LENDERS FOR THE FOLLOWING AMOUNTS WHICH ARE
OUTSTANDING UNDER THE LOAN DOCUMENTS AS OF APRIL 23, 1998: 

<TABLE> 
<CAPTION> 
          Fleet Line of Credit Note:                        
          --------------------------                       
          <S>                             <C> 
          Principal                       $ 6,600,000.00    
          Interest                        $    52,708.34   
                                          --------------   
               Subtotal                   $ 6,652,708.34   
                                                           
          Mellon Line of Credit Note:                      
          ---------------------------                      
                                                           
          Principal                       $ 5,400,000.00   
          Interest                        $    43,125.00   
                                          --------------    
               Subtotal                   $ 5,443,125.00   
                                                           
          Fleet Term Note:                                 
          ----------------                                 
                                                           
          Principal                       $ 4,114,285.20    
          Interest                        $    34,171.42    
                                          --------------    
               Subtotal                   $ 4,148,456.62         
 
          Mellon Term Note:                                           
          -----------------                                          
                                                                     
          Principal                       $ 2,742,856.80             
          Interest                        $    22,780.95             
                                          --------------             
               Subtotal                   $ 2,765,637.75             
                    TOTAL.................................. $19,009,927.71 
</TABLE>

                                       3
<PAGE>
 
          (b)  The Borrowers further acknowledge and agree that they are each
jointly and severally liable to the Lenders for all interest accruing under the
Loan Documents from and after April 23, 1998, and for all late fees, costs,
expenses, and costs of collection (including attorneys' fees) heretofore or
hereafter incurred by the Lenders in connection herewith. (Hereinafter, all
amounts due as set forth in this Paragraph 1 shall be referred to collectively
as the "Obligations").

                               REPAYMENT OF DEBT
                               -----------------

     2.   (a)  Fleet Line of Credit Note and Mellon Line of Credit Note.
               -------------------------------------------------------- 

               (i)   From and after the execution of this Agreement, on the 1st
          day of each month, the Borrowers shall pay to the Lenders a monthly
          interest payment equal to all accrued interest on the principal
          balance of the Fleet Line of Credit Note and the Mellon Line of Credit
          Note, with interest calculated at a floating rate equal to the
          aggregate of Fleet's Prime Rate (as such Prime Rate may be announced
          by Fleet from time to time) plus the following percentages for the
          time periods set forth below each calculated on a per annum basis:

                     Time Period              Applicable Interest Rate
                     -----------              ------------------------

               Date of Execution of this      Prime Rate plus 2.50%
               Agreement through 7/31/98

               From 8/1/98 through 9/30/98    Prime Rate plus 3.00%
 
               From 10/1/98 through 12/31/98  Prime Rate plus 4.00%

               From and after 1/1/99          Prime Rate plus 4.50%

               In the event the Borrowers have delivered to the Lenders a
          commitment letter on or before July 31, 1998 reasonably satisfactory
          to the Lenders, in their discretion, contemplating satisfaction of all
          obligations due and owing to the Lenders under the Loan Documents on
          or before August 31, 1998, which commitment letter is issued by a
          financial institution reasonably acceptable to the Lenders and is
          subject only to documentation and no further contingencies, the
          interest rate increase scheduled for August 1, 1998 shall be deferred.
          In the event that the Borrowers do not satisfy their entire
          outstanding obligations to the Lenders under the Loan Documents on or
          before August 31, 1998, the August 1, 1998 scheduled interest rate
          increase to the Prime Rate plus 3.0% shall be effective retroactive to
          August 1, 1998. In the event that the Borrowers do satisfy their
          entire outstanding obligations to the Lenders under the Loan Documents
          on or

                                       4
<PAGE>
 
          before August 31, 1998, the August 1, 1998 scheduled interest rate
          increase shall be waived.

               Similarly if such commitment letter is received by the Lenders on
          or before September 30, 1998 contemplating satisfaction of all
          obligations due and owing to the Lenders under the Loan Documents on
          or before October 31, 1998, the interest rate increase scheduled for
          October 1, 1998 shall be deferred. In the event that the Borrowers do
          satisfy their entire outstanding obligations to the Lenders under the
          Loan Documents on or before October 31, 1998, the October 1, 1998
          scheduled interest rate increase shall be waived. In the event the
          Borrowers do not satisfy their entire outstanding obligations to the
          Lenders under the Loan Documents on or before October 31, 1998, the
          October 1, 1998 scheduled interest rate increase to the Prime Rate
          plus 4.00 % shall be effective retroactive to October 1, 1998.

               Similarly if such commitment letter is received by the Lenders on
          or before December 31, 1998 contemplating satisfaction of all
          obligations due and owing to the Lenders under the Loan Documents on
          or before January 30, 1999, the interest rate increase scheduled for
          January 1, 1999 shall be deferred. In the event that the Borrowers do
          satisfy their entire outstanding obligations to the Lenders under the
          Loan Documents on or before January 30, 1999, the January 1, 1999
          scheduled interest rate increase shall be waived. In the event the
          Borrowers do not satisfy their entire outstanding obligations to the
          Lenders under the Loan Documents on or before January 30, 1998, the
          January 1, 1999 scheduled interest rate increase to the Prime Rate
          plus 4.50 % shall be effective retroactive to January 1, 1999.

               (ii)  Any amounts paid to cure the financial covenant default
          pursuant to Paragraph 12(a)(iii) below, shall be applied on a pro rata
          basis in reduction of the principal balance of the Fleet Line of
          Credit Note and the Mellon Line of Credit Note.

               (iii) The entire principal balance, interest (accrued and
          hereafter accruing), costs, expenses, and other charges due in
          connection therewith shall be paid in full by the Borrowers on or
          before 5:00 P.M. eastern standard time on March 31, 1999, it being
          expressly acknowledged and agreed that TIME IS OF THE ESSENCE .

          (b)  Fleet Term Note and Mellon Term Note.
               ------------------------------------ 

               (i)   From and after the execution of this Agreement, on the 1st
          day of each month, the Borrowers shall pay to the Lenders a monthly
          interest payment equal to all accrued interest on the principal
          balance of the Fleet Term Note and

                                       5
<PAGE>
 
          the Mellon Term Note, with interest calculated at a floating rate
          equal to the aggregate of Fleet's Prime Rate (as such Prime Rate may
          be announced by Fleet from time to time) plus the following
          percentages for the time period set forth below each calculated on a
          per annum basis:

                     Time Period              Applicable Interest Rate
                     -----------              ------------------------

               Date of Execution of this      Prime Rate plus 2.50%
               Agreement through 7/31/98

               From 8/1/98 through 9/30/98    Prime Rate plus 3.00%

               From 10/1/98 through 12/31/98  Prime Rate plus 4.00%

               From and after 1/1/99          Prime Rate plus 4.50%

               In the event the Borrowers have delivered to the Lenders a
          commitment letter on or before July 31, 1998 satisfactory to the
          Lenders, in their discretion, contemplating satisfaction of all
          obligations due and owing to the Lenders under the Loan Documents on
          or before August 31, 1998, which commitment letter is issued by a
          financial institution acceptable to the Lenders and is subject only to
          documentation and no further contingencies, the interest rate increase
          scheduled for August 1, 1998 shall be deferred. In the event that the
          Borrowers do not satisfy their entire outstanding obligations to the
          Lenders under the Loan Documents on or before August 31, 1998, the
          August 1, 1998 scheduled interest rate increase to the Prime Rate plus
          3.0% shall be effective retroactive to August 1, 1998. In the event
          that the Borrowers do satisfy their entire outstanding obligations to
          the Lenders under the Loan Documents on or before August 31, 1998, the
          August 1, 1998 scheduled interest rate increase shall be waived.

               Similarly if such commitment letter is received by the Lenders on
          or before September 30, 1998 contemplating satisfaction of all
          obligations due and owing to the Lenders under the Loan Documents on
          or before October 31, 1998, the interest rate increase scheduled for
          October 1, 1998 shall be deferred. In the event the Borrowers do
          satisfy their entire outstanding obligations to the Lenders under the
          Loan Documents on or before October 31, 1998, the October 1, 1998
          scheduled interest rate increase shall be waived. In the event the
          Borrowers do not satisfy their entire outstanding obligations to the
          Lenders under the Loan Documents on or before October 31, 1998, the
          October 1, 1998 scheduled interest rate increase to the Prime Rate
          plus 4.00 % shall be effective retroactive to October 1, 1998.

                                       6
<PAGE>
 
               Similarly if such commitment letter is received by the Lenders on
          or before December 31, 1998 contemplating satisfaction of all
          obligations due and owing to the Lenders under the Loan Documents on
          or before January 30, 1999, the interest rate increase scheduled for
          January 1, 1999 shall be deferred. In the event that the Borrowers do
          satisfy their entire outstanding obligations to the Lenders under the
          Loan Documents on or before January 30, 1999, the January 1, 1999
          scheduled interest rate increase shall be waived. In the event the
          Borrowers do not satisfy their entire outstanding obligations to the
          Lenders under the Loan Documents on or before January 30, 1998, the
          January 1, 1999 scheduled interest rate increase to the Prime Rate
          plus 4.50 % shall be effective retroactive to January 1, 1999.

               (ii)  The Borrowers shall pay to the Lenders the following
          amounts on or before the following dates in collected funds to be
          applied by the Lenders (x) first, on a pro rata basis in reduction of
          the outstanding indebtedness under the Fleet Term Note and the Mellon
          Term Note and (y) second, on a pro rata basis as permanent reductions
          to the outstanding indebtedness under the Fleet Line of Credit Note
          and the Mellon Line of Credit Note and shall permanently reduce the
          available credit thereunder by that amount:

<TABLE> 
<CAPTION> 
                        Date                Amount
                        ----                ------
                     <S>                   <C>
                     June 15, 1998         $200,000.00
                     July 15, 1998         $500,000.00
                     August 15, 1998       $200,000.00
                     September 15, 1998    $200,000.00
                     October 15, 1998      $500,000.00
                     November 15, 1998     $200,000.00
                     December 15, 1998     $500,000.00
                     January 15, 1999      $100,000.00
                     February 15, 1999     $100,000.00
                     March 15, 1999        $200,000.00
</TABLE>

               (iii) In addition to the scheduled principal payments set forth
          herein, commencing with the month of September, 1998, the Borrowers
          shall make further principal payments to the Lenders in an amount
          representing seventy-five (75%) percent of "Monthly Excess Cash Flow",
          which payments shall be made in collected funds and applied by the
          Lenders (x) first, on a pro rata basis in reduction of the outstanding
          indebtedness under the Fleet Term Note and the Mellon Term Note, and
          (y) second, on a pro rata basis as permanent reductions to the
          outstanding indebtedness under the Fleet Line of Credit Note and the
          Mellon Line of Credit Note and shall permanently reduce the available
          credit thereunder by that amount. "Monthly Excess Cash Flow", as used
          herein, shall mean balance sheet cash at the end of the month minus
          the immediately succeeding six (6) weeks' forecasted cash
          disbursements, inclusive of scheduled principal payments as

                                       7
<PAGE>
 
          detailed in Section 2(b)(iii). Such principal payments shall be due
          and payable forty-five (45) days after the close of each month.

               (iv)  The entire principal balance, interest (accrued and
          hereafter accruing), costs and expenses, and other charges due in
          connection therewith shall be paid in full by the Borrowers on or
          before 5:00 P.M. eastern standard time on March 31, 1999, it being
          expressly acknowledged and agreed that TIME IS OF THE ESSENCE.

               (v)   Any amounts paid or prepaid on account of the Fleet Term
          Note or the Mellon Term Note, whether pursuant to this Agreement or
          otherwise, shall not be available for reborrowing.

                EQUITY OR PERMITTED DEBT ISSUANCE; TAX REFUNDS
                ----------------------------------------------

     3.   (a)  In the event the Borrowers shall raise funds from the issuance of
either debt permitted by the Lenders and/or equity instruments, such funds will
be applied (i) first, on a pro rata basis in reduction of the outstanding
indebtedness under the Fleet Term Note and the Mellon Term Note; and (ii)
second, on a pro rata basis as permanent reductions to the outstanding
indebtedness under the Fleet Line of Credit Note and the Mellon Line of Credit
Note and shall permanently reduce the available credit thereunder by that
amount.

          (b)  In the event the Borrowers receive actual funds from any tax
refund (local, state, federal, or otherwise), the Borrowers shall immediately
deliver the same to the Lenders, in the identical form received and with all
necessary endorsements thereon, which funds will be applied (i) first, on a pro
rata basis in reduction of the outstanding indebtedness under the Fleet Term
Note and the Mellon Term Note; and (ii) second, on a pro rata basis as permanent
reductions to the outstanding indebtedness under the Fleet Line of Credit Note
and the Mellon Line of Credit Note and shall permanently reduce the available
credit thereunder by that amount.

                CASH MANAGEMENT; DEPOSITORY ACCOUNTS; PAYMENTS
                ----------------------------------------------

     4.   (a)  The Borrowers shall continue to maintain their corporate
depository bank accounts with Fleet as required by the Loan Agreement.

          (b)  The Borrowers acknowledge that their previous cash management
relationship with Fleet, sometimes referred to as the "Target Balance Account",
has been terminated. The Borrowers further acknowledge and agree that no
overdrafts in any of their demand deposit accounts shall be permitted.

          (c)  Until further notice from the Lenders, all payments required
under this Agreement shall be made as and when due to Fleet's address set forth
below in Paragraph 23. All receivables collected by the Borrowers shall be
deposited into the Borrowers' account with Fleet,

                                       8
<PAGE>
 
Account No. 099-0059-160 (the "General Account"). Any and all funds deposited in
the Borrowers' existing lock box account at Fleet shall be transferred to the
General Account on a daily basis. Until the occurrence of an Event of Default as
defined in Paragraph 20 below, all funds in the General Account shall be
available to the Borrowers, subject to Fleet's usual and customary rules and
procedures regarding uncollected funds, to pay their regular and ordinary
business expenses.

          (d)  Any payments due under this Agreement, or costs and expenses
incurred by the Lenders which are reimbursable under this Agreement, may be
debited by Fleet from the General Account without any further instruction or
authorization of the Borrowers.

             REQUEST FOR ADVANCES UNDER FLEET LINE OF CREDIT NOTE
             ----------------------------------------------------
                        AND MELLON LINE OF CREDIT NOTE
                        ------------------------------

     5.   From and after the date of this Agreement, all requests for advances
under the Fleet Line of Credit Note and/or the Mellon Line of Credit Note shall
be submitted directly to Mr. Daniel D. Butler, Vice President of Fleet, on
behalf of the Lenders, for approval and shall be accompanied by a Borrowing Base
Certificate in the form of Exhibit "B" and a Covenant Compliance Certificate in
the form of Exhibit "C", each as annexed hereto and specifically incorporated by
reference herein.

                          WAIVER OF COVENANT DEFAULTS
                          ---------------------------

     6.   The Lenders hereby waive the following specific covenant defaults
which have occurred under the terms and conditions of the Loan Agreement prior
to the execution of this Agreement:

(a)  Sections 3.02 and 5.02 - The Borrowers' failure to remain in good standing
under the laws of the State of Delaware as a result of a delay in the filing of
IGI's and BCI's franchise taxes;

(b)  Sections 3.04 and 5.03 - The Borrowers' failure, prior to the execution of
this Agreement, to promptly advise the Lenders of all litigation, actions,
proceedings, or suits which, if adversely determined, may have a Material
Adverse Effect (as defined in Paragraph 20(d) below) on the Borrowers;

(c)  Section 5.04(a) - The Borrowers' failure to submit audited annual financial
statements not more than ninety (90) days after the close of their fiscal year
ended December 31, 1997;

(d)  Section 5.04(e)(iii) - The Borrowers' failure to submit a consolidated
capital expenditure budget and separate research and development budget within
thirty (30) days after the commencement of their fiscal year beginning January
1, 1998;

                                       9
<PAGE>
 
(e)  Section 5.04(e)(iv) - The Borrowers' failure to submit a consolidated cash
flow and profit and loss projection within thirty (30) days after commencement
of their fiscal year beginning January 1, 1998;

(f)  Section 5.10 - The Borrowers' failure to maintain an Interest Coverage
Ratio of not less than 1.50 to 1.00 for the fiscal year ended December 31, 1997;

(g)  Section 5.11 - The Borrowers' failure to maintain an Adjusted Interest
Coverage Ratio of not less than 3.00 to 1.00 for the fiscal year ended December
31, 1997;

(h)  Section 7.01(a) - The Borrowers' representation that reports, certificates,
financial statements and/or other instrument furnished prior to December 31,
1997 may have been false, inaccurate or misleading in any material respect; and

(i)  Section 7.01(k) - The Borrowers' failure to generate a positive Net Income
for any fiscal quarter ending prior to the execution of this Agreement.

     Nothing contained in this Paragraph 6 is intended to be, nor shall it be
construed as, a waiver of any default or Event of Default occurring or
continuing after the execution of this Agreement, or of any other default or
Event of Default, other than the specific defaults referenced above.

                              COVENANT AMENDMENTS
                              -------------------

     7.   (a)  The Loan Agreement is hereby amended by deleting the following
specific terms and covenants in their entirety:

               (i)   Section 5.08 - Capital Base;

               (ii)  Section 5.09 - Indebtedness to Capital Base Ratio;

               (iii) Section 5.09(a) - Current Ratio;

               (iv)  Section 6.06(a)(ii) - Investment;

               (v)   Section 6.06(c) - Acquisition; and

               (vi)  Section 6.09 - Indebtedness for Capital Expenditures

          (b)  The Loan Agreement is hereby amended to delete Mr. John P. Gallo,
former President and Chief Executive Officer of IGI, Inc. from the definition of
"Management Group" and substituting Mr. Kevin J. Bratton, Treasurer of IGI, Inc.
therefor.

                                      10
<PAGE>
 
          (c)  Section 5.18 of the Loan Agreement is hereby amended by deleting
reference to Mr. John P. Gallo as a "senior executive officer" of IGI, Inc. and
substituting Mr. Kevin J. Bratton therefor.

                         VOLUNTARY PRINCIPAL PAYMENTS
                         ----------------------------
                                        
     8.   Provided that there is no then existing Event of Default as set forth
in Paragraph 20, below, if the Borrowers shall make voluntary extraordinary
principal reductions to the Fleet Term Note and the Mellon Term Note in excess
of the payments set forth in Paragraph 2(b), above, in an amount in excess of
$250,000.00, as a consequence of fixed asset dispositions permitted by the
Lenders in writing, or otherwise, then the effective interest rate applicable to
the Fleet Term Note and the Mellon Term Note shall be reduced by twenty-five
(25) basis points for each incremental $250,000.00 principal reduction. In no
event shall the effective interest rate be reduced by more than one hundred
(100) basis points, in the aggregate, as a consequence of such voluntary
principal payments.

                                   WARRANTS
                                   --------
                                        
     9.   Grant. In consideration for the extension and other accommodations
          -----                                                             
provided by the Lenders under this Agreement, within fourteen (14) days of the
execution of this Agreement, IGI, Inc. shall grant to the Lenders, and their
respective successors and assigns, stand-alone warrants (collectively, the
"Warrants"), the terms of which shall be in conformance with the provisions of
 --------
this Paragraph 9 and which shall be in a form acceptable, in all respects, to
the Lenders in their reasonable discretion, exercisable for shares of IGI, Inc.
common stock, as follows:

          As to Fleet:  Two Warrants, one for 150,000 shares (the "Fleet
                                                                   -----
          Unconditional Warrant") and one for 150,000 shares (the "Fleet
          ---------------------                                    -----
          Conditional Warrant")
          -------------------   
                    
          As to Mellon:  Two Warrants, one for 120,000 shares (the "Mellon 
                                                                    ------ 
          Unconditional Warrant," and, together with the Fleet Unconditional
          ---------------------                                             
          Warrant, the "Unconditional Warrants") and one for 120,000 shares (the
                        ----------------------   
          "Mellon Conditional Warrant," and, together with the Fleet Conditional
           --------------------------                
          Warrant,the "Conditional Warrant").
                       --------------------  

     Exercise Price.   The exercise price for the Warrants shall be $3.50 per
     --------------                                                          
common share (subject to customary adjustments). In addition to other customary
warrant provisions, the Warrants shall each contain "cashless" exercise
provisions and anti-dilution provisions.

     Exercise Period.
     --------------- 

                         (a)  Unconditional Warrants.   The Unconditional 
                              ----------------------                     
                    Warrants will be exercisable at any time during the period

                                      11
<PAGE>
 
                    commencing sixty (60) days after issuance and ending on the
                    fifth (5th) anniversary of issuance.

                         (b)  Conditional Warrants.  The Conditional Warrants 
                              --------------------                           
                    will be exercisable during the period commencing September
                    1, 1998, and ending on the fifth (5th) anniversary of
                    issuance, unless, by 5:00 PM, Boston time, on August 31,
                    1998, either (a) all Obligations of the Borrowers to the
                    Lenders shall have been paid in full, in which case the
                    Conditional Warrants shall expire, or (b) the Borrowers have
                    delivered an acceptable commitment letter, subject only to
                    documentation and no further contingencies of any kind, from
                    a financial institution acceptable to the Lenders,
                    contemplating a full refinance of the existing obligations
                    which contemplates a closing within thirty (30) days, in
                    which case the Conditional Warrant exercise start date shall
                    be extended to September 30, 1998; provided, however, if all
                                                       --------  -------
                    Obligations of the Borrowers to the Lenders have been paid
                    in full on or before such extended start date, the
                    Conditional Warrants shall expire upon such payment.

                         (c)  Acceleration of Exercise Star Dates.   
                              -----------------------------------
                    Notwithstanding the foregoing, the Unconditional Warrants
                    shall become immediately exercisable upon the occurrence of
                    an Event of Default, or the exercise by IGI, Inc. of the
                    call option for the issuable shares under such Warrant
                    described below (to afford the Lenders the opportunity
                    exercise the subject Warrant before the call option
                    closing).

     Call Option.   IGI, Inc. shall have a  call  option on the Warrants, 
     -----------                                                         
subject to the following terms:

                         (a)  The option may only be exercised as to all,and not
                     less than all, of the shares issuable at such time under
                     the subject Warrant, and shall not cover issued shares (or
                     shares pending issuance).

                         (b)  The repurchase price (subject to customary
adjustments based upon the operation of the anti-dilution provisions of the
Warrants) will be (i) $500,000 for the150,000 shares issuable under the Fleet
Unconditional Warrant; (ii)$500,000 for the150,000 shares issuable under the
Fleet Conditional Warrant; (iii) $400,000 for the 120,000 shares issuable under
the Mellon Unconditional Warrant;and(iv) $400,000 for the 120,000 shares
issuable under the Mellon Conditional Warrant. In the event that the number of
shares issuable under a Warrant at the time of a call exercise is less than the
number of shares initially issuable thereunder due to an exercise

                                      12
<PAGE>
 
there under or a transfer, the repurchase price will be proportionately
adjusted.

     Registration Rights.     The Lenders acknowledge that the shares issuable
     -------------------                                                     
upon the exercise of the Warrants (when issued, the "Warrant Shares") will be
                                                     --------------           
"restricted securities" within the meaning of Rule 144 of the Securities Act of
1933, as amended (the "Securities Act"). At any time during the period 
                       --------------                                  
commencing (a) as to the Unconditional Warrants, 120 days after their issuance,
and (b) as to the Conditional Warrants, on their exercise start date (determined
as provided above), and ending on the earlier of (x) the second anniversary of
the date as of which all of the Warrants have been exercised (or, as to any
unexercised Warrants, the right to exercise has lapsed) and the underlying
Warrant Shares are held by the applicable Lender, or (y) the date as of which
Rule 144(k) becomes available to the Lenders for the resale of all Warrant
Shares held by the Lenders, the Lenders will have the right to demand that IGI,
Inc. file an appropriate registration statement under the Securities Act for the
resale of the Warrant Shares by the Lenders. The Lenders together will have only
one demand registration right; however, (I) if the underwriter cuts back on the
number of shares to be marketed, the Lenders together shall be entitled to an
additional demand registration right, and (ii) if an S-3 registration is
available, the Lenders' demand registration right shall be unlimited.

     IGI, Inc. will use its best efforts to as soon as practicable following
such demand cause such registration statement (which shall specifically permit
sales either thereunder or under Rule 144 if it becomes available at any time
during the period such registration statement is effective) to become effective,
and to keep such registration statement effective until the earlier of (a) the
resale of all of the Warrant Shares by the Lenders; or (b) the later of (as may
be applicable) (i) 120 days from the initial effective date of such registration
statement; (ii) the date which is one year from the date the Warrants are issued
to the Lenders; and (iii) the date as of which the resale of all of the Warrant
Shares has been permissible under Rule 144 for a continuous 120 day period
[without regard to the volume limitations set forth in Rule 144(e) and assuming
only for purposes of determining permissibility under this clause (iii)
(regardless of whether the Warrants are exercised in a cashless exercise) that
all Warrants were exercised in full in cashless exercises as of the respective
dates when such Warrants were first exercisable]. IGI, Inc. will also use its
best efforts to at all times while the Warrants or Warrant Shares are held by
the Lenders to comply with the current public information conditions of Rule
144(c).

     The Lenders will also be granted "piggy-back" registration rights for as
long as they own Warrant Shares.

     IGI, Inc. agrees to list the Warrant Shares on the American Stock Exchange.

                                      13
<PAGE>
 
                                 EXTENSION FEE
                                 -------------

     10.  In consideration of the Lenders' agreement to enter into this
Agreement, the Borrowers shall pay to Fleet, as agent on behalf of the Lenders,
an extension fee (the "Extension Fee") in the sum of $250,000.00 by bank
cashiers' check, certified check, federal funds wire transfer, or direct debit
from the General Account or the Collection Account as follows:

          (a)  $60,000.00 on or before the execution of this Agreement;

          (b)  $50,000.00 on or before September 30, 1998; and

          (c)  $70,000.00 on or before December 24, 1998;

          (d)  $70,000.00 on or before March 24, 1999.

Each portion of the Extension Fee shall be fully earned as of its due date and
shall be distributed to the Lenders on a pro rata basis as a fee and not applied
to the Obligations.

     Notwithstanding the foregoing, payment of the portion of the Extension Fee
due on September 30, 1998 shall be deferred in the event the Borrowers have
delivered to the Lenders on or before September 30, 1998, a commitment letter
reasonably satisfactory to the Lenders, in their discretion, contemplating
payment in full of all outstanding obligations under the Loan Documents on or
before October 31, 1998, which commitment letter is issued by a financial
institution reasonably acceptable to the Lenders and is subject only to
documentation with no further contingencies. If the Borrowers satisfy their
outstanding obligations to the Bank under the Loan Documents in full on or
before October 31, 1998, the portion of the Extension Fee payable on September
30, 1998, December 24, 1998, and March 24, 1999 shall be waived. If the
Borrowers fail to satisfy their outstanding obligations to the Lenders under the
Loan Documents in full on or before October 31, 1998, the portion of the
Extension Fee otherwise payable on September 30, 1998 shall be due and payable
in full on October 31, 1998, and the portion of the Extension Fee due and
payable on December 24, 1998 and on March 24, 1999 shall remain due and payable
in full on December 24, 1998 and March 24, 1999, respectively.

     Similarly, payment of the portion of the Extension Fee due on December 24,
1998 shall be deferred in the event the Borrowers have delivered to the Lenders
on or before December 24, 1998, a commitment letter reasonably satisfactory to
the Lenders, in their discretion, contemplating payment in full of all
outstanding obligations under the Loan Documents on or before January 24, 1999,
which commitment letter is issued by a financial institution reasonably
acceptable to the Lenders and is subject only to documentation with no further
contingencies. If the Borrowers satisfy their outstanding obligations to the
Lenders under the Loan Documents in full on or before January 24,

                                       14
<PAGE>
 
1999, the portion of the Extension Fee payable on December 24, 1998, and March
24, 1999 shall be waived. If the Borrowers fail to satisfy their outstanding
obligations to the Lenders under the Loan Documents in full on or before January
24, 1999, the portion of the Extension Fee otherwise payable on December 24 1998
shall be due and payable in full on January 24, 1999, and the portion of the
Extension Fee due and payable on March 24, 1999 shall remain due and payable in
full on March 24, 1999 unless the outstanding obligations to the Lenders under
the Loan Documents are paid in full prior to March 24, 1999, in which event, the
March 24, 1999 payment shall be waived.

                                  AGENT'S FEE
                                  -----------

     11.  In consideration of Fleet's agreement to enter into this Agreement and
to continue to administer the Loan Arrangements as agent on behalf of the
Lenders, the Borrowers shall pay to Fleet a monthly $5,000.00 agent's fee
commencing March 1, 1998 and continuing on the 1st day of each month thereafter.
The agent's fee for each month shall be fully earned as of the first (1st) day
of that month, and shall be retained by Fleet as a fee and shall not be applied
in reduction of the Obligations. The agent's fees earned as of March 1, 1998 and
April 1, 1998, in the aggregate amount of $10,000.00, shall be paid to Fleet
upon the execution of this Agreement.

                              FINANCIAL COVENANTS
                              -------------------

     12.  In addition to all other covenants contained in the Loan Documents,
during the term of this Agreement, the Borrowers shall at all times comply with
the following covenants:

          (a)  Minimum Eligible Accounts Receivable and Minimum Eligible
               ----------------------------------------------------------
Inventory:  The Borrowers shall maintain, at all times, combined "Minimum
- ---------                                                                
Eligible Accounts Receivable" and "Minimum Eligible Inventory" of
$11,000,000.00.

                    (i)  "Minimum Eligible Accounts Receivable" shall include
          both "Eligible Domestic Accounts Receivable" and "Eligible Foreign
          Accounts Receivable". "Eligible Domestic Accounts Receivable" shall
          mean invoices for domestic shipments and services less than ninety
          (90) days old and otherwise reasonably acceptable to the Lenders.
          "Eligible Foreign Accounts Receivable" shall mean invoices for
          international shipments and services not more than sixty (60) days
          past due and otherwise reasonably acceptable to the Lenders.

                    (ii) "Eligible Inventory" shall mean the lesser of (x)
          $6,000,000.00 or (y) gross inventory calculated on a FIFO basis less
          (a)work-in-process, (b) cartons, labels, and obsolescence reserves and
          (c) any other reserves reasonably deemed necessary by the Lenders.
          Until

                                       15
<PAGE>
 
          further notice from Fleet on behalf of the Lenders, the portion of
          work-in-process inventory consisting of completed products which has
          passed all quality assurance tests, and only awaits packaging and
          labeling, may be included in the calculation of "Eligible Inventory".

                    (1)  The Borrowers may, within forty-eight (48) hours of
          actual knowledge of any violation under this covenant, cure such
          violation by either, or combination, of the following methods:

                         (1)  Paying to the Lenders an amount sufficient to
               reduce the aggregate balance of the Fleet Line of Credit Note and
               the Mellon Line of Credit Note by an amount equal to (x)
               $11,000,000.00 minus (y) the sum of Eligible Domestic Accounts
               Receivable, plus Eligible Foreign Accounts Receivable, plus
                                                                      ----  
               Eligible Inventory, plus (z) amounts previously paid by the
               Borrowers under this subsection only in the event there shall
               exist a further decrease from the collateral level most recently
               reported. Said amounts may be reborrowed provided that the
               Borrowers remain in compliance with the terms and conditions of
               this Agreement, and the combined Minimum Eligible Accounts
               Receivable and Minimum Eligible Inventory totals at least
               $11,000,000.00; or

                         (2)  Providing the Lenders with (x) a covenant
               compliance certificate in the form of Exhibit C, demonstrating
               the Borrowers' compliance with each of the covenants contained in
               Paragraph 12, and (y) documentary evidence, including, without
               limitation, all invoices for new shipments and services,
               demonstrating the increase in the Borrowers' Eligible Accounts
               Receivable and Eligible Inventory to the required collateral
               level.

          (b)  Minimum Fixed Charge Coverage Ratio:  The Borrowers will not,
               -----------------------------------                          
as of the end of each month during the term of this Agreement, permit their
ratio of Cash Flow to Fixed Charges, measured on a rolling three (3) month
basis, to be less than the following values during the following periods on the
following dates:

<TABLE> 
<CAPTION>  
               Dates          Ratio                
               -----          -----                
               <S>            <C>                  
               5/31/98        1.00 to 1.00 
                                          
               6/30/98        1.00 to 1.00
                                          
               7/31/98        1.00 to 1.00 
</TABLE>

                                       16
<PAGE>
 
<TABLE>
               <S>            <C>
               8/31/98        1.00 to 1.00
 
               9/30/98        0.85 to 1.00
 
               10/31/98       0.85 to 1.00
 
               11/31/98       0.85 to 1.00
 
               12/31/98       0.85 to 1.00
</TABLE>

As used herein, "Cash Flow" shall be defined as earnings before interest, taxes,
depreciation, amortization, and non-cash warrant expenses. As used herein,
"Fixed Charges" shall be defined as the sum of scheduled principal payments plus
interest expense plus capital expenditures.

          (c)  Minimum Net Worth: The Borrowers shall maintain, at all times, a
               -----------------                                               
minimum "Net Worth" (as defined in accordance with generally accepted accounting
principles) which shall be determined by adding the Borrowers' Total Net Worth
as stated in the Borrowers' final, audited financial statements for the fiscal
year ended December 31, 1997 minus (a) $500,000.00, minus (b) the non-cash
                             -----                  -----
impact of any warrants granted to the Lenders, plus (c) the following amounts as
                                               ----                  
of the last day of each month:

<TABLE>
<CAPTION>
               Dates                  Amount      
               -----                  ------    
          <S>                      <C>          
          June 30, 1998            $        0.00
          September 30, 1998       $  475,000.00
          December 31, 1998        $1,025,000.00
          March 31, 1999           $1,050,000.00 
</TABLE>

          (d)  Maximum Capital Expenditures: For the period commencing
               ----------------------------                           
January 1, 1998 through and including December 31, 1998, the Borrowers shall not
incur consolidated Capital Expenditures (as defined in accordance with generally
accepted accounting principles) in excess of the following amounts for the
following periods calculated on a cumulative basis:

                                       17
<PAGE>
 
<TABLE>
<CAPTION>
               Dates                        Amount      
               -----                        ------   
          <S>                            <C>         
          1/1/98 through 6/30/98         $441,000.00
          7/1/98 through 9/30/98         $690,000.00
          10/1/98 through 12/31/98       $790,000.00 
</TABLE>

In addition, for the period commencing January 1, 1999 through and including
March 31, 1999, the Borrowers shall not incur consolidated Capital Expenditures
in excess of $180,000.00.

          (e)  Disbursements: Commencing with the month of May, 1998, and
               -------------                                             
continuing each month thereafter, cumulative cash disbursements shall not exceed
the lesser of (i) monthly cumulative cash receipts, or (ii) 120% of monthly
"Cumulative Budgeted Disbursements". "Cumulative Budgeted Disbursements" shall
be based upon the rolling thirteen (13) week cash flow forecast to be delivered
to the Lenders in accordance with the provisions of Section 13(e) below.

          (f)  Dividends:  The Borrowers shall not pay dividends, or make other
               ---------                                                       
distributions of any kind, nature, or manner to any party without the prior
written consent of Fleet on behalf of the Lenders.

          (g)  Additional Indebtedness/Liens: The Borrowers shall not incur any
               -----------------------------                                   
additional indebtedness from and after the date of this Agreement other than in
connection with the ordinary course of their business nor shall the Borrowers
grant or permit any lien or other encumbrance to exist or be placed upon any of
their assets.

                              FINANCIAL REPORTING
                              -------------------

     13.  In addition to all other reporting requirements contained in the Loan
Documents, the Borrowers shall also furnish to the Lenders the following:

          (a)  Accounts Receivable Agings and Borrowing Base Certificate: The
               ---------------------------------------------------------     
Borrowers shall submit to each of the Lenders on Wednesday of each week both (i)
Domestic and Foreign Accounts Receivable Agings and (ii) a certificate in the
form of Exhibit B annexed hereto and specifically incorporated by reference
herein and setting forth the Borrowers' compliance with Paragraph 12(a), above,
each of which (i) and (ii) shall be dated as of the last day of the immediately
preceding week. In connection with the provision of the Accounts Receivable
Agings contemplated herein, the Borrowers shall include a detailed calculation
of (x) the total value of the otherwise eligible domestic accounts receivable
wherein fifty (50%) percent or more of an individual customer accounts account
balances are in excess of ninety (90) days from the invoice date and (y) the
total value of otherwise eligible foreign accounts receivable wherein fifty
(50%) percent or more of an individual customer account balances are more than
sixty (60) days past due.

                                       18
<PAGE>
 
          (b)  Inventory Report: The Borrowers shall submit to each of the
               ----------------                                           
Lenders by the 15th of each month, a detailed inventory report dated as of the
last day of the immediately preceding month; and

          (c)  Monthly Financial Statements: The Borrowers shall submit to each
               ----------------------------                                    
of the Lenders, within forty-five (45) days of the close of a calendar month, a
consolidated and consolidating statement of profit or loss, cash flow and
balance sheet for the immediately preceding month and year-to-date period.
Simultaneously with the furnishing of such financial information, the Borrowers
shall submit to each of the Lenders, a reconciliation analysis of the actual
monthly and year-to-date results compared to the projected results set forth in
the "IGI, Inc. 1998 Updated Budget, delivered to the Lenders on March 10, 1998,
together with a detailed explanation of any and all material variances.

          (d)  Financial Statements: On or before the execution of this
               --------------------                                    
Agreement, the Borrowers shall deliver to each of the Lenders internally
prepared, draft financial statements, and a draft copy of their certified public
accountant's management letter, for the fiscal year ended December 31, 1997. The
Borrowers shall use their best efforts to deliver final original copies of
audited financial statements, together with their certified public accountant's
unqualified opinion and management letter to each of the Lenders on or before
April 15, 1998, but, in any event, shall deliver the same to each of the Lenders
no later than May 15, 1998. The final, original audited financial statements
shall be in form and substance without material adverse deviation from the draft
financial statements to be delivered to the Lenders on or before the execution
of this Agreement. The unqualified opinion may include an explanatory paragraph
with respect to U.S. Department of Agriculture actions or directives and with
respect to possible restatements of prior periods.

          (e)  Rolling Thirteen (13) Week Cash Flow Forecast: The Borrowers
               ---------------------------------------------               
shall submit to each of the Lenders, by the fifteenth (15) day of each month, an
updated rolling thirteen (13) week cash flow forecast, similar in form and
substance to the report provided to the Lenders at the meeting on March 10,
1998, which report is incorporated herein by reference, whereby the first four
(4) week period shall be deleted and updated with the four (4) week period
immediately succeeding the last week included in the previous report.

          (f)  Business Plan/Refinancing:  On or before May 31, 1998, the
               -------------------------                                 
Borrowers shall submit to each of the Lenders, (i) a business plan encompassing
the fiscal periods 1998 through 2000, which business plan shall include, at a
minimum, monthly pro forma profit and loss statements, balance sheets and cash
flow statements; and (ii) a schedule of their proposed efforts to coordinate a
refinancing of the entire outstanding indebtedness due and owing to the Lenders
under the Loan Documents which schedule shall include, without limitation,
detailed action steps and target dates with respect to obtaining alternative
financing arrangements. 

                                       19
<PAGE>
 
          (g)  Certifications:  All such financial reporting shall be certified
               --------------                                                  
(to the best knowledge and belief of the certifying officer) both as to the
accuracy and compliance with required covenants by IGI's Chief Executive
Officer, Chief Operating Officer, Chief Financial Officer, or Treasurer. Any
such certification shall be deemed to have been made on behalf of each of the
Borrowers.

                             FINANCIAL CONSULTANT
                             --------------------

     14.  The Borrowers shall continue to employ Executive Sounding Board
Associates, Inc., or such other turnaround consultant which the Borrowers wish
to employ and which is reasonably acceptable to the Lenders in their discretion
for a minimum of fifty (50) hours per week, whose duties shall include, without
limitation, interim management. The Borrowers further acknowledge and agree that
Executive Sounding Board, Inc. and/or such other turnaround consultant retained
by the Borrowers shall at all times make available to the Lenders such financial
or other information which the Lenders in their discretion may reasonably
request concerning the Borrowers. Upon the hiring of both a permanent
President/Chief Operating Officer and Chief Financial Officer, the employment of
Executive Sounding Board Associates, Inc., or such other turnaround consultant
acceptable to the Lenders, may be reduced to twenty-four (24) hours per week.

                             ADDITIONAL DOCUMENTS
                             --------------------

     15.  Upon the execution of this Agreement, and at any time thereafter, the
Borrowers shall also execute and deliver to the Lenders such additional
documentation as the Lenders in their discretion may reasonably require in order
to grant and/or perfect the Lenders' security interest in all assets of the
Borrowers, including, without limitation, all (i) motor vehicles, (ii)
intellectual property including, without limitation, all patents and/or
trademarks, and (iii) license agreements. The Borrowers represent that all
locations where inventory is located and all patents or other intellectual
property in which the Borrowers have an interest are listed, respectively, on
Exhibit "D" and Exhibit "E" each as annexed hereto and specifically incorporated
by reference herein. In addition, on or before April 30, 1998, the Borrowers
shall submit to the Lenders for their review and consideration a minimum of one
(1) proposal to factor the Borrowers' foreign accounts receivable and obtain a
minimum of one (1) proposal for the issuance of foreign credit insurance. On or
before May 31, 1998 the Borrowers shall (i) obtain for the benefit of the
Lenders foreign credit insurance in form and substance reasonably satisfactory
to the Lenders, wherein the Lenders shall be named as Loss Payee, or (ii) enter
into an arrangement to factor the Borrowers' foreign accounts receivable, upon
such terms and conditions as are reasonably satisfactory to the Lenders.

                                       20
<PAGE>
 
                            COMPLIANCE CERTIFICATE
                            ----------------------

     16.  Upon or before the execution of this Agreement, and within forty five
(45) days of each month end during the term of this Agreement, the Borrowers
shall deliver to each of the Lenders, a covenant compliance certificate in the
form of Exhibit C setting forth the Borrowers' compliance with each of the
financial covenants referenced in Paragraph 12, above.

                        APPRAISALS; FIELD EXAMINATIONS
                        ------------------------------

     17.  The Borrowers agree to cooperate with the Lenders to enable the
Lenders to obtain updated appraisals of all real estate and personal property
owned by the Borrowers and to conduct independent field examinations of the
Borrowers' books and records which cooperation shall include, without
limitation, providing the Lenders and/or their appraisers, examiners and/or
other representatives, reasonable access to such property and shall make
available such financial and/or other information regarding the property, books
and records, and other assets of the Borrowers as may be reasonably requested by
the Lenders in their discretion. The Borrowers shall reimburse the Lenders for
all reasonable out of pocket costs and expenses of independent third parties
incurred by the Lenders in connection with such appraisals and field
examinations.

                               WAIVER OF CLAIMS
                               ----------------

     18.  The Borrowers hereby acknowledge and agree that they have no offsets,
defenses, claims, or counterclaims against the Lenders or the Lenders' officers,
directors, employees, attorneys, representatives, predecessors, affiliates,
successors, and assigns with respect to the Obligations, or otherwise, and that
if the Borrowers now have, or ever did have, any offsets, defenses, claims, or
counterclaims against the Lenders or the Lenders' officers, directors,
employees, attorneys, representatives, predecessors, affiliates, successors, and
assigns, whether known or unknown, at law or in equity, from the beginning of
the world through this date and through the time of execution of this Agreement,
all of them are hereby expressly WAIVED, and the Borrowers each hereby RELEASE
the Lenders and the Lenders' officers, directors, employees, attorneys,
representatives, predecessors, affiliates, successors, and assigns from any
liability therefor, to the extent allowed by applicable laws.

              RATIFICATION OF LOAN DOCUMENTS; FURTHER ASSURANCES
              --------------------------------------------------

     19.  (a)  THE BORROWERS HEREBY RATIFY, CONFIRM, AND REAFFIRM ALL AND
SINGULAR THE TERMS AND CONDITIONS OF THE LOAN DOCUMENTS, AND SPECIFICALLY
RATIFY, CONFIRM, AND REAFFIRM THEIR AUTHORITY TO EXECUTE SAME. THE BORROWERS
FURTHER ACKNOWLEDGE AND AGREE THAT, EXCEPT AS SPECIFICALLY MODIFIED IN THIS
AGREEMENT, ALL TERMS AND CONDITIONS OF THOSE DOCUMENTS, INSTRUMENTS, AND
AGREEMENTS SHALL REMAIN

                                       21
<PAGE>
 
IN FULL FORCE AND EFFECT.

          (b)  THE BORROWERS SHALL, FROM AND AFTER THE EXECUTION OF THIS
AGREEMENT, EXECUTE AND DELIVER TO THE LENDERS WHATEVER ADDITIONAL DOCUMENTS,
INSTRUMENTS, AND AGREEMENTS THAT THE LENDERS MAY REASONABLY REQUIRE IN ORDER TO
VEST OR PERFECT THE LOAN DOCUMENTS AND THE COLLATERAL GRANTED THEREIN MORE
SECURELY IN THE LENDERS AND TO OTHERWISE GIVE EFFECT TO THE TERMS AND CONDITIONS
OF THIS AGREEMENT, INCLUDING, WITHOUT LIMITATION, A COMPLETE AMENDMENT AND
RESTATEMENT OF THE LOAN DOCUMENTS WITHIN THIRTY (30) DAYS OF ANY REQUEST BY THE
LENDERS FOR ANY SUCH ADDITIONAL DOCUMENTATION.

                               EVENTS OF DEFAULT
                               -----------------

     20.  The occurrence of any one or more of the following events shall
constitute an event of default (hereinafter, an "Event of Default") under this
Agreement:

          (a)  The failure of the Borrowers to pay or deposit any amounts due
hereunder or under any of the Loan Documents as and when due;

          (b)  The failure of the Borrowers to comply with any other term or
condition of this Agreement (which default, other than a default under Paragraph
12(a), may be cured within three (3) days in connection with any non-monetary
default capable of being cured);

          (c)  The filing of a petition for relief by or against any one or more
of the Borrowers under the United States Bankruptcy Code;

          (d)  The existence or issuance of any directive or action by either
the United States Department of Agriculture or Office of the Inspector General
of the United States, or any other governing body, which materially adversely
impact the Borrowers' ability to manufacture, sell, or ship products, or
otherwise have a Material Adverse Effect (defined below) on the Borrowers'
financial condition or with the passage of time could have a material adverse
impact on the Borrowers' financial condition, assets, operating status, or
projected financial condition. For the purposes of this Agreement, "Material
Adverse Effect" shall be defined as any material adverse effect on the
Borrowers' financial condition, assets, operating status or projected financial
condition or any fact or circumstance that, singly or in the aggregate with any
fact or circumstance, has a reasonable likelihood of resulting in or leading to
the inability of the Borrowers to perform in any material respect their
obligations under this Agreement or under any Loan Document or the inability of
Agent and/or Lenders to enforce in any material respect the rights purported to
be granted to them under this Agreement or any Loan Document or which have a
reasonable likelihood of having a material adverse effect on the ability of the

                                       22
<PAGE>
 
Borrowers to effectuate (including hindering or unduly delaying) the
transactions contemplated by this Agreement and the loan Documents on the terms
contemplated hereby and thereby.

          (e)  The occurrence of any further event of default under, and as
defined in, any of the Loan Documents.

                              RIGHTS UPON DEFAULT
                              -------------------

     21.  Upon the occurrence of any Event of Default, all Obligations shall
become immediately due and payable in full, without demand, notice, or protest,
all of which are hereby expressly WAIVED. In addition, upon the occurrence of
any such Event of Default, the Lenders may immediately commence enforcing their
rights and remedies pursuant to the Loan Documents and otherwise. Further, upon
the occurrence of an Event of Default, interest shall accrue on the outstanding
principal balance of the Obligations at the default rate of interest set forth
in the Loan Documents.

                      REIMBURSEMENT OF COSTS AND EXPENSES
                      -----------------------------------

     22.  Upon the execution of this Agreement, the Borrowers shall pay to the
Lenders an amount equal to any and all reasonable attorneys' fees and expenses
incurred in connection with this matter through the date of this Agreement. In
addition, upon Demand, or upon the occurrence of any Event of Default, as
defined in Paragraph 20, above, the Borrowers shall reimburse the Lenders for
any and all reasonable costs and expenses, including, without limitation, all
reasonable costs, expenses and fees of all accountants, appraisers, auditors and
other representatives of the Lenders, and costs of collection (including
attorneys' fees) hereafter incurred by the Lenders in connection with the
clarification, modification, protection, preservation, and enforcement by the
Lenders of their rights and remedies.

                                    NOTICES
                                    -------

     23.  Any notices required to be sent to the Lenders and the Borrowers shall
be forwarded via recognized overnight courier, addressed as follows:

          If to the Lenders:   Fleet National Bank
                               40 Westminster Street
                               Mail Code: RI OP TO5A
                               Providence, Rhode Island 02901
                               Attn: Mr. Daniel D. Butler, Vice President
                               Telephone: (401) 459-4678
                               Fax: (401) 459-4963

                                       23
<PAGE>
 
          With a copy to:        Steven T. Greene, Esquire         
                                 Riemer & Braunstein              
                                 Three Center Plaza               
                                 Boston, Massachusetts 02108      
                                 Telephone: (617) 523-9000        
                                 Fax: (617) 723-6831              
                                                                  
                                 Mellon Bank                       
                                 Mellon Bank Center                
                                 1735 Market Street, P.O. Box 7899 
                                 Philadelphia, PA   19101-7899     
                                 Telephone: 215-553-2614           
                                 Fax: 215-553-4560                 
                                 Attn: Susan C. Saxer              
                                 Senior Vice President             
                                                                   
          With a copy to:        Peter Leibundgut, Esquire         
                                 Blank, Rome and Comisky           
                                 Woodland Falls Corporate Park     
                                 210 Lake Drive East               
                                 Cherry Hill, New Jersey   08002   
                                 Telephone: 609-779-3644           
                                 Fax: 609-779-7647                 


          If to the Borrowers:   IGI, Inc.
                                 IGEN, Inc.                    
                                 Immunogenetics, Inc.          
                                 Blood Cells, Inc.             
                                 Wheat Road and Lincoln Avenue 
                                 Buena, New Jersey 08310       
                                 Attn: Kevin Bratton, Treasurer
                                 Telephone: (609) 697-1441     
                                 Fax: (609) 697-1001            

                                       24
<PAGE>
 
          With a copy to:        Paul Brountas, Esquire     
                                 Hale and Dorr, LLP         
                                 60 State Street            
                                 Boston, Massachusetts 02109
                                 Telephone: (617) 526-6000  
                                 Fax: (617) 526-5000         



                                    WAIVERS
                                    -------

     24.  Non-Interference.  From and after the occurrence of any Event of
          ----------------                                                
Default, the Borrowers agree not to interfere with the exercise by the Lenders
of any of their rights and remedies. The Borrowers further agree that they shall
not seek to distrain or otherwise hinder, delay, or impair the Lenders' lawful
efforts to realize upon the Collateral, or otherwise to enforce their rights and
remedies pursuant to the Loan Documents. This provision shall be specifically
enforceable by the Lenders.

     25.  Automatic Stay.  The Borrowers agree that upon the filing of any
          --------------                                                  
Petition for Relief by or against any one or more of the Borrowers under the
United States Bankruptcy Code, the Lenders shall be entitled to file a motion
for immediate and complete relief from the automatic stay, and the Lenders shall
be permitted to proceed to protect and enforce their rights and remedies under
applicable law.

     26.  Jury Trial.  The Borrowers hereby make the following waiver knowingly,
          ----------                                                 
voluntarily, and intentionally, and understand that the Lenders, in entering
into this Agreement or making any financial accommodations to the Borrowers,
whether now or in the future, are relying on such waiver: TO THE EXTENT ALLOWED
BY APPLICABLE LAW, THE BORROWERS HEREBY IRREVOCABLY WAIVE ANY PRESENT OR FUTURE
RIGHT TO A JURY IN ANY TRIAL OF ANY CASE OR CONTROVERSY IN WHICH THE LENDERS
BECOME A PARTY (WHETHER SUCH CASE OR CONTROVERSY IS INITIATED BY OR AGAINST THE
LENDERS OR IN WHICH THE LENDERS ARE JOINED AS A PARTY LITIGANT), WHICH CASE OR
CONTROVERSY ARISES OUT OF, OR IS IN RESPECT OF, ANY RELATIONSHIP BETWEEN THE
BORROWERS, OR ANY OTHER PERSON, AND THE LENDERS.

                               ENTIRE AGREEMENT
                               ----------------

     27.  This Agreement shall be binding upon the Borrowers and the Borrowers'
officers, directors, employees, representatives, successors,and assigns, and
shall inure to the benefit of the Lenders and the Lenders' successors and
assigns. This Agreement and the Loan Documents and all documents, instruments,
and agreements executed in connection herewith

                                       25
<PAGE>
 
or therewith incorporate all of the discussions and negotiations between the
Borrowers and the Lenders, either expressed or implied, concerning the matters
included herein and in such other documents, instruments and agreements, any
statute, custom, or usage to the contrary notwithstanding. No such discussions
or negotiations shall limit, modify, or otherwise affect the provisions hereof.
No modification, amendment, or waiver of any provision of this Agreement, or any
provision of any other document, instrument, or agreement between the Borrowers
and the Lenders shall be effective unless executed in writing by the party to be
charged with such modification, amendment, or waiver, and if such party be the
Lenders, then by a duly authorized officer thereof.

                           CONSTRUCTION OF AGREEMENT
                           -------------------------

     28.  (a)  This Agreement and all other documents, instruments, and
agreements incidental hereto and all rights and obligations hereunder and
thereunder, including matters of construction, validity, and performance, shall
be governed by and construed in accordance with the law of the State of New
Hampshire and are intended to take effect as sealed instruments.  The Borrowers
hereby consent to the jurisdiction of the Courts of the State of New Hampshire
for all purposes with respect to this Agreement and the Obligations.  The
captions of this Agreement are for convenience purposes only, and shall not be
used in construing the intent of the Lenders and the Borrowers under this
Agreement.  In the event

                                      26
<PAGE>
 
of any inconsistency between the provisions of this Agreement and any other
document, instruments, or agreement entered into by and between the Lenders and
the Borrowers, the provisions of this Agreement shall govern and control.

          (b) The Borrowers further acknowledge and agree that the Lenders and
the Borrowers have prepared this Agreement and all documents, instruments, and
agreements incidental hereto and with the aid and assistance of their respective
counsel.  Accordingly, when interpreting this Agreement and all such other
documents, instruments, and agreements, each of them shall be deemed to have
been drafted by the Lenders and the Borrowers and shall not be construed against
either the Lenders or the Borrowers.

                         ILLEGALITY OR UNENFORCEABILITY
                         ------------------------------

     29.  Any determination that any provision or application of this Agreement
is invalid, illegal, or unenforceable in any respect, or in any instance, shall
not effect the validity, legality, or enforceability of any such provision in
any other instance, or the validity, legality, or enforceability of any other
provision of this Agreement.

                            COMPREHENSIVE AGREEMENT
                            -----------------------

     30.  The Borrowers warrant and represent to the Lenders that the Borrowers:
(i) have read and understand all of the terms and conditions of this Agreement,
(ii) intend to be bound by the terms and conditions of this Agreement, (iii) are
executing this Agreement freely and voluntarily, without duress, after
consultation with independent counsel of their own selection.

     IN WITNESS WHEREOF, this Agreement has been executed this 29 day of
April, 1998.

FLEET BANK-N.H.                     IGI, INC.

By: /s/ Daniel B. Butler            By:  /s/ Edward B. Hager
    ----------------------------        ---------------------------
Title: Banking Officer              Title: Chairman
       -------------------------           ------------------------

MELLON BANK                         IGEN, INC.

By: /s/ Walter Letts                By: /s/ George P. Warren, Jr.
   -----------------------------        --------------------------
Title:  Vice President              Title: Secretary
       -------------------------          ------------------------

                                    IMMUNOGENETICS, INC.

                                    By: /s/ Edward B. Hager
                                        --------------------------


                                      27
<PAGE>
 
                                    Title: Chairman
                                          ------------------------


                                    BLOOD CELLS, INC.

                                    By: /s/ Edward B. Hager
                                        ------------------------------
                                    Title: Chairman
                                           ---------------------------

                                      28
<PAGE>
 
                             STATE OF RHODE ISLAND

______________, ss                                 April ____,
1998

     Then personally appeared the above named ___________________, the
_______________ of Fleet Bank- N.H. and acknowledged the foregoing to be the
free act and deed of Fleet Bank- N.H., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:

                             STATE OF ___________

______________, ss                                 April ____,
1998

     Then personally appeared the above named ________________ , the
____________ of Mellon Bank, N.A. and acknowledged the foregoing to be the free
act and deed of Mellon Bank, N.A., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:


                           STATE OF ________________

_____________, ss                                  April ____,
1998

     Then personally appeared the above named __________________________, the
________________ of IGI, Inc. and acknowledged the foregoing to be the free act
and deed of IGI, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:

                                      29
<PAGE>
 
                           STATE OF ________________

_____________, ss                                  April ____,
1998

     Then personally appeared the above named __________________________, the
________________ of IGEN, Inc. and acknowledged the foregoing to be the free act
and deed of IGEN, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:


                           STATE OF ________________

_____________, ss                                  April ____,
1998

     Then personally appeared the above named __________________________, the
________________ of Immunogenetics, Inc. and acknowledged the foregoing to be
the free act and deed of Immunogenetics, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:
 

                           STATE OF ________________

_____________, ss                             April ____,
1998

     Then personally appeared the above named __________________________, the
________________ of Blood Cells, Inc. and acknowledged the foregoing to be the
free act and deed of Blood Cells, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:

                                      30

<PAGE>

                                                                   EXHIBIT 10.23

                             FORBEARANCE AGREEMENT
                             ---------------------

     This Forbearance Agreement (hereinafter, the "Agreement") is made this
_19th__ day of August, 1998 by and among:

          FLEET BANK-N.H., a banking and trust company organized under the laws
          of New Hampshire ("Fleet");

          MELLON BANK, N.A., a national banking association ("Mellon"); and

          IGI, INC., a Delaware corporation ("IGI"), IGEN, INC., a Delaware
          corporation ("IGEN"); IMMUNOGENETICS, INC., a Delaware corporation
          ("Immunogenetics"); and BLOOD CELLS, INC., a Delaware corporation
          ("BCI").

Fleet and Mellon are hereinafter sometimes individually referred to as a
"Lender" and collectively referred to as the "Lenders", and IGI, IGEN,
Immunogenetics, BCI, and each of their subsidiaries as set forth on Exhibit "A"
annexed hereto and specifically incorporated by reference herein,  are
hereinafter sometimes individually referred to as a "Borrower" and collectively
referred to as the "Borrowers".

                                  BACKGROUND
                                  ----------

     Reference is made to certain Loan Arrangements (hereinafter, the "Loan
Arrangements") entered into by and between the Lenders and the Borrowers
evidenced by, among other things, the following documents, instruments, and
agreements (hereinafter, singly and collectively, the "Loan Documents"):

     (a) Fourth Amended and Restated Line of Credit Note dated September 30,
1997 in the original principal amount of $6,600,000.00 made by the Borrowers
payable to Fleet (the "Fleet Line of Credit Note");

     (b) Fourth Amended and Restated Line of Credit Note dated September 30,
1997 in the original principal amount of $5,400,000.00 made by the Borrowers
payable to Mellon (the "Mellon Line of Credit Note");

     (c) Third Amended and Restated Revolving Credit Note dated March 27, 1997
in the original principal amount of $6,171,428.40 made by the Borrowers payable
to Fleet (the "Fleet Term Note");

     (d) Third Amended and Restated Revolving Credit Note dated March 27, 1997
in the original principal amount of $4,114,285.60 made by the Borrowers payable
to Mellon (the "Mellon Term Note");
<PAGE>
 
     (e) Second Amended and Restated Loan Agreement dated December 13, 1995 by
and among the Lenders and the Borrowers, as amended by a certain First Amendment
to Second Amended and Restated Loan Agreement dated March 27, 1996, a certain
Second Amendment to Second Amended and Restated Loan Agreement dated as of June
26, 1996, a certain Third Amendment to Second Amended and Restated Loan
Agreement dated August 13, 1996, a certain Fourth Amendment to Second Amended
and Restated Loan Agreement dated as of November 13, 1996, a certain Fifth
Amendment to Second Amended and Restated Loan Agreement dated March 27, 1997, a
certain Sixth Amendment to Second Amended and Restated Loan Agreement dated June
30, 1997, a certain Seventh Amendment to Second Amended and Restated Loan
Agreement dated July 31, 1997, and a certain Eighth Amendment to Second Amended
and Restated Loan Agreement dated as of September 30, 1997 (hereinafter, as
amended and in effect, the "Loan Agreement");

     (f) A certain Security Agreement granted by, among others, IGI, IGEN and
Immunogenetics, in favor of Fleet dated December 20, 1990;

     (g) A certain Security Agreement - Intellectual Property granted by, among
others, IGI, IGEN and Immunogenetics in favor of Fleet dated December 20, 1990;

     (h) A certain Security Documents Modification Agreement entered into by,
among others, the Borrowers and the Lenders dated as of December 13, 1995;

     (i) A certain Joinder, Assumption and Security Documents Modification
Agreement dated as of May 12, 1992 entered into by, among others, the Borrowers,
and Fleet;

     (j) A certain Mortgage granted by Immunogenetics in favor of Fleet dated
December 20, 1990 encumbering certain property located in the borough of Buena,
Atlantic County, New Jersey;

     (k) A certain Mortgage granted by Immunogenetics in favor of Fleet dated
May 12, 1992 encumbering certain property located in the township of Buena
Vista, Atlantic County, New Jersey;

     (l) A certain Mortgage granted by Immunogenetics in favor of Fleet dated
December 20, 1990 encumbering certain property located in the city of Vineland,
Cumberland County, New Jersey;

     (m) A certain Collateral Assignment of Lessee's Interest in Leases executed
by, among others, Immunogenetics in favor of Fleet dated December 20, 1990;

     (n) A certain Stock Pledge Agreement executed by, among others, IGI and
IGEN in favor of Fleet dated December 20, 1990; and

                                       2
<PAGE>
 
     (o) A certain Conditional Assignment of Contracts granted by, among others,
IGI, IGEN and Immunogenetics in favor of Fleet dated December 20, 1990.

     (p) A certain Extension Agreement dated April 29, 1998 (the "Extension
Agreement").

     The Borrowers acknowledge and agree that (i) the Borrowers are in default
of the terms and conditions of the Loan Documents (ii)all amounts outstanding
under the Loan Documents are due and owing in full, and (iii) the Lenders have
no obligation to make any advances under the Loan Documents.  The Borrowers have
requested that the Lenders forbear from enforcing their rights and remedies
under the Loan Documents upon default and the Lenders have agreed, but only upon
the terms and conditions set forth herein.

     Accordingly, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, it is hereby agreed by and among
the Lenders and the Borrowers as follows:

                        ACKNOWLEDGMENT OF INDEBTEDNESS
                        ------------------------------

          1.   (a)  The Borrowers hereby acknowledge and agree that they are
jointly and severally liable to the Lenders for the following amounts which are
outstanding under the Loan Documents as of August 18, 1998:

 
          Fleet Line of Credit Note:
          -------------------------
      
          Principal                                  $6,600,000.00
                                                     -------------
          Interest                                   $   35,841.67
                                                     -------------
               Subtotal                              $6,635,841.67
                                                     -------------
 
          Mellon Line of Credit Note:
          --------------------------
 
          Principal                                  $5,400,000.00
                                                     -------------
          Interest                                   $   29,325.00
                                                     -------------
               Subtotal                              $5,429,325.00
 
          Fleet Term Note:
          ---------------               
 
          Principal                                  $3,994,285.20
          Interest                                   $   21,691.19
                                                     -------------
               Subtotal                              $4,015,976.39

                                       3
<PAGE>
 
    Mellon Term Note:
    -----------------

 
       Principal                             $ 2,662,856.80
       Interest                              $    14,460.79
                                             --------------
               Subtotal                      $ 2,677,317.59
                      TOTAL................  $18,758,460.65
                                             --------------

          (b) The Borrowers further acknowledge and agree that they are each
jointly and severally liable to the Lenders for all interest accruing under the
Loan Documents from and after April 23, 1998, and for all late fees, costs,
expenses, and costs of collection (including attorneys' fees) heretofore or
hereafter incurred by the Lenders in connection herewith.  (Hereinafter, all
amounts due as set forth in this Paragraph 1 shall be referred to collectively
as the "Obligations").

                               REPAYMENT OF DEBT
                               -----------------

  2.      (a)  Fleet Line of Credit Note and Mellon Line of Credit Note.
               -------------------------------------------------------- 

          (i) From and after the execution of this Agreement, on the 1st day of
          each month, the Borrowers shall pay to the Lenders a monthly interest
          payment equal to the cash portion of all accrued interest on the
          principal balance of the Fleet Line of Credit Note and the Mellon Line
          of Credit Note, with the cash portion of the interest calculated at a
          floating rate equal to the aggregate of Fleet's Prime Rate (as such
          Prime Rate may be announced by Fleet from time to time) plus the
          following percentages scheduled under "cash portion"for the time
          periods set forth below each calculated on a per annum basis:
<TABLE>
<CAPTION>
           Time Period         Cash Portion   Accrued Portion   Total Interest
          ------------        -------------  ----------------  ---------------
          <S>                 <C>            <C>               <C>
          From 8/1/98         Prime Rate                 1.0%  Prime Plus
          through 9/30/98     plus 2.50%                       3.5%
 
          From 10/1/98        Prime Rate                 2.0%  Prime Plus
          through 11/30/98    plus 2.50%                       4.5%
 
          From 12/1/98        Prime Rate                 3.0%  Prime Plus
          through 1/31/99     plus 2.50%                       5.5%
</TABLE>

               Additional interest shall accrue on the principal balance of the
          Fleet Line of Credit Note and the Mellon Line of Credit Note at the
          rate scheduled above under "accrued portion" on a per annum basis.
          The "accrued portion" of the interest charges shall be paid by the
          Borrowers upon the earlier of (x) satisfaction of the Obligations, in
          their entirety, or, (y) the Termination Date.  In the event the
          Borrowers have delivered to the Lenders a commitment letter on or
          before

                                       4
<PAGE>
 
          September 30, 1998 reasonably satisfactory to the Lenders, in their
          discretion, contemplating satisfaction of all obligations due and
          owing to the Lenders under the Loan Documents on or before October 31,
          1998, which commitment letter is issued by a financial institution
          and/or other party reasonably acceptable to the Lenders and is subject
          only to documentation and no further contingencies other than such
          contingencies acceptable to the Lenders as are ordinary and necessary
          in transactions of similar type, the interest rate increase scheduled
          for October 1, 1998 shall be deferred. In the event that the Borrowers
          do not satisfy their entire outstanding obligations to the Lenders
          under the Loan Documents on or before October 31, 1998, the October 1,
          1998 scheduled interest rate increase to the Prime Rate plus 4.5%
          shall be effective retroactive to October 1, 1998. In the event that
          the Borrowers do satisfy their entire outstanding obligations to the
          Lenders under the Loan Documents on or before October 31, 1998, the
          October 1, 1998 scheduled interest rate increase shall be waived.

               Similarly if such commitment letter is received by the Lenders on
          or before November 30, 1998 contemplating satisfaction of all
          obligations due and owing to the Lenders under the Loan Documents on
          or before December 31, 1998, the interest rate increase scheduled for
          December 1, 1998 shall be deferred.  In the event that the Borrowers
          do satisfy their entire outstanding obligations to the Lenders under
          the Loan Documents on or before December 31, 1998, the December 1,
          1998 scheduled interest rate increase shall be waived.  In the event
          the Borrowers do not satisfy their entire outstanding obligations to
          the Lenders under the Loan Documents on or before December 31, 1998,
          the December 1, 1998 scheduled interest rate increase to the Prime
          Rate plus 5.5 % shall be effective retroactive to December 1, 1998.

               (ii) Any amounts paid to cure the financial covenant default
          pursuant to Paragraph 12(a)(iii) of the Extension Agreement, shall be
          applied on a pro rata basis in reduction of the principal balance of
          the Fleet Line of Credit Note and the Mellon Line of Credit Note.

               (iii)  The entire principal balance, interest (accrued and
          hereafter accruing), costs, expenses, and other charges due in
          connection therewith shall be paid in full by the Borrowers on or
          before 5:00 P.M. eastern standard time on January 31, 1999, it being
          expressly acknowledged and agreed that TIME IS OF THE ESSENCE.


          (b) Fleet Term Note and Mellon Term Note.
              ------------------------------------ 

                                       5
<PAGE>
 
               (i) From and after the execution of this Agreement, on the 1st
          day of each month, the Borrowers shall pay to the Lenders a monthly
          interest payment equal to the cash portion of the interest on the
          principal balance of the Fleet Term Note and the Mellon Term Note,
          with the cash portion of the interest calculated at a floating rate
          equal to the aggregate of Fleet's Prime Rate (as such Prime Rate may
          be announced by Fleet from time to time) plus the following
          percentages for the time period set forth below each calculated on a
          per annum basis:

<TABLE>
<CAPTION>
 
 
          Time Period         Cash Portion   Accrued Portion   Total Interest
          -----------         ------------   ---------------   -- ------------
          <S>                 <C>            <C>               <C>
          From 8/1/98         Prime Rate                 1.0%  Prime Plus
          through 9/30/98     plus 2.50%                       3.5%
 
          From 10/1/98        Prime Rate                 2.0%  Prime Plus
          through 11/30/98    plus 2.50%                       4.5%
 
          From 12/1/98        Prime Rate                 3.0%  Prime Plus
          through 1/31/99     plus 2.50%                       5.5%
</TABLE>

               Additional interest shall accrue on the principal balance of the
          Fleet Term Note and the Mellon Term Note at the rate scheduled above
          under "accrued Portion" on a per annum basis.  The "accrued portion"
          of the interest charges shall be paid by the Borrowers upon the
          earlier of (x) satisfaction of the Obligations, in their entirety, or,
          (y) the Termination Date.  In the event the Borrowers have delivered
          to the Lenders a commitment letter on or before September 30, 1998
          reasonably satisfactory to the Lenders, in their discretion,
          contemplating satisfaction of all obligations due and owing to the
          Lenders under the Loan Documents on or before October 31, 1998, which
          commitment letter is issued by a financial institution and/or other
          party reasonably acceptable to the Lenders and is subject only to
          documentation and no further contingencies other than such
          contingencies acceptable to the Lenders as are ordinary and necessary
          in transactions of similar type, the interest rate increase scheduled
          for October 1, 1998 shall be deferred.  In the event that the
          Borrowers do not satisfy their entire outstanding obligations to the
          Lenders under the Loan Documents on or before October 31, 1998, the
          October 1, 1998 scheduled interest rate increase to the Prime Rate
          plus 4.5% shall be effective retroactive to October 1, 1998.  In the
          event that the Borrowers do satisfy their entire outstanding
          obligations to the Lenders under the Loan Documents on or before
          October 31, 1998, the October  1, 1998 scheduled interest rate
          increase shall be waived.

               Similarly if such commitment letter is received by the Lenders on
          or before November 30, 1998 contemplating satisfaction of all
          obligations due and

                                       6
<PAGE>
 
          owing to the Lenders under the Loan Documents on or before December
          31, 1998, the interest rate increase scheduled for December 1, 1998
          shall be deferred. In the event that the Borrowers do satisfy their
          entire outstanding obligations to the Lenders under the Loan Documents
          on or before December 31, 1998, the December 1, 1998 scheduled
          interest rate increase shall be waived. In the event the Borrowers do
          not satisfy their entire outstanding obligations to the Lenders under
          the Loan Documents on or before December 31, 1998, the December 1,
          1998 scheduled interest rate increase to the Prime Rate plus 5.5 %
          shall be effective retroactive to December 1, 1998.

               (ii) The entire principal balance, interest (accrued and
          hereafter accruing), costs and expenses, and other charges due in
          connection therewith shall be paid in full by the Borrowers on or
          before 5:00 P.M. eastern standard time on January 31, 1999, it being
          expressly acknowledged and agreed that TIME IS OF THE ESSENCE.

               (iii)  Any amounts paid or prepaid on account of the Fleet Term
          Note or the Mellon Term Note, whether pursuant to this Agreement or
          otherwise, shall not be available for reborrowing.

             REQUEST FOR ADVANCES UNDER FLEET LINE OF CREDIT NOTE
             -----------------------------------------------------
                        AND MELLON LINE OF CREDIT NOTE
                        ------------------------------

     3.   From and after the date of this Agreement, all requests for advances
under the Fleet Line of Credit Note and/or the Mellon Line of Credit Note shall
be submitted directly to Mr. Daniel D. Butler, Vice President of Fleet, on
behalf of the Lenders, for approval and shall be accompanied by a Borrowing Base
Certificate in the form of Exhibit "B" and a Covenant Compliance Certificate in
the form of Exhibit "C", each as annexed hereto and specifically incorporated by
reference herein.   The Borrowers acknowledge and agree that (i) the Lenders
have no obligation to make any advances under the Loan Documents, (ii) any
determination to make any advance shall be solely in the discretion of the
Lenders, (iii) the determination by the Lender to make any advance shall not
result in any obligation to make any further advances, and (iv) any advance made
by the Lenders in the discretion of the Lenders shall be secured by and governed
by the terms of the Loan Documents.

          FORBEARANCE FROM ACTION BASED ON SPECIFIC COVENANT DEFAULTS
          -----------------------------------------------------------

     4.   During the term of this Agreement, the Lenders hereby agree to forbear
from exercising their rights and remedies under the Loan Documents arising from
the following specific covenant defaults which have occurred under the terms and
conditions of the Extension Agreement prior to the execution of this Agreement:

                                       7
<PAGE>
 
(a)  Section 2(b)(ii) - $500,000.00 and $200,000.00 principal payments due on
     July 15, 1998 and August 15, 1998 not paid;

(b)  Section 12(a) - Minimum Eligible Accounts and Minimum Eligible Inventory
     levels not met;

(c)  Sections 12(b)- Minimum Fixed Charge Coverage Ratio of 1.00 to 1.00 not
     met;
 
(d)  Section 12(c) - Minimum Net Worth not met;

(e)  Section 13(d) - Submission of final, original, audited financial statements
for fiscal year ended December 31, 1997, together with certified public
accountant's unqualified opinion and management letter not delivered by May 15,
1998 and without material adverse change from the 1997 draft financial statement
previously delivered to the Lenders;

(f)  Section 13(f) - Business Plan/Refinancing not met; and

(g)  Section 15 - Additional Documents (failure to obtain foreign credit
insurance on behalf of Lenders or failure to coordinate arrangement to factor
receivables by May 31, 1998.

     Nothing contained in this Paragraph 5 is intended to be, nor shall it be
construed as, a waiver of any default or Event of Default nor shall anything
contained herein be deemed to constitute an agreement on the part of the Lenders
to forbear from exercising their rights and remedies under the Loan Documents
based upon the occurrence of any default or Event of Default occurring or
continuing after the execution of this Agreement, other than the specific
defaults referenced above through the date of this Agreement.

                              COVENANT AMENDMENTS
                              -------------------

     5.   (a)  The Loan Agreement is hereby amended as follows:

               (i)  The Loan Agreement is hereby amended to add to the
          definition of "Management Group" Mr. Paul Woitach, President and Chief
          Operating Officer, and Mr. John F. Wall, Chief Financial Officer of
          IGI, Inc.
          
               (ii) Section 5.18 of the Loan Agreement is hereby amended to add
          as "senior executive officers" of IGI, Inc. Mr. Paul Woitach and Mr.
          John F. Wall.

          (b)  The Extension Agreement is hereby amended as follows:

               (i)  Section 8 of the Extension Agreement is hereby deleted in
     its entirety;

                                       8
<PAGE>
 
               (ii) During the term of this Agreement, the Borrowers shall not
          be required to make payments required pursuant to Sections 2(b)(ii)
          and 2(b)(iii) of the Extension Agreement.
 

                                    WARRANTS
                                    --------
                                        
     6.   (a)  In the event the Obligations are paid in full in their entirety
on or before October 31, 1998, the Unconditional Warrants (as defined in Section
9 of the Extension Agreement) shall be  returned to the Borrowers.

          (b)  In the event the Obligations are paid in full in their entirety
on or before December 24, 1998, the Conditional Warrants (as defined in Section
9 of the Extension Agreement) shall be returned to the Borrowers.

                                FORBEARANCE FEE
                                ---------------

     7.   In consideration of the Lenders' agreement to enter into this
Agreement, the Borrowers shall pay to Fleet, as agent on behalf of the Lenders,
an incremental forbearance fee (the "Forbearance Fee") in the sum of $140,000.00
by bank cashiers' check, certified check, federal funds wire transfer, or direct
debit from the General Account or the Collection Account as follows:

          (a) $20,000.00 on or before the execution of this Agreement;

          (b) $30,000.00 on or before September 15, 1998; and

          (c) $40,000.00 on or before December 15, 1998;

          (d) $50,000.00 on or before January 15, 1999.

Each portion of the Forbearance Fee shall be fully earned as of its due date and
shall be distributed to the Lenders on a pro rata basis as a fee and not applied
to the Obligations.  In the event the Obligations have been paid in their
entirety prior to a specified Forbearance Fee payment date, all subsequent
fee(s) shall be waived.  The Forbearance Fee shall be in addition to, and not in
replacement of, the Extension Fee set forth in Section 10 of the Extension
Agreement.

     Notwithstanding the foregoing, payment of the portion of the Forbearance
Fee due on September 15, 1998 shall be deferred in the event the Borrowers have
delivered to the Lenders on or before September 15, 1998, a commitment letter
reasonably satisfactory to the Lenders, in their discretion, contemplating
payment in full of all outstanding obligations under the Loan Documents on or
before October 15, 1998, which commitment letter is issued by a financial

                                       9
<PAGE>
 
institution and/or other party reasonably acceptable to the Lenders and is
subject only to documentation with no further contingencies other than such
contingencies acceptable to the Lenders as are ordinary and necessary in
transactions of similar type.  If the Borrowers satisfy their outstanding
obligations to the Bank under the Loan Documents in full on or before October
15, 1998, the portion of the Forbearance Fee payable on September 15, 1998,
December 15, 1998, and January 15, 1999 shall be waived.  If the Borrowers fail
to satisfy their outstanding obligations to the Lenders under the Loan Documents
in full on or before October 15, 1998, the portion of the Forbearance Fee
otherwise payable on September 15, 1998 shall be due and payable in full on
October 15, 1998, and the portion of the Forbearance Fee due and payable on
December 15, 1998 and on January 15, 1999 shall remain due and payable in full
on December 15, 1998 and January 15, 1999, respectively.

     Similarly, payment of the portion of the Forbearance Fee due on December
15, 1998 shall be deferred in the event the Borrowers have delivered to the
Lenders on or before December 15, 1998, a commitment letter reasonably
satisfactory to the Lenders, in their discretion, contemplating payment in full
of all outstanding obligations under the Loan Documents on or before January 15,
1999, which commitment letter is issued by a financial institution and/or other
party reasonably acceptable to the Lenders and is subject only to documentation
with no further contingencies other than such contingencies acceptable to the
Lenders as are ordinary and necessary in transactions of similar type.  If the
Borrowers satisfy their outstanding obligations to the Lenders under the Loan
Documents in full on or before January 15, 1999, the portion of the Forbearance
Fee payable on December 15, 1998, and January 15, 1999 shall be waived.  If the
Borrowers fail to satisfy their outstanding obligations to the Lenders under the
Loan Documents in full on or before January 15, 1999, the portion of the
Forbearance Fee otherwise payable on December 15, 1998 shall be due and payable
in full on January 24, 1999, and the portion of the Forbearance Fee due and
payable on January 15, 1999 shall remain due and payable in full on January 15,
1999.

                                  AGENT'S FEE
                                  -----------

     7.   In consideration of Fleet's agreement to enter into this Agreement and
to continue to administer the Loan Arrangements as agent on behalf of the
Lenders, the Borrowers shall continue to pay to Fleet a monthly $5,000.00
agent's fee on the 1st day of each month during the term of this Agreement.  The
agent's fee for each month shall be fully earned as of the first (1st) day of
that month, and shall be retained by Fleet as a fee and shall not be applied in
reduction of the Obligations.

                              FINANCIAL COVENANTS
                              -------------------

     8.   In addition to all other covenants contained in the Loan Documents,
during the term of this Agreement, the Borrowers shall at all times comply with
the following covenants:

          (a) Minimum Eligible Accounts Receivable and Minimum Eligible
              ---------------------------------------------------------
Inventory:  The Borrowers shall maintain, at month end, combined "Minimum
- ---------                                                                
Eligible Accounts 

                                       10
<PAGE>
 
Receivable" and "Minimum Eligible Inventory" of $9,750,000.00. From and after
the date of this Agreement, any and all reference to "$11,000,000.00 in Section
12(a) of the Extension Agreement shall mean and refer to $9,750,000.00.

          (b) Minimum Fixed Charge Coverage Ratio: During the Term of this
              -----------------------------------                         
Agreement, the Borrowers shall not be required to comply with the terms of
Section 12(b) of the Extension Agreement.

          (c) Minimum Net Worth: The Borrowers shall maintain, at all times, a
              -----------------                                               
minimum "Net Worth" (as defined in accordance with generally accepted accounting
principles) in the following amounts as of the last day of each month:


               Dates                     Amount
               -----                     ------
 
               7/31/98                $6,870,000.00
               8/31/98                $6,581,000.00
               9/30/98                $6,103,000.00
               10/31/98               $5,871,000.00
               11/30/98               $5,637,000.00
               12/31/98               $5,363,000.00
               1/31/99                $5,128,000.00


                               INVESTMENT BANKER
                               -----------------

     9.   On or before August 31, 1998, the Borrower shall enter into a
retention agreement (the "Investment Banker Retention Agreement") with a
nationally-recognized investment banker acceptable to the Lenders in their
reasonable discretion for the purpose of formulating alternative business
strategies on behalf of the Borrowers and to coordinate to orderly satisfaction
of the Obligations.  On or before August 31, 1998, the Borrowers shall furnish
the Bank with a fully executed copy of the Investment Banker Retention
Agreement.  The investment banker referenced in the Investment Banker Retention
Agreement shall furnish the Lenders with monthly written progress reports and
periodic verbal reports commencing on September 8, 1998 and continuing on the
last Tuesday of each month during the term of this Agreement.

                                       11
<PAGE>
 
                             ADDITIONAL DOCUMENTS
                             --------------------

     4.   Upon the execution of this Agreement, and at any time thereafter, the
Borrowers shall also execute and deliver to the Lenders such additional
documentation as the Lenders in their discretion may reasonably require in order
to grant and/or perfect the Lenders' security interest in all assets of the
Borrowers, including, without limitation, all (i) motor vehicles, (ii)
intellectual property including, without limitation, all patents and/or
trademarks, and (iii) license agreements.  The Borrowers represent that all
locations where inventory is located and all patents or other intellectual
property in which the Borrowers have an interest are listed, respectively, on
Exhibit "D" and Exhibit "E" each as annexed hereto and specifically incorporated
by reference herein.  On or before August 31, 1998 the Borrowers shall (i)
obtain for the benefit of the Lenders foreign credit insurance in form and
substance reasonably satisfactory to the Lenders, wherein the Lenders shall be
named as Loss Payee, or (ii) enter into an arrangement to factor the Borrowers'
foreign accounts receivable, upon such terms and conditions as are reasonably
satisfactory to the Lenders.

                             COMPLIANCE CERTIFICATE
                             ----------------------

     5.   Upon or before the execution of this Agreement, and within forty five
(45) days of each month end during the term of this Agreement, the Borrowers
shall deliver to each of the Lenders, a covenant compliance certificate in the
form of Exhibit C setting forth the Borrowers' compliance with each of the
financial covenants referenced in the Loan Documents.

             FINANCIAL CONSULTANT; APPRAISALS; FIELD EXAMINATIONS
             ----------------------------------------------------

     6.   The Borrowers agree to cooperate with the Lenders and any financial
consultant retained on behalf of the Lenders to enable the Lenders to obtain
updated appraisals of all real estate and personal property owned by the
Borrowers and to  conduct independent field examinations of the Borrowers' books
and records which cooperation shall include, without limitation, providing the
Lenders and/or their appraisers, examiners and/or other representatives,
reasonable access to such property and shall make available such financial
and/or other information regarding the property, books and records, and other
assets of the Borrowers as may be reasonably requested by the Lenders in their
discretion.  The Borrowers shall reimburse the Lenders for all reasonable out of
pocket costs and expenses of independent third parties incurred by the Lenders
in connection with such appraisals and field examinations.

                                       12
<PAGE>
 
                               WAIVER OF CLAIMS
                               ----------------

     7.   The Borrowers hereby acknowledge and agree that they have no offsets,
defenses, claims, or counterclaims against the Lenders or the Lenders' officers,
directors, employees, attorneys, representatives, parent, predecessors,
affiliates, successors, and assigns with respect to the Obligations, or
otherwise, and that if the Borrowers now have, or ever did have, any offsets,
defenses, claims, or counterclaims against the Lenders or the Lenders' officers,
directors, employees, attorneys, representatives, parent, predecessors,
affiliates, successors, and assigns, whether known or unknown, at law or in
equity, from the beginning of the world through this date and through the time
of execution of this Agreement, all of them are hereby expressly WAIVED, and the
Borrowers each hereby RELEASE the Lenders and the Lenders' officers, directors,
employees, attorneys, representatives, parents, predecessors, affiliates,
successors, and assigns from any liability therefor, to the extent allowed by
applicable laws.

                              FORBEARANCE BY BANK
                              -------------------

     8.   In consideration of the Borrowers' performance in accordance with this
Agreement, the Lenders shall forbear from enforcing the Lenders' rights and
remedies as a result of the Borrowers' defaults, until the occurrence of an
Event of Default, as defined in Paragraph 16, below.  Notwithstanding the
foregoing, nothing contained in this Agreement shall constitute a waiver by the
Lenders of any Event of Default, whether now existing or hereafter arising.
This Agreement shall only constitute an agreement by the Lenders to forbear from
enforcing their rights and remedies upon the terms and conditions set forth
herein.

              RATIFICATION OF LOAN DOCUMENTS; FURTHER ASSURANCES
              --------------------------------------------------

     9.   (a)  THE BORROWERS HEREBY RATIFY, CONFIRM, AND REAFFIRM ALL AND
SINGULAR THE TERMS AND CONDITIONS OF THE LOAN DOCUMENTS, AND SPECIFICALLY
RATIFY, CONFIRM, AND REAFFIRM THEIR AUTHORITY TO EXECUTE SAME.  THE BORROWERS
FURTHER ACKNOWLEDGE AND AGREE THAT, EXCEPT AS SPECIFICALLY MODIFIED IN THIS
AGREEMENT, ALL TERMS AND CONDITIONS OF THOSE DOCUMENTS, INSTRUMENTS, AND
AGREEMENTS SHALL REMAIN IN FULL FORCE AND EFFECT.

          (b) THE BORROWERS SHALL, FROM AND AFTER THE EXECUTION OF THIS
AGREEMENT, EXECUTE AND DELIVER TO THE LENDERS WHATEVER ADDITIONAL DOCUMENTS,
INSTRUMENTS, AND AGREEMENTS THAT THE LENDERS MAY REASONABLY REQUIRE IN ORDER TO
VEST OR PERFECT THE LOAN DOCUMENTS AND THE COLLATERAL GRANTED THEREIN MORE
SECURELY IN THE LENDERS AND TO OTHERWISE GIVE EFFECT TO THE TERMS AND CONDITIONS
OF THIS AGREEMENT, INCLUDING, WITHOUT LIMITATION, A COMPLETE AMENDMENT AND
RESTATEMENT OF THE LOAN DOCUMENTS WITHIN THIRTY (30) DAYS OF ANY REQUEST BY THE
LENDERS FOR ANY SUCH ADDITIONAL DOCUMENTATION.

               

                                       13
<PAGE>
 
                               EVENTS OF DEFAULT
                               -----------------

     10.  The occurrence of any one or more of the following events shall
constitute an event of default (hereinafter, an "Event of Default") under this
Agreement:

          (a)  The failure of the Borrowers to pay or deposit any amounts due
hereunder or under any of the Loan Documents as and when due;

          (b)  The failure of the Borrowers to comply with any other term or
condition of this Agreement (which default, other than a default under Paragraph
12(a) of the Extension Agreement,  may be cured within three (3) days in
connection with any non-monetary default capable of being cured);

          (c)  The filing of a petition for relief by or against any one or more
of the Borrowers under the United States Bankruptcy Code;

          (d)  The occurrence of any event or circumstances, including, without
limitation, the existence or issuance of any directive or action by either the
United States Department of Agriculture or Office of the Inspector General of
the United States, or any other governing body, which materially adversely
impact the Borrowers' ability to manufacture, sell, or ship products, or
otherwise have a Material Adverse Effect (defined below) on the Borrowers'
financial condition or with the passage of time could have a material adverse
impact on the Borrowers' financial condition, assets, operating status, or
projected financial condition.  For the purposes of this Agreement, "Material
Adverse Effect" shall be defined as any material adverse effect as reasonably
determined by the Lenders, on the Borrowers' financial condition, assets,
operating status or projected financial condition or any fact or circumstance
that, singly or in the aggregate with any fact or circumstance, has a reasonable
likelihood of resulting in or leading to the inability of the Borrowers to
perform in any material respect their obligations under this Agreement or under
any Loan Document or the inability of Agent and/or Lenders to enforce in any
material respect the rights purported to be granted to them under this Agreement
or any Loan Document or which have a reasonable likelihood of having a material
adverse effect on the ability of the Borrowers to effectuate (including
hindering or unduly delaying) the transactions contemplated by this Agreement
and the Loan Documents on the terms contemplated hereby and thereby.

          (e)  The occurrence of any further event of default under, and as
defined in, any of the Loan Documents.

          (f)  Failure to pay all obligations in full on or before January 31,
1999 (the "Termination Date").

                                       14
<PAGE>
 
                              RIGHTS UPON DEFAULT
                              -------------------

     11.  Upon the occurrence of any Event of Default, the Lenders may
immediately commence enforcing their rights and remedies pursuant to the Loan
Documents and otherwise.  Further, upon the occurrence of an Event of Default,
interest shall accrue on the outstanding principal balance of the Obligations at
the default rate of interest set forth in the Loan Documents.  The Borrowers
expressly waive demand, notice and protest with respect to the Obligations.

                      REIMBURSEMENT OF COSTS AND EXPENSES
                      -----------------------------------

     12.  Upon the execution of this Agreement, the Borrowers shall pay to the
Lenders an amount equal to any and all reasonable attorneys' fees and expenses
incurred in connection with this matter through the date of this Agreement.  In
addition, upon Demand, or upon the occurrence of any Event of Default, as
defined in Paragraph 16, above, the Borrowers shall reimburse the Lenders for
any and all reasonable costs and expenses, including, without limitation, all
reasonable costs, expenses and fees of all accountants, appraisers, auditors and
other representatives of the Lenders, and costs of collection (including
attorneys' fees and allocated costs of Lenders' staff counsel) hereafter
incurred by the Lenders in connection with the clarification, modification,
protection, preservation, and enforcement by the Lenders of their rights and
remedies.

                                    NOTICES
                                    -------

     13.  Any notices required to be sent to the Lenders and the Borrowers shall
be forwarded via recognized overnight courier, addressed as follows:

          If to the Lenders:    Fleet National Bank                       
                                40 Westminster Street                     
                                Mail Code: RI OP TO5A                     
                                Providence, Rhode Island 02901            
                                Attn: Mr. Daniel D. Butler, Vice President
                                Telephone: (401) 459-4678                 
                                Fax: (401) 459-4963                       
                                                                          
          With a copy to:       Steven T. Greene, Esquire                 
                                Riemer & Braunstein                       
                                Three Center Plaza                        
                                Boston, Massachusetts 02108               
                                Telephone: (617) 523-9000                 
                                Fax: (617) 723-6831                       
                                                                          

                                       15
<PAGE>
 
                                Mellon Bank                               
                                Mellon Bank Center                        
                                1735 Market Street, P.O. Box 7899         
                                Philadelphia, PA   19101-7899             
                                Telephone: 215-553-2614                   
                                Fax: 215-553-4560                         
                                Attn:  Susan C. Saxer                     
                                Senior Vice President                     
                                                                          
                                                                          
With a copy to:                 Peter Leibundgut, Esquire                 
                                Blank, Rome and Comisky                   
                                Woodland Falls Corporate Park             
                                210 Lake Drive East                       
                                Cherry Hill, New Jersey   08002           
                                Telephone:  609-779-3644                  
                                Fax:  609-779-7647                        
                                                                          
                                                                          
          If to the Borrowers:  IGI, Inc.                                 
                                IGEN, Inc.                                
                                Immunogenetics, Inc.                      
                                Blood Cells, Inc.                         
                                Wheat Road and Lincoln Avenue             
                                Buena, New Jersey 08310                   
                                Attn: Kevin Bratton, Treasurer            
                                Telephone: (609) 697-1441                 
                                Fax: (609) 697-1001                       
                                                                          
          With a copy to:       Paul Brountas, Esquire                    
                                Hale and Dorr, LLP                        
                                60 State Street                           
                                Boston, Massachusetts 02109               
                                Telephone: (617) 526-6000                 
                                Fax: (617) 526-5000                        


                                    WAIVERS
                                    -------

     14.  Non-Interference.  From and after the occurrence of any Event of
          ----------------                                                
Default, the Borrowers agree not to interfere with the exercise by the Lenders
of any of their rights and remedies.  The Borrowers further agree that they
shall not seek to distrain or otherwise hinder, delay, or impair the Lenders'
lawful efforts to realize upon the Collateral, or otherwise to enforce 

                                       16
<PAGE>
 
their rights and remedies pursuant to the Loan Documents. This provision shall
be specifically enforceable by the Lenders.

     15.  Automatic Stay.  The Borrowers agree that upon the filing of any
          --------------                                                  
Petition for Relief by or against any one or more of the Borrowers under the
United States Bankruptcy Code, the Lenders shall be entitled to file a motion
for immediate and complete relief from the automatic stay, and the Lenders shall
be permitted to proceed to protect and enforce their rights and remedies under
applicable law.

     16.  Jury Trial.  The Borrowers hereby make the following waiver knowingly,
          ----------                                                            
voluntarily, and intentionally, and understand that the Lenders, in entering
into this Agreement or making any financial accommodations to the Borrowers,
whether now or in the future, are relying on such waiver: TO THE EXTENT ALLOWED
BY APPLICABLE LAW, THE BORROWERS HEREBY IRREVOCABLY WAIVE ANY PRESENT OR FUTURE
RIGHT TO A JURY IN ANY TRIAL OF ANY CASE OR CONTROVERSY IN WHICH THE LENDERS
BECOME A PARTY (WHETHER SUCH CASE OR CONTROVERSY IS INITIATED BY OR AGAINST THE
LENDERS OR IN WHICH THE LENDERS ARE JOINED AS A PARTY LITIGANT), WHICH CASE OR
CONTROVERSY ARISES OUT OF, OR IS IN RESPECT OF, ANY RELATIONSHIP BETWEEN THE
BORROWERS, OR ANY OTHER PERSON, AND THE LENDERS.

                               ENTIRE AGREEMENT
                               ----------------

     17.  This Agreement shall be binding upon the Borrowers and the Borrowers'
officers, directors, employees, representatives, successors, and assigns, and
shall inure to the benefit of the Lenders and the Lenders' successors and
assigns. This Agreement and the Loan Documents and all documents, instruments,
and agreements executed in connection herewith or therewith incorporate all of
the discussions and negotiations between the Borrowers and the Lenders, either
expressed or implied, concerning the matters included herein and in such other
documents, instruments and agreements, any statute, custom, or usage to the
contrary notwithstanding. No such discussions or negotiations shall limit,
modify, or otherwise affect the provisions hereof. No modification, amendment,
or waiver of any provision of this Agreement, or any provision of any other
document, instrument, or agreement between the Borrowers and the Lenders shall
be effective unless executed in writing by the party to be charged with such
modification, amendment, or waiver, and if such party be the Lenders, then by a
duly authorized officer thereof.

                           CONSTRUCTION OF AGREEMENT
                           -------------------------

                                       17
<PAGE>
 
     18.  (a)  This Agreement and all other documents, instruments, and
agreements incidental hereto and all rights and obligations hereunder and
thereunder, including matters of construction, validity, and performance, shall
be governed by and construed in accordance with the law of the State of New
Hampshire and are intended to take effect as sealed instruments.  The Borrowers
hereby consent to the jurisdiction of the Courts of the State of New Hampshire
for all purposes with respect to this Agreement and the Obligations.  The
captions of this Agreement are for convenience purposes only, and shall not be
used in construing the intent of the Lenders and the Borrowers under this
Agreement.  In the event of any inconsistency between the provisions of this
Agreement and any other document, instruments, or agreement entered into by and
between the Lenders and the Borrowers, the provisions of this Agreement shall
govern and control.

          (b)  The Borrowers further acknowledge and agree that the Lenders and
the Borrowers have prepared this Agreement and all documents, instruments, and
agreements incidental hereto and with the aid and assistance of their respective
counsel.  Accordingly, when interpreting this Agreement and all such other
documents, instruments, and agreements, each of them shall be deemed to have
been drafted by the Lenders and the Borrowers and shall not be construed against
either the Lenders or the Borrowers.

                        ILLEGALITY OR UNENFORCEABILITY
                        ------------------------------

     19.  Any determination that any provision or application of this Agreement
is invalid, illegal, or unenforceable in any respect, or in any instance, shall
not effect the validity, legality, or enforceability of any such provision in
any other instance, or the validity, legality, or enforceability of any other
provision of this Agreement.

                            COMPREHENSIVE AGREEMENT
                            -----------------------

     20.  The Borrowers warrant and represent to the Lenders that the Borrowers:
(i) have read and understand all of the terms and conditions of this Agreement,
(ii) intend to be bound by the terms and conditions of this Agreement, (iii) are
executing this Agreement freely and voluntarily, without duress, after
consultation with independent counsel of their own selection.

     IN WITNESS WHEREOF, this Agreement has been executed this 19 day of
August, 1998.

FLEET BANK-N.H.                    IGI, INC.

By: /s/ Daniel B. Butler                By:  /s/ Kevin J. Bratton
   --------------------------------         ------------------------------
Title: Vice President                   Title: Treasurer
      -----------------------------           ----------------------------

MELLON BANK                             IGEN, INC.

By:  /s/ Walter Letts                   By: /s/ George P. Warren, Jr.
   --------------------------------        -------------------------------


                                       18
<PAGE>
 
Title: Vice President                   Title: Secretary
      ---------------------------              --------------------------

                                        IMMUNOGENETICS, INC.

                                        By: /s/ Kevin J. Bratton
                                            ------------------------------
                                        Title: Treasurer
                                              ----------------------------

                                        BLOOD CELLS, INC.

                                        By: /s/ Kevin J. Bratton
                                           -------------------------------
                                        Title: Treasurer
                                              ----------------------------

                                        [ADDITIONAL SUBSIDIARIES]

                             STATE OF RHODE ISLAND

______________, ss                                             August ____, 1998

     Then personally appeared the above named ___________________, the
_______________ of Fleet Bank- N.H. and acknowledged the foregoing to be the
free act and deed of Fleet Bank- N.H., before me,

                                        _________________________
                                        Notary Public
                                        My Commission Expires:


                                        STATE OF ___________

______________, ss                                             August ____, 1998

     Then personally appeared the above named ________________ , the
____________ of Mellon Bank, N.A. and acknowledged the foregoing to be the free
act and deed of Mellon Bank, N.A., before me,

                                        _________________________
                                        Notary Public
                                        My Commission Expires:

                                        STATE OF ________________

_____________, ss                                              August ____, 1998

                                       19
<PAGE>
 
     Then personally appeared the above named __________________________, the
________________ of IGI, Inc. and acknowledged the foregoing to be the free act
and deed of IGI, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:


                           STATE OF ________________

_____________, ss                                              August ____, 1998

     
Then personally appeared the above named __________________________, the
________________ of IGEN, Inc. and acknowledged the foregoing to be the free act
and deed of IGEN, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:



                           STATE OF ________________

_____________, ss                                              August ____, 1998


Then personally appeared the above named __________________________, the
________________ of Immunogenetics, Inc. and acknowledged the foregoing to be
the free act and deed of Immunogenetics, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:



                           STATE OF ________________

_____________, ss                                              August ____, 1998
                                       20
<PAGE>
 
     Then personally appeared the above named __________________________, the
________________ of Immunogenetics, Inc. and acknowledged the foregoing to be
the free act and deed of Immunogenetics, Inc., before me,

                                    _________________________
                                    Notary Public
                                    My Commission Expires:
 

                                       21

<PAGE>
                                                                   Exhibit 10.33
 
          THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUED UPON ITS
                  EXERCISE ARE SUBJECT TO THE RESTRICTIONS ON
                TRANSFER SET FORTH IN SECTION 4 OF THIS WARRANT
          -----------------------------------------------------------
                                        

Warrant No. 1                                          Number of Shares: 150,000
                                                         (subject to adjustment)
Date of Issuance: May 12, 1998


                                   IGI, INC.
                                   ---------
                                        

                         Common Stock Purchase Warrant
                         -----------------------------

                           (Void after May 12, 2003)


     IGI, Inc., a Delaware corporation (the "Company"), for value received,
hereby certifies that Fleet Bank--N.H., a banking and trust company organized
under the laws of New Hampshire, or its registered assigns (the "Registered
Holder"), is entitled, subject to the terms set forth below, to purchase from
the Company, at any time or from time to time on or after September 1, 1998 and
on or before May 12, 2003 at not later than 5:00 p.m. 150,000 shares of Common
Stock, $.01 par value per share (the "Common Stock"), of the Company, at a
Exercise Price of $3.50 per share unless, by 5:00 p.m., Buena, New Jersey time,
on or before August 31, 1998, either (a) all Obligations (as defined in the
Extension Agreement dated April 29, 1998 (the "Extension Agreement") by and
among the Registered Holder, Fleet Bank, N.A., Mellon Bank, N.A., the Company
and certain of its subsidiaries) of the Borrowers (as defined in the Extension
Agreement) to the Lenders (as defined in the Extension Agreement) shall have
been paid in full, in which case this Warrant and the Registered Holder's rights
hereunder shall expire, or (b) the Borrowers have delivered a commitment letter
reasonably satisfactory to the Lenders, subject only to documentation and no
further contingencies of any kind, from a financial institution acceptable to
the Lenders, contemplating a full refinancing of the then existing Obligations
and a closing of such financing within thirty (30) days of such commitment
letter, in which case this Warrant's exercise start date shall be extended to
commence September 30, 1998; provided, however, if all Obligations to the
                             --------  -------
Lenders have been paid in full on or before such extended start date, this
Warrant and the Registered Holder's rights hereunder shall expire upon such
payment. The shares issuable upon exercise of this Warrant, and the exercise
price per share, each as adjusted from time to time pursuant to the provisions
of this Warrant, are hereinafter referred to as the "Warrant Shares" and the
"Exercise Price," respectively.

                                      -1-
<PAGE>
 
     1.   Certain Definitions. As used in this Warrant, the following terms
          -------------------
shall have the following respective meanings:
 
          "Commission" means the Securities and Exchange Commission, or any
           ----------         
other Federal agency at the time administering the Securities Act.

          "Registration Statement" means a registration statement filed by the
           ----------------------        
Company with the Commission for a public offering and sale of Common Stock
(other than a registration statement on Form S-8 or Form S-4, or their
successors, or any other form for a similar limited purpose, or any registration
statement covering only securities proposed to be issued in exchange for
securities or assets of another corporation).

          "Registrable Shares" means (i) the Warrant Shares, and (ii) any other
           ------------------        
shares of Common Stock issued in respect of such shares (because of stock
splits, stock dividends, reclassifications, recapitalizations, or similar
events); provided, however, that shares of Common Stock which are Registrable
         --------  -------
Shares shall cease to be Registrable Shares (i) upon any sale pursuant to a
Registration Statement or Rule 144 under the Securities Act or (ii) upon any
sale in any manner to a person or entity which, by virtue of Section 13 of this
Warrant, is not entitled to the rights provided by this Warrant.

     "Securities Act" means the Security Act of 1933, as amended, or any similar
      --------------         
Federal statute, and the rules and regulations of the Commission issued under
such Act, as they each may, from time to time, be in effect.
 
     2.   Exercise.
          -------- 

          (a) This Warrant may be exercised by the Registered Holder, in whole
or in part, by surrendering this Warrant, with the purchase form appended hereto
as Exhibit I duly executed by such Registered Holder or by such Registered
Holder's duly authorized attorney, at the principal office of the Company, or at
such other office or agency as the Company may designate, accompanied by payment
in full, in lawful money of the United States, of the Exercise Price payable in
respect of the number of Warrant Shares issued upon such exercise.

          (b) The Registered Holder may, at its option, elect to pay some or all
of the Exercise Price payable upon an exercise of this Warrant by cancelling a
portion of this Warrant exercisable for such number of Warrant Shares as is
determined by dividing (i) the total Exercise Price payable in respect of the
number of Warrant Shares being issued upon such exercise by (ii) the excess of
the Fair Market Value per share of Common Stock as of the effective date of
exercise, as determined pursuant to subsection 2(c) below (the "Exercise Date")
over the Exercise Price per share. If the

                                      -2-
<PAGE>
 
Registered Holder wishes to exercise this Warrant pursuant to this method of
payment with respect to the maximum number of Warrant Shares issuable pursuant
to this method, then the number of Warrant Shares so issuable shall be equal to
the total number of Warrant Shares, minus the product obtained by multiplying
(x) the total number of Warrant Shares by (y) a fraction, the numerator of which
shall be the Exercise Price per share and the denominator of which shall be the
Fair Market Value per share of Common Stock as of the Exercise Date. The Fair
Market Value per share of Common Stock shall be determined as follows:

               (i)  If the Common Stock is listed on a national securities
exchange, the Nasdaq Stock Market or another nationally recognized exchange or
trading system as of the Exercise Date, the Fair Market Value per share of
Common Stock shall be deemed to be the average of the last reported sale price
per share of Common Stock thereon for the ten consecutive trading days ending on
the day immediately prior to the Exercise Date.

               (ii) If the Common Stock is not listed on a national securities
exchange, the Nasdaq Stock Market or another nationally recognized exchange or
trading system as of the Exercise Date, the Fair Market Value per share of
Common Stock shall be deemed to be the amount most recently determined in good
faith by the Board of Directors to represent the fair market value per share of
the Common Stock (including without limitation a determination for purposes of
granting Common Stock options or issuing Common Stock under an employee benefit
plan of the Company); and, upon request of the Registered Holder, the Board of
Directors (or a representative thereof) shall promptly notify the Registered
Holder of the Fair Market Value per share of Common Stock. Notwithstanding the
foregoing, if the Board of Directors has not made such a determination within a
forty-five day period prior to the Exercise Date, then (A) the Fair Market Value
per share of Common Stock shall be the amount next determined in good faith by
the Board of Directors to represent the fair market value per share of the
Common Stock (including without limitation a determination for purposes of
granting Common Stock options or issuing Common Stock under an employee benefit
plan of the Company), (B) the Board of Directors shall make such a determination
within 15 days of a request by the Registered Holder that it do so, and (C) the
exercise of this Warrant pursuant to this subsection 2(b) shall be delayed until
such determination is made.

          (c) Each exercise of this Warrant shall be deemed to have been
effected immediately prior to the close of business on the day on which this
Warrant shall have been surrendered to the Company as provided in subsection
2(a) above. At such time, the person or persons in whose name or names any
certificates for Warrant Shares shall be issuable upon such exercise as provided
in subsection 2(d) below shall be deemed to have become the holder or holders of
record of the Warrant Shares represented by such certificates.

                                      -3-
<PAGE>
 
          (d)  As soon as practicable after the exercise of this Warrant in full
or in part, and in any event within 10 days thereafter, the Company, at its
expense, will cause to be issued in the name of, and delivered to, the
Registered Holder, or as such Registered Holder (upon payment by such Holder of
any applicable transfer taxes) may direct:

               (i)  a certificate or certificates for the number of full Warrant
Shares to which such Registered Holder shall be entitled upon such exercise
plus, in lieu of any fractional share to which such Registered Holder would
otherwise be entitled, cash in an amount determined pursuant to Section 4
hereof; and

               (ii) in case such exercise is in part only, a new warrant or
warrants (dated the date hereof) of like tenor, calling in the aggregate on the
face or faces thereof for the number of Warrant Shares equal (without giving
effect to any adjustment therein) to the number of such shares called for on the
face of this Warrant minus the sum of (a) the number of such shares purchased by
the Registered Holder upon such exercise plus (b) the number of Warrant Shares
(if any) covered by the portion of this Warrant cancelled in payment of the
Exercise Price payable upon such exercise pursuant to subsection 2(b) above.

     3.   Adjustments.
          ----------- 

          (a)  General. The Exercise Price shall be subject to adjustment from
               -------
time to time pursuant to the terms of this Section 3.

          (b)  Diluting Issuances.
               ------------------ 

               (i) Special Definitions. For purposes of this subsection 3(b),
                   ------------------- 
the following definitions shall apply:

                   (A) "Option" shall mean rights, options or warrants to
                         ------      
subscribe for, purchase or otherwise acquire Common Stock or Convertible
Securities, excluding options described in clause (II) of subsection 3(b)(i)(D)
below.

                   (B) "Original Issue Date" shall mean the date on which this
                         -------------------      
Warrant was first issued.

                   (C) "Convertible Securities" shall mean any evidences of
                         ----------------------       
indebtedness, shares or other securities directly or indirectly convertible into
or exchangeable for Common Stock.

                   (D) "Additional Shares of Common Stock" shall mean all
                         ---------------------------------     
shares of Common Stock issued (or, pursuant to subsection 3(b)(iii) below,
deemed to

                                      -4-
<PAGE>
 
be issued) by the Company after the Original Issue Date, other than shares of
Common Stock issued or issuable:

               (I)  by reason of a dividend, stock split, split-up or other
                    distribution on shares of Common Stock that are excluded
                    from the definition of Additional Shares of Common Stock by
                    this clause (I); or

               (II) to employees or directors of, or consultants to, the Company
                    pursuant to a plan adopted by the Board of Directors of the
                    Company.

         (ii)  No Adjustment of Exercise Price. No adjustments to the Exercise
               -------------------------------      
Price shall be made unless the consideration per share (determined pursuant to
subsection 3(b)(v)) for an Additional Share of Common Stock issued or deemed to
be issued by the Company is less than the Exercise Price in effect on the date
of, and immediately prior to, the issue of such Additional Shares.

         (iii) Issue of Securities Deemed Issue of Additional Shares of Common
               ---------------------------------------------------------------
Stock. If the Company at any time or from time to time after the Original Issue
- -----
Date shall issue any Options or Convertible Securities or shall fix a record
date for the determination of holders of any class of securities entitled to
receive any such Options or Convertible Securities, then the maximum number of
shares of Common Stock (as set forth in the instrument relating thereto without
regard to any provision contained therein for a subsequent adjustment of such
number) issuable upon the exercise of such Options or, in the case of
Convertible Securities and Options therefor, the conversion or exchange of such
Convertible Securities, shall be deemed to be Additional Shares of Common Stock
issued as of the time of such issue or, in case such a record date shall have
been fixed, as of the close of business on such record date, provided that
Additional Shares of Common Stock shall not be deemed to have been issued unless
the consideration per share (determined pursuant to subsection 3(b)(v) hereof)
of such Additional Shares of Common Stock would be less than the Exercise Price
in effect on the date of and immediately prior to such issue, or such record
date, as the case may be, and provided further that in any such case in which
Additional Shares of Common Stock are deemed to be issued:

               (A) No further adjustment in the Exercise Price shall be made
upon the subsequent issue of Convertible Securities or shares of Common Stock
upon the exercise of such Options or conversion or exchange of such Convertible
Securities;

               (B) If such Options or Convertible Securities by their terms
provide, with the passage of time or otherwise, for any increase in the
consideration payable to the Company, upon the exercise, conversion or exchange

                                      -5-
<PAGE>
 
thereof, the Exercise Price computed upon the original issue thereof (or upon
the occurrence of a record date with respect thereto), and any subsequent
adjustments based thereon, shall, upon any such increase becoming effective, be
recomputed to reflect such increase insofar as it affects such Options or the
rights of conversion or exchange under such Convertible Securities;

               (C) Upon the expiration or termination of any unexercised Option,
the Exercise Price shall not be readjusted, but the Additional Shares of Common
Stock deemed issued as the result of the original issue of such Option shall not
be deemed issued for the purposes of any subsequent adjustment of the Exercise
Price;

               (D) In the event of any change in the number of shares of Common
Stock issuable upon the exercise, conversion or exchange of any Option or
Convertible Security, including, but not limited to, a change resulting from the
anti-dilution provisions thereof, the Exercise Price then in effect shall
forthwith be readjusted to such Exercise Price as would have obtained had the
adjustment which was made upon the issuance of such Option or Convertible
Security not exercised or converted prior to such change been made upon the
basis of such change; and

               (E) No readjustment pursuant to Clause (B) or (D) above shall
have the effect of increasing the Exercise Price to an amount which exceeds the
lower of (i) the Exercise Price on the original adjustment date, or (ii) the
Exercise Price that would have resulted from any issuances of Additional Shares
of Common Stock between the original adjustment date and such readjustment date.

          (iv) Adjustment of Exercise Price Upon Issuance of Additional Shares
               ---------------------------------------------------------------
of Common Stock. In the event the Company shall at any time after the Original
- ---------------
Issue Date issue Additional Shares of Common Stock (including Additional Shares
of Common Stock deemed to be issued pursuant to subsection 3(b)(iii), but
excluding shares issued as a dividend or distribution or upon a stock split or
combination as provided in subsection 3(c)), without consideration or for a
consideration per share less than the Exercise Price in effect on the date of
and immediately prior to such issue, then and in such event, such Exercise Price
shall be reduced, concurrently with such issue, to a price (calculated to the
nearest cent) determined by multiplying such Exercise Price by a fraction, (A)
the numerator of which shall be (1) the number of shares of Common Stock
outstanding immediately prior to such issue plus (2) the number of shares of
Common Stock which the aggregate consideration received or to be received by the
Company for the total number of Additional Shares of Common Stock so issued
would purchase at such Exercise Price; and (B) the denominator of which shall be
the number of shares of Common Stock outstanding immediately prior to such issue
plus the number of such Additional Shares of Common Stock so issued; provided
                                                                     --------
that, (i) for the purpose of this subsection 3(b)(iv), all shares of Common
- ----
Stock issuable upon exercise or

                                      -6-
<PAGE>
 
conversion of Options or Convertible Securities outstanding immediately prior to
such issue shall be deemed to be outstanding (other than shares excluded from
the definition of "Additional Shares of Common Stock" by virtue of clause (II)
of subsection 3(b)(i)(D)), and (ii) the number of shares of Common Stock deemed
issuable upon conversion of such outstanding Options and Convertible Securities
shall not give effect to any adjustments to the conversion price or conversion
rate of such Options or Convertible Securities resulting from the issuance of
Additional Shares of Common Stock that is the subject of this calculation.

          Notwithstanding the foregoing, the applicable Exercise Price shall not
be so reduced at such time if the amount of such reduction would be an amount
less than $.05, but any such amount shall be carried forward and reduction with
respect thereto made at the time of and together with any subsequent reduction
which, together with such amount and any other amount or amounts so carried
forward, shall aggregate $.05 or more.

               (v)  Determination of Consideration. For purposes of this
                    ------------------------------          
subsection 3(b), the consideration received by the Company for the issue of any
Additional Shares of Common Stock shall be computed as follows:

                    (A)  Cash and Property:  Such consideration shall:
                         -----------------       

                         (I)   insofar as it consists of cash, be computed at
the aggregate of cash received by the Company, excluding amounts paid or payable
for accrued interest or accrued dividends;

                         (II)  insofar as it consists of property other than
cash, be computed at the fair market value thereof at the time of such issue, as
determined in good faith by the Board of Directors; and

                         (III) in the event Additional Shares of Common Stock
are issued together with other shares or securities or other assets of the
Company for consideration which covers both, be the proportion of such
consideration so received, computed as provided in clauses (I) and (II) above,
as determined in good faith by the Board of Directors.

                    (B)  Options and Convertible Securities. The consideration
                         ---------------------------------- 
per share received by the Company for Additional Shares of Common Stock deemed
to have been issued pursuant to subsection 3(b)(iii), relating to Options and
Convertible Securities, shall be determined by dividing

                         (x)   the total amount, if any, received or receivable
by the Company as consideration for the issue of such Options or Convertible
Securities, plus the minimum aggregate amount of additional

                                      -7-
<PAGE>
 
consideration (as set forth in the instruments relating thereto, without regard
to any provision contained therein for a subsequent adjustment of such
consideration) payable to the Company upon the exercise of such Options or the
conversion or exchange of such Convertible Securities, or in the case of Options
for Convertible Securities, the exercise of such Options for Convertible
Securities and the conversion or exchange of such Convertible Securities, by

                         (y) the maximum number of shares of Common Stock (as
set forth in the instruments relating thereto, without regard to any provision
contained therein for a subsequent adjustment of such number) issuable upon the
exercise of such Options or the conversion or exchange of such Convertible
Securities.

          (c)  Recapitalizations. If outstanding shares of Common Stock shall be
               -----------------     
subdivided into a greater number of shares or a dividend in Common Stock shall
be paid in respect of Common Stock, the Exercise Price in effect immediately
prior to such subdivision or at the record date of such dividend shall
simultaneously with the effectiveness of such subdivision or immediately after
the record date of such dividend be proportionately reduced. If outstanding
shares of Common Stock shall be combined into a smaller number of shares, the
Exercise Price in effect immediately prior to such combination shall,
simultaneously with the effectiveness of such combination, be proportionately
increased.

          (d)  Mergers, etc.  If there shall occur any capital reorganization or
               ------------                                                     
reclassification of the Common Stock (other than a change in par value or a
subdivision or combination as provided for in subsection 3(c) above), or any
consolidation or merger of the Company with or into another corporation, or a
transfer of all or substantially all of the assets of the Company, then, as part
of any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, lawful provision shall be made so that the Registered Holder of
this Warrant shall have the right thereafter to receive upon the exercise hereof
the kind and amount of shares of stock or other securities or property which
such Registered Holder would have been entitled to receive if, immediately prior
to any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, such Registered Holder had held the number of shares of Common
Stock which were then issuable upon the exercise of this Warrant. In any such
case, appropriate adjustment (as reasonably determined in good faith by the
Board of Directors of the Company) shall be made in the application of the
provisions set forth herein with respect to the rights and interests thereafter
of the Registered Holder of this Warrant, such that the provisions set forth in
this Section 3 (including provisions with respect to adjustment of the Exercise
Price) shall thereafter be applicable, as nearly as is reasonably practicable,
in relation to any shares of stock or other securities or property thereafter
deliverable upon the exercise of this Warrant.

                                      -8-
<PAGE>
 
          (e)  Adjustment in Number of Warrant Shares.  When any adjustment is 
               --------------------------------------    
required to be made in the Exercise Price, the number of Warrant Shares issuable
upon the exercise of this Warrant shall be changed to the number determined by
dividing (i) an amount equal to the number of shares issuable upon the exercise
of this Warrant immediately prior to such adjustment, multiplied by the Exercise
Price in effect immediately prior to such adjustment, by (ii) the Exercise Price
in effect immediately after such adjustment.

          (f)  Certificate of Adjustment.  When any adjustment is required to 
               -------------------------     
be made pursuant to this Section 3, the Company shall promptly mail to the
Registered Holder a certificate setting forth the Exercise Price after such
adjustment and setting forth a brief statement of the facts requiring such
adjustment. Such certificate shall also set forth the kind and amount of stock
or other securities or property into which this Warrant shall be exercisable
following such adjustment.

     4.   Fractional Shares.  The Company shall not be required upon the 
          -----------------                                         
exercise of this Warrant to issue any fractional shares, but shall make an
adjustment therefor in cash on the basis of the Fair Market Value per share of
Common Stock, as determined pursuant to subsection 2(b) above.

     5.   Requirements for Transfer.
          ------------------------- 

          (a)  This Warrant and the Warrant Shares shall not be sold or
transferred unless either (i) they first shall have been registered under the
Securities Act of 1933, as amended (the "Securities Act"), or (ii) the Company
first shall have been furnished with an opinion of legal counsel, reasonably
satisfactory to the Company, to the effect that such sale or transfer is exempt
from the registration requirements of the Act.

          (b)  Notwithstanding the foregoing, no registration or opinion of
counsel shall be required for (i) a transfer by a Registered Holder which is a
partnership to a partner of such partnership or a retired partner of such
partnership who retires after the date hereof, or to the estate of any such
partner or retired partner, if the transferee agrees in writing to be subject to
the terms of this Section 5, (ii) a transfer made in accordance with Rule 144
under the Act, or (iii) a transfer by a Registered Holder which is a corporation
to an affiliate, as defined under Rule 144 of the Securities Act, if the
transferee agrees in writing to be subject to the terms of this Section.

          (c)  Each certificate representing Warrant Shares shall bear a legend
substantially in the following form:

               "The securities represented by this
               certificate have not been registered under
               the Securities

                                      -9-
<PAGE>
 
               Act of 1933, as amended, and may not be
               offered, sold or otherwise transferred,
               pledged or hypothecated unless and until such
               securities are registered under such Act or
               an opinion of counsel satisfactory to the
               Company is obtained to the effect that such
               registration is not required."


The foregoing legend shall be removed from the certificates representing any
Warrant Shares, at the request of the holder thereof, at such time as they
become eligible for resale pursuant to Rule 144(k) under the Act.

     6.   No Impairment.  The Company will not, by amendment of its charter or
          -------------                                                       
through reorganization, consolidation, merger, dissolution, sale of assets or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms of this Warrant, but will at all times in good faith assist
in the carrying out of all such terms and in the taking of all such action as
may be necessary or appropriate in order to protect the rights of the holder of
this Warrant against impairment.

     7.   Liquidating Dividends.  If the Company pays a dividend or makes a 
          ---------------------                                    
distribution on the Common Stock payable otherwise than in cash out of earnings
or earned surplus (determined in accordance with generally accepted accounting
principles) except for a stock dividend payable in shares of Common Stock (a
"Liquidating Dividend"), then the Company will pay or distribute to the
Registered Holder of this Warrant, upon the exercise hereof, in addition to the
Warrant Shares issued upon such exercise, the Liquidating Dividend which would
have been paid to such Registered Holder if he had been the owner of record of
such Warrant Shares immediately prior to the date on which a record is taken for
such Liquidating Dividend or, if no record is taken, the date as of which the
record holders of Common Stock entitled to such dividends or distribution are to
be determined.

     8.   Optional Redemption.
          ------------------- 

          (a)  At any time, the Company may, at its option, redeem all, but not
less than all, of the Warrant Shares for which the Registered Holder has not
exercised its right to be issued (the "Available Warrant Shares"), by paying
$3.33 per Available Warrant Share (subject to appropriate adjustment for stock
splits, stock dividends, combinations or other similar recapitalizations
affecting such shares) in cash for each Available Warrant Share then redeemed
(hereinafter referred to as the "Redemption Price"); provided, however, that the
Registered Holder may immediately exercise its Warrant or Warrants until such
time on or 15 days prior to the Redemption Date (as defined below).

                                      -10-
<PAGE>
 
          (b)  At least 15 days prior to the date fixed for any redemption of
Available Warrant Shares (hereinafter referred to as the "Redemption Date"),
written notice shall be mailed, by first class or registered mail, postage
prepaid, to the Registered Holder, notifying such holder of the election of the
Company to redeem such Available Warrant Shares, specifying the Redemption Date
and calling upon the Registered Holder to surrender to the Company, in the
manner and at the place designated, its Warrant or Warrants, representing the
Available Warrant Shares to be redeemed (such notice is hereinafter referred to
as the "Redemption Notice"). On or prior to the Redemption Date (subject to the
Registered Holder's right to exercise such Warrants prior to the Redemption
Date), the Registered Holder shall surrender its Warrant or Warrants
representing Available Warrant Shares to the Company, in the manner and at the
place designated in the Redemption Notice, and thereupon the Redemption Price of
such shares shall be payable to the order of the Registered Holder and each
surrendered Warrant shall be cancelled. From and after the Redemption Date,
unless there shall have been a default in payment of the Redemption Price (or
the Registered Holder has exercised the Warrants prior to such Redemption Date),
all rights of the Registered Holder designated for redemption in the Redemption
Notice as the Registered Holder (except the right to receive the Redemption
Price without interest upon surrender of the Warrant) shall cease with respect
to the Warrant or Warrants representing the Available Warrant Shares, and such
Warrant or Warrants shall not thereafter be transferred on the books of the
Company or be deemed to be outstanding for any purpose whatsoever.

     9.   Notices of Record Date, etc.  In case:
          ---------------------------           

          (a)  the Company shall take a record of the holders of its Common
Stock (or other stock or securities at the time deliverable upon the exercise of
this Warrant) for the purpose of entitling or enabling them to receive any
dividend or other distribution, or to receive any right to subscribe for or
purchase any shares of stock of any class or any other securities, or to receive
any other right; or

          (b)  of any capital reorganization of the Company, any
reclassification of the capital stock of the Company, any consolidation or
merger of the Company with or into another corporation (other than a
consolidation or merger in which the Company is the surviving entity), or any
transfer of all or substantially all of the assets of the Company; or

          (c)  of the voluntary or involuntary dissolution, liquidation or
winding-up of the Company, then, and in each such case, the Company will mail or
cause to be mailed to the Registered Holder of this Warrant a notice specifying,
as the case may be, (i) the date on which a record is to be taken for the
purpose of such dividend, distribution or right, and stating the amount and
character of such dividend, distribution or right, or (ii) the effective date on
which such reorganization, reclassification, consolidation, merger, transfer,
dissolution, liquidation or winding-up

                                      -11-
<PAGE>
 
is to take place, and the time, if any is to be fixed, as of which the holders
of record of Common Stock (or such other stock or securities at the time
deliverable upon the exercise of this Warrant) shall be entitled to exchange
their shares of Common Stock (or such other stock or securities) for securities
or other property deliverable upon such reorganization, reclassification,
consolidation, merger, transfer, dissolution, liquidation or winding-up. Such
notice shall be mailed at least ten (10) days prior to the record date or
effective date for the event specified in such notice.

     10.  Reservation of Stock.  The Company will at all times reserve and keep
          --------------------                                
available, solely for issuance and delivery upon the exercise of this Warrant,
such number of Warrant Shares and other stock, securities and property, as from
time to time shall be issuable upon the exercise of this Warrant.

     11.  Exchange of Warrants.  Upon the surrender by the Registered Holder of
          --------------------                            
any Warrant or Warrants, properly endorsed, to the Company at the principal
office of the Company, the Company will, subject to the provisions of Section 5
hereof, issue and deliver to or upon the order of such Registered Holder, at the
Company's expense, a new Warrant or Warrants of like tenor, in the name of such
Registered Holder or as such Registered Holder (upon payment by such Registered
Holder of any applicable transfer taxes) may direct, calling in the aggregate on
the face or faces thereof for the number of shares of Common Stock called for on
the face or faces of the Warrant or Warrants so surrendered.

     12.  Replacement of Warrants.  Upon receipt of evidence reasonably
          -----------------------                           
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Warrant and (in the case of loss, theft or destruction) upon delivery of an
indemnity agreement (with surety if reasonably required) in an amount reasonably
satisfactory to the Company, or (in the case of mutilation) upon surrender and
cancellation of this Warrant, the Company will issue, in lieu thereof, a new
Warrant of like tenor.

     13.  Transfers, etc.
          -------------- 

          (a)  The Company will maintain a register containing the name and
address of the Registered Holder of this Warrant. Any Registered Holder may
change its or his address as shown on the warrant register by written notice to
the Company requesting such change.

          (b)  Subject to the provisions of Section 5 hereof, this Warrant and
all rights hereunder are transferable, in whole or in part, upon surrender of
this Warrant with a properly executed assignment (in the form of Exhibit II
                                                                 ----------
hereto) at the principal office of the Company.

          (c)  Until any transfer of this Warrant is made in the warrant
register, the Company may treat the Registered Holder of this Warrant as the
absolute owner

                                      -12-
<PAGE>
 
hereof for all purposes; provided, however, that if and when this Warrant is
                         --------  -------                       
is properly assigned in blank, the Company may (but shall not be obligated to)
treat the bearer hereof as the absolute owner hereof for all purposes,
notwithstanding any notice to the contrary.

     14.  Mailing of Notices, etc.  All notices and other communications from 
          -----------------------                        
the Company to the Registered Holder of this Warrant shall be mailed by first-
class certified or registered mail, postage prepaid, to the address furnished to
the Company in writing by the last Registered Holder of this Warrant who shall
have furnished an address to the Company in writing. All notices and other
communications from the Registered Holder of this Warrant or in connection
herewith to the Company shall be mailed by first-class certified or registered
mail, postage prepaid, to the Company at its principal office set forth below.
If the Company should at any time change the location of its principal office to
a place other than as set forth below, it shall give prompt written notice to
the Registered Holder of this Warrant and thereafter all references in this
Warrant to the location of its principal office at the particular time shall be
as so specified in such notice.

     15.  No Rights as Stockholder.  Until the exercise of this Warrant, the
          ------------------------                             
Registered Holder of this Warrant shall not have or exercise any rights by
virtue hereof as a stockholder of the Company.

     16.  Change or Waiver.  Any term of this Warrant may be changed or waived
          ----------------                                          
only by an instrument in writing signed by the party against which enforcement
of the change or waiver is sought.

     17.  Headings.  The headings in this Warrant are for purposes of reference
          --------                                                
only and shall not limit or otherwise affect the meaning of any provision of
this Warrant.

     18.  Governing Law.  This Warrant will be governed by and construed in 
          -------------                                       
accordance with the laws of Delaware.

     19.  Registration Rights.
          ------------------- 

          (a)  The Registered Holder shall have the registration rights with
respect to the Warrant Shares as specified in Section 9 of the Extension
Agreement dated April 29, 1998 by and among the Registered Holder, Fleet Bank,
N.A., Mellon Bank, N.A., the Company and certain of its subsidiaries.

          (b)  Furthermore, the Registered Holder shall be entitled to "piggy-
back" registration rights for so long as the Registered Holder shall own Warrant
Shares. Whenever the Company proposes to file a Registration Statement (other
than pursuant to subsection 19(a) at any time and from time to time, it will,
prior to such

                                      -13-
<PAGE>
 
filing, give written notice to the Registered Holder of its intention to do so
and, upon the written request of the Registered Holder given within 20 days
after the Company provides such notice (which request shall state the intended
method of disposition of such Registrable Shares), the Company shall use its
best efforts to cause all Registrable Shares which the Company has been
requested by such Registered Holder to register to be registered under the
Securities Act to the extent necessary to permit their sale or other disposition
in accordance with the intended methods of distribution specified in the request
of the Registered Holder; provided that the Company shall have the right to
postpone or withdraw any registration effected pursuant to subsection 19(b)
without obligation to the Registered Holder or any persons or entities to whom
the rights under this Warrant are transferred by the Registered Holder, its
successors or assigns pursuant to Section 13 hereof.

          (c)  In connection with any registration under subsection 19(b)
involving an underwriting, the Company shall not be required to include any
Registrable Shares in such registration unless the holders thereof accept the
terms of the underwriting as agreed upon between the Company and the
underwriters selected by it (provided that such terms must be consistent with
this Warrant). If in the opinion of the managing underwriter it is appropriate
because of marketing factors to limit the number of Registrable Shares to be
included in the offering, then the Company shall be required to include in the
registration only that number of Registrable Shares, if any, which the managing
underwriter believes should be included therein. If the number of Registrable
Shares to be included in the offering in accordance with the foregoing is less
than the total number of shares which the holders of Registrable Shares have
requested to be included, then the holders of Registrable Shares who have
requested registration and other holders of securities entitled to include them
in such registration shall participate in the registration pro rata based upon
their total ownership of shares of Common Stock (giving effect to the conversion
into Common Stock of all securities convertible thereinto). If any holder would
thus be entitled to include more securities than such holder requested to be
registered, the excess shall be allocated among other requesting holders pro
rata in the manner described in the preceding sentence.

     20.  Registration Procedures.  If and whenever the Company is required by
          -----------------------                                 
the provisions of this Warrant to use its best efforts to effect the
registration of any of the Registrable Shares under the Securities Act, the
Company shall:

          (a)  furnish to the Registered Holder such number of copies as the
Registered Holder shall reasonably request of the prospectus, including a
preliminary prospectus and any amendments or supplements thereto, in conformity
with the requirements of the Securities Act;

          (b)  use its best efforts to register or qualify the Registrable
Shares covered by the Registration Statement under the securities laws of such
states as the 

                                      -14-
<PAGE>
 
Registered Holder shall reasonably request; provided, however, that the Company
                                            --------  -------
shall not be required in connection with this subsection 20(b) to qualify as a
foreign corporation or execute a general consent to service of process in any
jurisdiction;

          (c)  promptly notify the Registered Holder, if the Company has
delivered preliminary or final prospectuses to the Registered Holder and after
having done so, the prospectus is amended to comply with the requirements of the
Securities Act and, if requested by the Company, the Registered Holder shall
immediately cease making offers or sales of Registrable Shares under the
Registration Statement and return all prospectuses to the Company. The Company
shall promptly provide the Registered Holder with revised prospectuses and,
following receipt of the revised prospectuses, the Registered Holder shall be
free to resume making offers and sales of the Registrable Shares; and

          (d)  pay the expenses incurred by it in complying with its obligations
under this Warrant in connection with registration rights, including all
registration and filing fees, exchange listing fees, expenses for the
preparation of the Registration statement, prospectus and any amendments and
supplements thereto, printing and photocopy expenses, fees and expenses of
counsel for the Company, and fees and expenses of accountants for the Company,
but excluding: (i) selling commissions or underwriting discounts incurred by the
Registered Holder in connection with sales of Registrable Shares under the
Registration Statement and (ii) the fees and expenses of any counsel retained by
the Registered Holder.

     21.  Requirements of Registered Holder.  The Company shall not be required
          ---------------------------------                        
to effect the registration of any of the Registrable Shares under the Securities
Act pursuant to this Warrant unless:

          (a)  the Registered Holder owning such shares furnishes to the Company
in writing such information regarding such Registered Holder and the proposed
sale of Registrable Shares by such Registered Holder as the Company may
reasonably request in writing in connection with the filing of a Registration
Statement or as shall be required in connection therewith by the Commission or
any state securities law authorities; and

          (b)  Such Registered Holder shall have provided to the Company its
written agreement that in the event of any registration of any of the
Registrable Shares under the Securities Act pursuant to this Warrant, each
Registered Holder will indemnify the Company and its officers and directors and
each person, if any, who controls any thereof (within the meaning of the
Securities Act) against any and all claims, losses, damages and liabilities (or
actions in respect thereof) arising out of or based on any untrue statement (or
alleged untrue statement) of any material fact contained in any prospectus or
other document incident to any registration, qualification or compliance (or in
any related Registration Statement, notification or

                                      -15-
<PAGE>
 
the like) or any omission (or alleged omission) to state therein any material
fact required to be stated therein or necessary to make the statement therein
not misleading, and such Registered Holder will reimburse the Company and each
other person indemnified pursuant to this Section 21 for any legal and any other
expenses reasonably incurred in connection with investigating or defending any
such claim, loss, damage, liability or action; provided, however, that this
                                               --------  -------
Section 21 shall apply only if (and only to the extent that) such statement or
omission was made in reliance upon written information furnished to the Company
in an instrument duly executed by such Registered Holder and stated to be
specifically for use in such prospectus or other document (or related
Registration Statement, notification or the like) or any amendment or supplement
thereto; and, provided further that each Registered Holder's liability hereunder
              -------- -------
with respect to any particular registration shall be limited to an amount equal
to the net proceeds received by such Registered Holder from the Registrable
Securities sold by such Registered Holder in such registration.

     22.  Indemnification by Company.  In the event of any registration of any
          --------------------------                      
of the Registrable Shares under the Securities Act pursuant to this Warrant, the
Company will indemnify each Registered Holder and each person who controls the
Registered Holder (within the meaning of the Securities Act) against any and all
claims, losses, damages and liabilities (or actions in respect thereof) arising
out of or based on any untrue statement (or alleged untrue statement) of any
material fact contained in any prospectus or other document incident to any
registration, qualification or compliance (or in any related Registration
Statement, notification or the like) or any omission (or alleged omission) to
state therein any material fact required to be stated therein or necessary to
make the statements therein not misleading, or any violation by the Company of
any rule or regulation promulgated under the Securities Act applicable to the
Company and relating to any action or inaction required of the Company in
connection with any such registration, qualification or compliance, and the
Company will reimburse each such Registered Holder and controlling person for
any legal and any other expenses reasonably incurred in connection with
investigating or defending any such claim, loss, damage, liability or action;
provided, however, that the Company will not be liable in any such case to the
- --------  ------- 
extent that any such claim, loss, damage or liability arises out of or is based
on any untrue statement or omission based upon written information furnished to
the Company in an instrument duly executed by such Registered Holder or
controlling person and specifically for use in such prospectus or other
document.

 
                                   IGI, INC.


                                   /s/ Edward B, Hager
                                   ---------------------------------
                                   By:  Edward B, Hager
[Corporate Seal]                   Title:  Chairman

                                      -16-
<PAGE>
 
                                                                       EXHIBIT I
                                                                       ---------
                                                                                

                                 PURCHASE FORM
                                 -------------
                                        

To:_________________                                          Dated:____________


     The undersigned, pursuant to the provisions set forth in the attached
Warrant (No. ___), hereby irrevocably elects to purchase _____ shares of the
Common Stock covered by such Warrant. The undersigned herewith makes payment of
$____________, representing the full Exercise Price for such shares at the price
per share provided for in such Warrant. Such payment takes the form of (check
applicable box or boxes):

[_]  $______ in lawful money of the United States; and/or

[_]  The cancellation of such portion of the attached Warrant as is exercisable
     for a total of _____ Warrant Shares (using a Fair Market Value of $_____
     per share for purposes of this calculation).

Signature:_____________________

                                                  Address:______________________

                                                          ______________________
<PAGE>
 
                                                                      EXHIBIT II
                                                                      ----------
                                                                                

                                ASSIGNMENT FORM
                                ---------------
                                        

     FOR VALUE RECEIVED, ________________________________________ hereby sells,
assigns and transfers all of the rights of the undersigned under the attached
Warrant (No. ____) with respect to the number of shares of Common Stock covered
thereby set forth below, unto:

Name of Assignee                Address                          No. of Shares
- ----------------                -------                          -------------



Dated:_____________________           Signature:________________________________

Dated:_____________________           Witness:__________________________________

<PAGE>
                                                                   Exhibit 10.34
 
          THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUED UPON ITS
                  EXERCISE ARE SUBJECT TO THE RESTRICTIONS ON
                TRANSFER SET FORTH IN SECTION 4 OF THIS WARRANT
   ------------------------------------------------------------------------
                                        
Warrant No. 2                                          Number of Shares: 150,000
                                                         (subject to adjustment)
Date of Issuance: May 12, 1998


                                   IGI, INC.
                                   ---------
                                        

                         Common Stock Purchase Warrant
                         -----------------------------

                           (Void after May 12, 2003)


     IGI, Inc., a Delaware corporation (the "Company"), for value received,
hereby certifies that Fleet Bank-N.H., a banking and trust company organized
under the laws of New Hampshire, or its registered assigns (the "Registered
Holder"), is entitled, subject to the terms set forth below, to purchase from
the Company, at any time or from time to time on or after the 60th day after the
date of issuance and on or before May 12, 2003 at not later than 5:00 p.m.
(Buena, New Jersey time), 150,000 shares of Common Stock, $.01 par value per
share (the "Common Stock"), of the Company, at a Exercise Price of $3.50 per
share. The shares issuable upon exercise of this Warrant, and the Exercise Price
per share, each as adjusted from time to time pursuant to the provisions of this
Warrant, are hereinafter referred to as the "Warrant Shares" and the "Exercise
Price," respectively.

     1.   Certain Definitions.  As used in this Warrant, the following terms
          -------------------
shall have the following respective meanings:
 
          "Commission" means the Securities and Exchange Commission, or any
           ----------
other Federal agency at the time administering the Securities Act.

          "Registration Statement" means a registration statement filed by the
           ----------------------
Company with the Commission for a public offering and sale of Common Stock
(other than a registration statement on Form S-8 or Form S-4, or their
successors, or any other form for a similar limited purpose, or any registration
statement covering only securities proposed to be issued in exchange for
securities or assets of another corporation).

                                      -1-
<PAGE>
 
          "Registrable Shares" means (i) the Warrant Shares, and (ii) any other
           ------------------
shares of Common Stock issued in respect of such shares (because of stock
splits, stock dividends, reclassifications, recapitalizations, or similar
events); provided, however, that shares of Common Stock which are Registrable
         --------  -------
Shares shall cease to be Registrable Shares (i) upon any sale pursuant to a
Registration Statement or Rule 144 under the Securities Act or (ii) upon any
sale in any manner to a person or entity which, by virtue of Section 13 of this
Warrant, is not entitled to the rights provided by this Warrant.

          "Securities Act" means the Security Act of 1933, as amended, or any
           --------------
similar Federal statute, and the rules and regulations of the Commission issued
under such Act, as they each may, from time to time, be in effect.
 
     2.   Exercise.
          -------- 

          (a)  This Warrant may be exercised by the Registered Holder, in whole
or in part, by surrendering this Warrant, with the purchase form appended hereto
as Exhibit I duly executed by such Registered Holder or by such Registered
   ---------
Holder's duly authorized attorney, at the principal office of the Company, or at
such other office or agency as the Company may designate, accompanied by payment
in full, in lawful money of the United States, of the Exercise Price payable in
respect of the number of Warrant Shares issued upon such exercise.

          (b)  The Registered Holder may, at its option, elect to pay some or
all of the Exercise Price payable upon an exercise of this Warrant by cancelling
a portion of this Warrant exercisable for such number of Warrant Shares as is
determined by dividing (i) the total Exercise Price payable in respect of the
number of Warrant Shares being issued upon such exercise by (ii) the excess of
the Fair Market Value per share of Common Stock as of the effective date of
exercise, as determined pursuant to subsection 2(c) below (the "Exercise Date")
over the Exercise Price per share. If the Registered Holder wishes to exercise
this Warrant pursuant to this method of payment with respect to the maximum
number of Warrant Shares issuable pursuant to this method, then the number of
Warrant Shares so issuable shall be equal to the total number of Warrant Shares,
minus the product obtained by multiplying (x) the total number of Warrant Shares
by (y) a fraction, the numerator of which shall be the Exercise Price per share
and the denominator of which shall be the Fair Market Value per share of Common
Stock as of the Exercise Date. The Fair Market Value per share of Common Stock
shall be determined as follows:

               (i)    If the Common Stock is listed on a national securities
exchange, the Nasdaq Stock Market or another nationally recognized exchange or
trading system as of the Exercise Date, the Fair Market Value per share of
Common Stock shall be deemed to be the average of the last reported sale price
per share of 

                                      -2-
<PAGE>
 
Common Stock thereon for the ten consecutive trading days ending on the day
immediately prior to the Exercise Date;

               (ii)   If the Common Stock is not listed on a national securities
exchange, the Nasdaq Stock Market or another nationally recognized exchange or
trading system as of the Exercise Date, the Fair Market Value per share of
Common Stock shall be deemed to be the amount most recently determined in good
faith by the Board of Directors to represent the fair market value per share of
the Common Stock (including without limitation a determination for purposes of
granting Common Stock options or issuing Common Stock under an employee benefit
plan of the Company); and, upon request of the Registered Holder, the Board of
Directors (or a representative thereof) shall promptly notify the Registered
Holder of the Fair Market Value per share of Common Stock. Notwithstanding the
foregoing, if the Board of Directors has not made such a determination within a
forty-five day period prior to the Exercise Date, then (A) the Fair Market Value
per share of Common Stock shall be the amount next determined in good faith by
the Board of Directors to represent the fair market value per share of the
Common Stock (including without limitation a determination for purposes of
granting Common Stock options or issuing Common Stock under an employee benefit
plan of the Company), (B) the Board of Directors shall make such a determination
within 15 days of a request by the Registered Holder that it do so, and (C) the
exercise of this Warrant pursuant to this subsection 2(b) shall be delayed until
such determination is made.

          (c)  Each exercise of this Warrant shall be deemed to have been
effected immediately prior to the close of business on the day on which this
Warrant shall have been surrendered to the Company as provided in subsection
2(a) above. At such time, the person or persons in whose name or names any
certificates for Warrant Shares shall be issuable upon such exercise as provided
in subsection 2(d) below shall be deemed to have become the holder or holders of
record of the Warrant Shares represented by such certificates.

          (d)  As soon as practicable after the exercise of this Warrant in full
or in part, and in any event within 10 days thereafter, the Company, at its
expense, will cause to be issued in the name of, and delivered to, the
Registered Holder, or as such Registered Holder (upon payment by such Holder of
any applicable transfer taxes) may direct:

               (i)    a certificate or certificates for the number of full
Warrant Shares to which such Registered Holder shall be entitled upon such
exercise plus, in lieu of any fractional share to which such Registered Holder
would otherwise be entitled, cash in an amount determined pursuant to Section 4
hereof; and

               (ii)   in case such exercise is in part only, a new warrant or
warrants (dated the date hereof) of like tenor, calling in the aggregate on the
face or faces thereof for the number of Warrant Shares equal (without giving
effect to any adjustment therein) to the number of such shares called for on the
face of this 

                                      -3-
<PAGE>
 
Warrant minus the sum of (a) the number of such shares purchased by the
Registered Holder upon such exercise plus (b) the number of Warrant Shares (if
any) covered by the portion of this Warrant cancelled in payment of the Exercise
Price payable upon such exercise pursuant to subsection 2(b) above.

          (e)  Notwithstanding the foregoing, the Warrant shall become
immediately exercisable by the Registered Holder upon (i) the occurrence of an
Event of Default (as defined in the Extension Agreement dated April 29, 1998 by
and among the Registered Holder, Fleet Bank-N.H., Mellon Bank, N.A., the Company
and certain of its subsidiaries) or (ii) the mailing date of written notice by
the Company of its intention to exercise its right under Section 8 to redeem
Available Warrant Shares (as defined under subsection 8(a)).

     3.   Adjustments.
          ----------- 

          (a)  General.  The Exercise Price shall be subject to adjustment from
               -------
     time to time pursuant to the terms of this Section 3.

          (b)  Diluting Issuances.
               ------------------ 

               (i)    Special Definitions.  For purposes of this subsection
                      -------------------
3(b), the following definitions shall apply:

                      (A)  "Option" shall mean rights, options or warrants to
                            ------ 
subscribe for, purchase or otherwise acquire Common Stock or Convertible
Securities, excluding options described in clause (II) of subsection 3(b)(i)(D)
below.

                      (B)  "Original Issue Date" shall mean the date on which
                            -------------------
this Warrant was first issued.

                      (C)  "Convertible Securities" shall mean any evidences of
                            ----------------------
indebtedness, shares or other securities directly or indirectly convertible into
or exchangeable for Common Stock.

                      (D)  "Additional Shares of Common Stock" shall mean all
                            ---------------------------------
shares of Common Stock issued (or, pursuant to subsection 3(b)(iii) below,
deemed to be issued) by the Company after the Original Issue Date, other than
shares of Common Stock issued or issuable:

                      (I)    by reason of a dividend, stock split, split-up or
                             other distribution on shares of Common Stock that
                             are excluded from the definition of Additional
                             Shares of Common Stock by this clause (I); or

                                      -4-
<PAGE>
 
                      (II)   to employees or directors of, or consultants to,
                             the Company pursuant to a plan adopted by the Board
                             of Directors of the Company.

               (ii)   No Adjustment of Exercise Price.  No adjustments to the
                      -------------------------------
Exercise Price shall be made unless the consideration per share (determined
pursuant to subsection 3(b)(v)) for an Additional Share of Common Stock issued
or deemed to be issued by the Company is less than the Exercise Price in effect
on the date of, and immediately prior to, the issue of such Additional Shares.

               (iii)  Issue of Securities Deemed Issue of Additional Shares of
                      --------------------------------------------------------
Common Stock.  If the Company at any time or from time to time after the
- ------------
Original Issue Date shall issue any Options or Convertible Securities or shall
fix a record date for the determination of holders of any class of securities
entitled to receive any such Options or Convertible Securities, then the maximum
number of shares of Common Stock (as set forth in the instrument relating
thereto without regard to any provision contained therein for a subsequent
adjustment of such number) issuable upon the exercise of such Options or, in the
case of Convertible Securities and Options therefor, the conversion or exchange
of such Convertible Securities, shall be deemed to be Additional Shares of
Common Stock issued as of the time of such issue or, in case such a record date
shall have been fixed, as of the close of business on such record date, provided
that Additional Shares of Common Stock shall not be deemed to have been issued
unless the consideration per share (determined pursuant to subsection 3(b)(v)
hereof) of such Additional Shares of Common Stock would be less than the
Exercise Price in effect on the date of and immediately prior to such issue, or
such record date, as the case may be, and provided further that in any such case
in which Additional Shares of Common Stock are deemed to be issued:

                      (A)  No further adjustment in the Exercise Price shall be
made upon the subsequent issue of Convertible Securities or shares of Common
Stock upon the exercise of such Options or conversion or exchange of such
Convertible Securities;

                      (B)  If such Options or Convertible Securities by their
terms provide, with the passage of time or otherwise, for any increase in the
consideration payable to the Company, upon the exercise, conversion or exchange
thereof, the Exercise Price computed upon the original issue thereof (or upon
the occurrence of a record date with respect thereto), and any subsequent
adjustments based thereon, shall, upon any such increase becoming effective, be
recomputed to reflect such increase insofar as it affects such Options or the
rights of conversion or exchange under such Convertible Securities;

                                      -5-
<PAGE>
 
                      (C)  Upon the expiration or termination of any unexercised
Option, the Exercise Price shall not be readjusted, but the Additional Shares of
Common Stock deemed issued as the result of the original issue of such Option
shall not be deemed issued for the purposes of any subsequent adjustment of the
Exercise Price;

                      (D)  In the event of any change in the number of shares of
Common Stock issuable upon the exercise, conversion or exchange of any Option or
Convertible Security, including, but not limited to, a change resulting from the
anti-dilution provisions thereof, the Exercise Price then in effect shall
forthwith be readjusted to such Exercise Price as would have obtained had the
adjustment which was made upon the issuance of such Option or Convertible
Security not exercised or converted prior to such change been made upon the
basis of such change; and

                      (E)  No readjustment pursuant to Clause (B) or (D) above
shall have the effect of increasing the Exercise Price to an amount which
exceeds the lower of (i) the Exercise Price on the original adjustment date, or
(ii) the Exercise Price that would have resulted from any issuances of
Additional Shares of Common Stock between the original adjustment date and such
readjustment date.

               (iv)   Adjustment of Exercise Price Upon Issuance of Additional
                      --------------------------------------------------------
Shares of Common Stock.  In the event the Company shall at any time after the
- ----------------------
Original Issue Date issue Additional Shares of Common Stock (including
Additional Shares of Common Stock deemed to be issued pursuant to subsection
3(b)(iii), but excluding shares issued as a dividend or distribution or upon a
stock split or combination as provided in subsection 3(c)), without
consideration or for a consideration per share less than the Exercise Price in
effect on the date of and immediately prior to such issue, then and in such
event, such Exercise Price shall be reduced, concurrently with such issue, to a
price (calculated to the nearest cent) determined by multiplying such Exercise
Price by a fraction, (A) the numerator of which shall be (1) the number of
shares of Common Stock outstanding immediately prior to such issue plus (2) the
number of shares of Common Stock which the aggregate consideration received or
to be received by the Company for the total number of Additional Shares of
Common Stock so issued would purchase at such Exercise Price; and (B) the
denominator of which shall be the number of shares of Common Stock outstanding
immediately prior to such issue plus the number of such Additional Shares of
Common Stock so issued; provided that, (i) for the purpose of this subsection
                        -------- ----
3(b)(iv), all shares of Common Stock issuable upon exercise or conversion of
Options or Convertible Securities outstanding immediately prior to such issue
shall be deemed to be outstanding (other than shares excluded from the
definition of "Additional Shares of Common Stock" by virtue of clause (II) of
subsection 3(b)(i)(D)), and (ii) the number of shares of Common Stock deemed
issuable upon conversion of such outstanding Options and Convertible Securities
shall not give effect to any adjustments to the conversion price or conversion
rate of 

                                      -6-
<PAGE>
 
such Options or Convertible Securities resulting from the issuance of Additional
Shares of Common Stock that is the subject of this calculation.

          Notwithstanding the foregoing, the applicable Exercise Price shall not
be so reduced at such time if the amount of such reduction would be an amount
less than $.05, but any such amount shall be carried forward and reduction with
respect thereto made at the time of and together with any subsequent reduction
which, together with such amount and any other amount or amounts so carried
forward, shall aggregate $.05 or more.

               (v)    Determination of Consideration.  For purposes of this
                      ------------------------------
subsection 3(b), the consideration received by the Company for the issue of any
Additional Shares of Common Stock shall be computed as follows:

                      (A)  Cash and Property:  Such consideration shall:
                           -----------------

                           (I)    insofar as it consists of cash, be computed at
the aggregate of cash received by the Company, excluding amounts paid or payable
for accrued interest or accrued dividends;

                           (II)   insofar as it consists of property other than
cash, be computed at the fair market value thereof at the time of such issue, as
determined in good faith by the Board of Directors; and

                           (III)  in the event Additional Shares of Common Stock
are issued together with other shares or securities or other assets of the
Company for consideration which covers both, be the proportion of such
consideration so received, computed as provided in clauses (I) and (II) above,
as determined in good faith by the Board of Directors.

                      (B)  Options and Convertible Securities.  The
                           ----------------------------------
consideration per share received by the Company for Additional Shares of Common
Stock deemed to have been issued pursuant to subsection 3(b)(iii), relating to
Options and Convertible Securities, shall be determined by dividing

                           (x)   the total amount, if any, received or
receivable by the Company as consideration for the issue of such Options or
Convertible Securities, plus the minimum aggregate amount of additional
consideration (as set forth in the instruments relating thereto, without regard
to any provision contained therein for a subsequent adjustment of such
consideration) payable to the Company upon the exercise of such Options or the
conversion or exchange of such Convertible Securities, or in the case of Options
for Convertible Securities, the exercise of such Options for Convertible
Securities and the conversion or exchange of such Convertible Securities, by

                                      -7-
<PAGE>
 
                           (y)   the maximum number of shares of Common Stock
(as set forth in the instruments relating thereto, without regard to any
provision contained therein for a subsequent adjustment of such number) issuable
upon the exercise of such Options or the conversion or exchange of such
Convertible Securities.

          (c)  Recapitalizations.  If outstanding shares of Common Stock shall
               -----------------
be subdivided into a greater number of shares or a dividend in Common Stock
shall be paid in respect of Common Stock, the Exercise Price in effect
immediately prior to such subdivision or at the record date of such dividend
shall simultaneously with the effectiveness of such subdivision or immediately
after the record date of such dividend be proportionately reduced. If
outstanding shares of Common Stock shall be combined into a smaller number of
shares, the Exercise Price in effect immediately prior to such combination
shall, simultaneously with the effectiveness of such combination, be
proportionately increased.

          (d)  Mergers, etc.  If there shall occur any capital reorganization or
               ------------
reclassification of the Common Stock (other than a change in par value or a
subdivision or combination as provided for in subsection 3(c) above), or any
consolidation or merger of the Company with or into another corporation, or a
transfer of all or substantially all of the assets of the Company, then, as part
of any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, lawful provision shall be made so that the Registered Holder of
this Warrant shall have the right thereafter to receive upon the exercise hereof
the kind and amount of shares of stock or other securities or property which
such Registered Holder would have been entitled to receive if, immediately prior
to any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, such Registered Holder had held the number of shares of Common
Stock which were then issuable upon the exercise of this Warrant. In any such
case, appropriate adjustment (as reasonably determined in good faith by the
Board of Directors of the Company) shall be made in the application of the
provisions set forth herein with respect to the rights and interests thereafter
of the Registered Holder of this Warrant, such that the provisions set forth in
this Section 3 (including provisions with respect to adjustment of the Exercise
Price) shall thereafter be applicable, as nearly as is reasonably practicable,
in relation to any shares of stock or other securities or property thereafter
deliverable upon the exercise of this Warrant.

          (e)  Adjustment in Number of Warrant Shares.  When any adjustment is
               --------------------------------------
required to be made in the Exercise Price, the number of Warrant Shares
purchasable upon the exercise of this Warrant shall be changed to the number
determined by dividing (i) an amount equal to the number of shares issuable upon
the exercise of this Warrant immediately prior to such adjustment, multiplied by
the Exercise Price in effect immediately prior to such adjustment, by (ii) the
Exercise Price in effect immediately after such adjustment.

                                      -8-
<PAGE>
 
          (f) Certificate of Adjustment. When any adjustment is required to be
              -------------------------
made pursuant to this Section 3, the Company shall promptly mail to the
Registered Holder a certificate setting forth the Exercise Price after such
adjustment and setting forth a brief statement of the facts requiring such
adjustment. Such certificate shall also set forth the kind and amount of stock
or other securities or property into which this Warrant shall be exercisable
following such adjustment.

     4.   Fractional Shares. The Company shall not be required upon the exercise
          -----------------  
of this Warrant to issue any fractional shares, but shall make an adjustment
therefor in cash on the basis of the Fair Market Value per share of Common
Stock, as determined pursuant to subsection 2(b) above.

     5.   Requirements for Transfer.
          ------------------------- 

          (a)  This Warrant and the Warrant Shares shall not be sold or
transferred unless either (i) they first shall have been registered under the
Securities Act of 1933, as amended (the "Securities Act"), or (ii) the Company
first shall have been furnished with an opinion of legal counsel, reasonably
satisfactory to the Company, to the effect that such sale or transfer is exempt
from the registration requirements of the Act.

          (b)  Notwithstanding the foregoing, no registration or opinion of
counsel shall be required for (i) a transfer by a Registered Holder which is a
partnership to a partner of such partnership or a retired partner of such
partnership who retires after the date hereof, or to the estate of any such
partner or retired partner, if the transferee agrees in writing to be subject to
the terms of this Section 5, (ii) a transfer made in accordance with Rule 144
under the Act, or (iii) a transfer by a Registered Holder which is a corporation
to an affiliate, as defined under Rule 144 of the Securities Act, if the
transferee agrees in writing to be subject to the terms of this Section.

          (c)  Each certificate representing Warrant Shares shall bear a legend
substantially in the following form:

               "The securities represented by this certificate
               have not been registered under the Securities Act
               of 1933, as amended, and may not be offered, sold
               or otherwise transferred, pledged or hypothecated
               unless and until such securities are registered
               under such Act or an opinion of counsel
               satisfactory to the Company is obtained to the
               effect that such registration is not required."

                                      -9-
<PAGE>
 
The foregoing legend shall be removed from the certificates representing any
Warrant Shares, at the request of the holder thereof, at such time as they
become eligible for resale pursuant to Rule 144(k) under the Act.

     6.   No Impairment. The Company will not, by amendment of its charter or
          -------------
through reorganization, consolidation, merger, dissolution, sale of assets or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms of this Warrant, but will at all times in good faith assist
in the carrying out of all such terms and in the taking of all such action as
may be necessary or appropriate in order to protect the rights of the holder of
this Warrant against impairment.

     7.   Liquidating Dividends. If the Company pays a dividend or makes a
          ---------------------
distribution on the Common Stock payable otherwise than in cash out of earnings
or earned surplus (determined in accordance with generally accepted accounting
principles) except for a stock dividend payable in shares of Common Stock (a
"Liquidating Dividend"), then the Company will pay or distribute to the
Registered Holder of this Warrant, upon the exercise hereof, in addition to the
Warrant Shares issued upon such exercise, the Liquidating Dividend which would
have been paid to such Registered Holder if he had been the owner of record of
such Warrant Shares immediately prior to the date on which a record is taken for
such Liquidating Dividend or, if no record is taken, the date as of which the
record holders of Common Stock entitled to such dividends or distribution are to
be determined.

     8.   Optional Redemption.
          ------------------- 

          (a)  At any time, the Company may, at its option, redeem all, but not
less than all, of the Warrant Shares for which the Registered Holder has not
exercised its right to be issued (the "Available Warrant Shares"), by paying
$3.33 per Available Warrant Share (subject to appropriate adjustment for stock
splits, stock dividends, combinations or other similar recapitalizations
affecting such shares) in cash for each Available Warrant Share then redeemed
(hereinafter referred to as the "Redemption Price"); provided, however, that the
Registered Holder may immediately exercise its Warrant or Warrants until such
time on or 15 days prior to the Redemption Date (as defined below).

          (b)  At least 15 days prior to the date fixed for any redemption of
Available Warrant Shares (hereinafter referred to as the "Redemption Date"),
written notice shall be mailed, by first class or registered mail, postage
prepaid, to the Registered Holder, notifying such holder of the election of the
Company to redeem such Available Warrant Shares, specifying the Redemption Date
and calling upon the Registered Holder to surrender to the Company, in the
manner and at the place designated, its Warrant or Warrants, representing the
Available Warrant Shares to be redeemed (such notice is hereinafter referred to
as the "Redemption Notice"). On or prior to the Redemption Date (subject to the
Registered Holder's right to exercise

                                      -10-
<PAGE>
 
such Warrants prior to the Redemption Date), the Registered Holder shall
surrender its Warrant or Warrants representing Available Warrant Shares to the
Company, in the manner and at the place designated in the Redemption Notice, and
thereupon the Redemption Price of such shares shall be payable to the order of
the Registered Holder and each surrendered Warrant shall be cancelled. From and
after the Redemption Date, unless there shall have been a default in payment of
the Redemption Price (or the Registered Holder has exercised the Warrants prior
to such Redemption Date), all rights of the Registered Holder designated for
redemption in the Redemption Notice as the Registered Holder (except the right
to receive the Redemption Price without interest upon surrender of the Warrant)
shall cease with respect to the Warrant or Warrants representing the Available
Warrant Shares, and such Warrant or Warrants shall not thereafter be transferred
on the books of the Company or be deemed to be outstanding for any purpose
whatsoever.

     9.   Notices of Record Date, etc.  In case:
          ---------------------------           

          (a)  the Company shall take a record of the holders of its Common
Stock (or other stock or securities at the time deliverable upon the exercise of
this Warrant) for the purpose of entitling or enabling them to receive any
dividend or other distribution, or to receive any right to subscribe for or
purchase any shares of stock of any class or any other securities, or to receive
any other right; or

          (b)  of any capital reorganization of the Company, any
reclassification of the capital stock of the Company, any consolidation or
merger of the Company with or into another corporation (other than a
consolidation or merger in which the Company is the surviving entity), or any
transfer of all or substantially all of the assets of the Company; or

          (c)  of the voluntary or involuntary dissolution, liquidation or
winding-up of the Company, then, and in each such case, the Company will mail or
cause to be mailed to the Registered Holder of this Warrant a notice specifying,
as the case may be, (i) the date on which a record is to be taken for the
purpose of such dividend, distribution or right, and stating the amount and
character of such dividend, distribution or right, or (ii) the effective date on
which such reorganization, reclassification, consolidation, merger, transfer,
dissolution, liquidation or winding-up is to take place, and the time, if any is
to be fixed, as of which the holders of record of Common Stock (or such other
stock or securities at the time deliverable upon the exercise of this Warrant)
shall be entitled to exchange their shares of Common Stock (or such other stock
or securities) for securities or other property deliverable upon such
reorganization, reclassification, consolidation, merger, transfer, dissolution,
liquidation or winding-up. Such notice shall be mailed at least ten (10) days
prior to the record date or effective date for the event specified in such
notice.

                                      -11-
<PAGE>
 
     10.  Reservation of Stock. The Company will at all times reserve and keep
          --------------------          
available, solely for issuance and delivery upon the exercise of this Warrant,
such number of Warrant Shares and other stock, securities and property, as from
time to time shall be issuable upon the exercise of this Warrant.

     11.  Exchange of Warrants. Upon the surrender by the Registered Holder of
          --------------------
any Warrant or Warrants, properly endorsed, to the Company at the principal
office of the Company, the Company will, subject to the provisions of Section 5
hereof, issue and deliver to or upon the order of such Registered Holder, at the
Company's expense, a new Warrant or Warrants of like tenor, in the name of such
Registered Holder or as such Registered Holder (upon payment by such Registered
Holder of any applicable transfer taxes) may direct, calling in the aggregate on
the face or faces thereof for the number of shares of Common Stock called for on
the face or faces of the Warrant or Warrants so surrendered.

     12.  Replacement of Warrants. Upon receipt of evidence reasonably
          -----------------------
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Warrant and (in the case of loss, theft or destruction) upon delivery of an
indemnity agreement (with surety if reasonably required) in an amount reasonably
satisfactory to the Company, or (in the case of mutilation) upon surrender and
cancellation of this Warrant, the Company will issue, in lieu thereof, a new
Warrant of like tenor.

     13.  Transfers, etc.
          -------------- 

          (a)  The Company will maintain a register containing the name and
address of the Registered Holder of this Warrant. Any Registered Holder may
change its or his address as shown on the warrant register by written notice to
the Company requesting such change.

          (b)  Subject to the provisions of Section 5 hereof, this Warrant and
all rights hereunder are transferable, in whole or in part, upon surrender of
this Warrant with a properly executed assignment (in the form of Exhibit II
                                                                 ----------
hereto) at the principal office of the Company.

          (c)  Until any transfer of this Warrant is made in the warrant
register, the Company may treat the Registered Holder of this Warrant as the
absolute owner hereof for all purposes; provided, however, that if and when this
                                        --------  ------- 
Warrant is properly assigned in blank, the Company may (but shall not be
obligated to) treat the bearer hereof as the absolute owner hereof for all
purposes, notwithstanding any notice to the contrary.

                                      -12-
<PAGE>
 
     14.  Mailing of Notices, etc. All notices and other communications from the
          -----------------------
Company to the Registered Holder of this Warrant shall be mailed by first-class
certified or registered mail, postage prepaid, to the address furnished to the
Company in writing by the last Registered Holder of this Warrant who shall have
furnished an address to the Company in writing. All notices and other
communications from the Registered Holder of this Warrant or in connection
herewith to the Company shall be mailed by first-class certified or registered
mail, postage prepaid, to the Company at its principal office set forth below.
If the Company should at any time change the location of its principal office to
a place other than as set forth below, it shall give prompt written notice to
the Registered Holder of this Warrant and thereafter all references in this
Warrant to the location of its principal office at the particular time shall be
as so specified in such notice.

     15.  No Rights as Stockholder. Until the exercise of this Warrant, the
          ------------------------
Registered Holder of this Warrant shall not have or exercise any rights by
virtue hereof as a stockholder of the Company.

     16.  Change or Waiver. Any term of this Warrant may be changed or waived
          ---------------- 
only by an instrument in writing signed by the party against which enforcement
of the change or waiver is sought.

     17.  Headings.  The headings in this Warrant are for purposes of reference
          -------
only and shall not limit or otherwise affect the meaning of any provision of
this Warrant.

     18.  Governing Law. This Warrant will be governed by and construed in
          -------------
accordance with the laws of Delaware.

     19.  Registration Rights.
          ------------------- 

          (a)  The Registered Holder shall have the demand registration rights
with respect to the Warrant Shares as specified in Section 9 of the Extension
Agreement dated April 29, 1998 by and among the Registered Holder, Fleet Bank,
N.A., Mellon Bank, N.A., the Company and certain of its subsidiaries.

          (b)  Furthermore, the Registered Holder shall be entitled to "piggy-
back" registration rights for so long as the Registered Holder shall own Warrant
Shares. Whenever the Company proposes to file a Registration Statement (other
than pursuant to subsection 19(a) at any time and from time to time, it will,
prior to such filing, give written notice to the Registered Holder of its
intention to do so and, upon the written request of the Registered Holder given
within 20 days after the Company provides such notice (which request shall state
the intended method of disposition of such Registrable Shares), the Company
shall use its best efforts to cause all Registrable Shares which the Company has
been requested by such Registered

                                      -13-
<PAGE>
 
Holder to register to be registered under the Securities Act to the extent
necessary to permit their sale or other disposition in accordance with the
intended methods of distribution specified in the request of the Registered
Holder; provided that the Company shall have the right to postpone or withdraw
any registration effected pursuant to this subsection 19(b) without obligation
to the Registered Holder or any persons or entities to which the rights under
this Warrant are transferred by the Registered Holder, its successors or assigns
pursuant to Section 13 hereof.

          (a)  In connection with any registration under subsection 19(b)
involving an underwriting, the Company shall not be required to include any
Registrable Shares in such registration unless the holders thereof accept the
terms of the underwriting as agreed upon between the Company and the
underwriters selected by it (provided that such terms must be consistent with
this Warrant). If in the opinion of the managing underwriter it is appropriate
because of marketing factors to limit the number of Registrable Shares to be
included in the offering, then the Company shall be required to include in the
registration only that number of Registrable Shares, if any, which the managing
underwriter believes should be included therein. If the number of Registrable
Shares to be included in the offering in accordance with the foregoing is less
than the total number of shares which the holders of Registrable Shares have
requested to be included, then the holders of Registrable Shares who have
requested registration and other holders of securities entitled to include them
in such registration shall participate in the registration pro rata based upon
their total ownership of shares of Common Stock (giving effect to the conversion
into Common Stock of all securities convertible thereinto). If any holder would
thus be entitled to include more securities than such holder requested to be
registered, the excess shall be allocated among other requesting holders pro
rata in the manner described in the preceding sentence.

     20.  Registration Procedures.  If and whenever the Company is required by 
          -----------------------                                 
the provisions of this Warrant to use to effect the registration of any of the
Registrable Shares under the Securities Act, the Company shall:

          (a)  furnish to the Registered Holder such number of copies as the
Registered Holder shall reasonably request of the prospectus, including a
preliminary prospectus and any amendments or supplements thereto, in conformity
with the requirements of the Securities Act;

          (b)  use its best efforts to register or qualify the Registrable
Shares covered by the Registration Statement under the securities laws of such
states as the Registered Holder shall reasonably request; provided, however, 
                                                          --------  -------
that the Company shall not be required in connection with this subsection 20(b)
to qualify as a foreign corporation or execute a general consent to service of
process in any jurisdiction;

                                      -14-
<PAGE>
 
          (c)  promptly notify the Registered Holder, if the Company has
delivered preliminary or final prospectuses to the Registered Holder and after
having done so, the prospectus is amended to comply with the requirements of the
Securities Act and, if requested by the Company, the Registered Holder shall
immediately cease making offers or sales of Registrable Shares under the
Registration Statement and return all prospectuses to the Company. The Company
shall promptly provide the Registered Holder with revised prospectuses and,
following receipt of the revised prospectuses, the Registered Holder shall be
free to resume making offers and sales of the Registrable Shares; and

          (d)  pay the expenses incurred by it in complying with its obligations
under this Warrant in connection with registration rights, including all
registration and filing fees, exchange listing fees, expenses for the
preparation of the Registration statement, prospectus and any amendments and
supplements thereto, printing and photocopy expenses, fees and expenses of
counsel for the Company, and fees and expenses of accountants for the Company,
but excluding: (i) selling commissions or underwriting discounts incurred by the
Registered Holder in connection with sales of Registrable Shares under the
Registration Statement and (ii) the fees and expenses of any counsel retained by
the Registered Holder.

     21.  Requirements of Registered Holder.  The Company shall not be required
          ----------------------------------                       
to effect the registration of any of the Registrable Shares under the Securities
Act pursuant to this Warrant unless:

          (a)  the Registered Holder owning such shares furnishes to the Company
in writing such information regarding such Registered Holder and the proposed
sale of Registrable Shares by such Registered Holder as the Company may
reasonably request in writing in connection with the filing of a Registration
Statement or as shall be required in connection therewith by the Commission or
any state securities law authorities; and

          (b)  Such Registered Holder shall have provided to the Company its
written agreement that in the event of any registration of any of the
Registrable Shares under the Securities Act pursuant to this Warrant, each
Registered Holder will indemnify the Company and its officers and directors and
each person, if any, who controls any thereof (within the meaning of the
Securities Act) against any and all claims, losses, damages and liabilities (or
actions in respect thereof) arising out of or based on any untrue statement (or
alleged untrue statement) of any material fact contained in any prospectus or
other document incident to any registration, qualification or compliance (or in
any related Registration Statement, notification or the like) or any omission
(or alleged omission) to state therein any material fact required to be stated
therein or necessary to make the statement therein not misleading, and such
Registered Holder will reimburse the Company and each other person indemnified
pursuant to this Section 21 for any legal and any other expenses

                                      -15-
<PAGE>
 
reasonably incurred in connection with investigating or defending any such
claim, loss, damage, liability or action; provided, however, that this Section
                                          --------  -------
21 shall apply only if (and only to the extent that) such statement or omission
was made in reliance upon written information furnished to the Company in an
instrument duly executed by such Registered Holder and stated to be specifically
for use in such prospectus or other document (or related Registration Statement,
notification or the like) or any amendment or supplement thereto; and, provided
                                                                       --------
further that each Registered Holder's liability hereunder with respect to any
- -------     
particular registration shall be limited to an amount equal to the net proceeds
received by such Registered Holder from the Registrable Securities sold by such
Registered Holder in such registration.

     22.  Indemnification by Company.  In the event of any registration of any
          --------------------------                      
of the Registrable Shares under the Securities Act pursuant to this Warrant, the
Company will indemnify each Registered Holder and each person who controls the
Registered Holder (within the meaning of the Securities Act) against any and all
claims, losses, damages and liabilities (or actions in respect thereof) arising
out of or based on any untrue statement (or alleged untrue statement) of any
material fact contained in any prospectus or other document incident to any
registration, qualification or compliance (or in any related Registration
Statement, notification or the like) or any omission (or alleged omission) to
state therein any material fact required to be stated therein or necessary to
make the statements therein not misleading, or any violation by the Company of
any rule or regulation promulgated under the Securities Act applicable to the
Company and relating to any action or inaction required of the Company in
connection with any such registration, qualification or compliance, and the
Company will reimburse each such Registered Holder and controlling person for
any legal and any other expenses reasonably incurred in connection with
investigating or defending any such claim, loss, damage, liability or action;
provided, however, that the Company will not be liable in any such case to the
- --------  -------                                        
extent that any such claim, loss, damage or liability arises out of or is based
on any untrue statement or omission based upon written information furnished to
the Company in an instrument duly executed by such Registered Holder or
controlling person and specifically for use in such prospectus or other
document.
 
 
 
                                                  IGI, INC.

                                                  /s/ Edward B. Hager   
                                                  -----------------------------
                                                  By: EDWARD B. HAGER
                                                  Title: CHAIRMAN

                                      -16-
<PAGE>
 
                                                                       EXHIBIT I
                                                                       ---------
                                                                                

                                 PURCHASE FORM
                                 -------------
                                        

To:_________________                                          Dated:____________


     The undersigned, pursuant to the provisions set forth in the attached
Warrant (No. ___), hereby irrevocably elects to purchase _____ shares of the
Common Stock covered by such Warrant. The undersigned herewith makes payment of
$____________, representing the full Exercise Price for such shares at the price
per share provided for in such Warrant. Such payment takes the form of (check
applicable box or boxes):

[_]  $______ in lawful money of the United States; and/or

[_]  The cancellation of such portion of the attached Warrant as is
     exercisable for a total of _____ Warrant Shares (using a Fair Market Value
     of $_____ per share for purposes of this calculation).

Signature:_____________________

                                                  Address:______________________

                                                          ______________________
<PAGE>
 
                                                                      EXHIBIT II
                                                                      ----------
                                                                                

                                ASSIGNMENT FORM
                                ---------------
                                        

     FOR VALUE RECEIVED, ________________________________________ hereby sells,
assigns and transfers all of the rights of the undersigned under the attached
Warrant (No. ____) with respect to the number of shares of Common Stock covered
thereby set forth below, unto:

Name of Assignee                     Address                No. of Shares
- ----------------                     -------                -------------



Dated:_____________________          Signature:_______________________________

Dated:_____________________          Witness:_________________________________

<PAGE>
                                                                   Exhibit 10.35
 
          THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUED UPON ITS
                  EXERCISE ARE SUBJECT TO THE RESTRICTIONS ON
                TRANSFER SET FORTH IN SECTION 4 OF THIS WARRANT
          ------------------------------------------------------------
                                        

Warrant No. 3                                          Number of Shares: 120,000
                                                         (subject to adjustment)
Date of Issuance: May 12, 1998


                                   IGI, INC.
                                   ---------
                                        

                         Common Stock Purchase Warrant
                         -----------------------------

                           (Void after May 12, 2003)


      IGI, Inc., a Delaware corporation (the "Company"), for value received,
hereby certifies that Mellon Bank, N.A., a national banking association, or its
registered assigns (the "Registered Holder"), is entitled, subject to the terms
set forth below, to purchase from the Company, at any time or from time to time
on or after September 1, 1998 and on or before May 12, 2003 at not later than
5:00 p.m. 120,000 shares of Common Stock, $.01 par value per share (the "Common
Stock"), of the Company, at a Exercise Price of $3.50 per share unless, by 5:00
p.m., Buena, New Jersey time, on or before August 31, 1998, either (a) all
Obligations (as defined in the Extension Agreement dated April 29, 1998 (the
"Extension Agreement") by and among the Registered Holder, Fleet Bank, N.A.,
Mellon Bank, N.A., the Company and certain of its subsidiaries) of the Borrowers
(as defined in the Extension Agreement) to the Lenders (as defined in the
Extension Agreement) shall have been paid in full, in which case this Warrant
and the Registered Holder's rights hereunder shall expire, or (b) the Borrowers
have delivered a commitment letter reasonably satisfactory to the Lenders,
subject only to documentation and no further contingencies of any kind, from a
financial institution acceptable to the Lenders, contemplating a full
refinancing of the then existing Obligations and a closing of such financing
within thirty (30) days of such commitment letter, in which case this Warrant's
exercise start date shall be extended to commence September 30, 1998; provided,
                                                                      -------- 
however, if all Obligations to the Lenders have been paid in full on or before
- -------                                                                       
such extended start date, this Warrant and the Registered Holder's rights
hereunder shall expire upon such payment.  The shares issuable upon exercise of
this Warrant, and the exercise price per share, each as adjusted from time to
time pursuant to the provisions of this Warrant, are hereinafter referred to as
the "Warrant Shares" and the "Exercise Price," respectively.

                                      -1-
<PAGE>
 
     1.   Certain Definitions.  As used in this Warrant, the following terms 
          -------------------     
shall have the following respective meanings:
 
          "Commission" means the Securities and Exchange Commission, or any
           ----------
other Federal agency at the time administering the Securities Act.

          "Registration Statement" means a registration statement filed by the
           ----------------------
Company with the Commission for a public offering and sale of Common Stock
(other than a registration statement on Form S-8 or Form S-4, or their
successors, or any other form for a similar limited purpose, or any registration
statement covering only securities proposed to be issued in exchange for
securities or assets of another corporation).

          "Registrable Shares" means (i) the Warrant Shares, and (ii) any other
           ------------------
shares of Common Stock issued in respect of such shares (because of stock
splits, stock dividends, reclassifications, recapitalizations, or similar
events); provided, however, that shares of Common Stock which are Registrable
         --------  -------
Shares shall cease to be Registrable Shares (i) upon any sale pursuant to a
Registration Statement or Rule 144 under the Securities Act or (ii) upon any
sale in any manner to a person or entity which, by virtue of Section 13 of this
Warrant, is not entitled to the rights provided by this Warrant.

          "Securities Act" means the Security Act of 1933, as amended, or any
           --------------
similar Federal statute, and the rules and regulations of the Commission issued
under such Act, as they each may, from time to time, be in effect.
 
     2.   Exercise.
          -------- 

          (a)  This Warrant may be exercised by the Registered Holder, in whole
or in part, by surrendering this Warrant, with the purchase form appended hereto
as Exhibit I duly executed by such Registered Holder or by such Registered
   ---------                                                              
Holder's duly authorized attorney, at the principal office of the Company, or at
such other office or agency as the Company may designate, accompanied by payment
in full, in lawful money of the United States, of the Exercise Price payable in
respect of the number of Warrant Shares issued upon such exercise.

          (b)  The Registered Holder may, at its option, elect to pay some or
all of the Exercise Price payable upon an exercise of this Warrant by cancelling
a portion of this Warrant exercisable for such number of Warrant Shares as is
determined by dividing (i) the total Exercise Price payable in respect of the
number of Warrant Shares being issued upon such exercise by (ii) the excess of
the Fair Market Value per share of Common Stock as of the effective date of
exercise, as determined pursuant to subsection 2(c) below (the "Exercise Date")
over the Exercise Price per share. If the Registered Holder wishes to exercise
this Warrant pursuant to this method of 

                                      -2-
<PAGE>
 
payment with respect to the maximum number of Warrant Shares issuable pursuant
to this method, then the number of Warrant Shares so issuable shall be equal to
the total number of Warrant Shares, minus the product obtained by multiplying
(x) the total number of Warrant Shares by (y) a fraction, the numerator of which
shall be the Exercise Price per share and the denominator of which shall be the
Fair Market Value per share of Common Stock as of the Exercise Date. The Fair
Market Value per share of Common Stock shall be determined as follows:

               (i)   If the Common Stock is listed on a national securities
exchange, the Nasdaq Stock Market or another nationally recognized exchange or
trading system as of the Exercise Date, the Fair Market Value per share of
Common Stock shall be deemed to be the average of the last reported sale price
per share of Common Stock thereon for the ten consecutive trading days ending on
the day immediately prior to the Exercise Date.

               (ii)  If the Common Stock is not listed on a national securities
exchange, the Nasdaq Stock Market or another nationally recognized exchange or
trading system as of the Exercise Date, the Fair Market Value per share of
Common Stock shall be deemed to be the amount most recently determined in good
faith by the Board of Directors to represent the fair market value per share of
the Common Stock (including without limitation a determination for purposes of
granting Common Stock options or issuing Common Stock under an employee benefit
plan of the Company); and, upon request of the Registered Holder, the Board of
Directors (or a representative thereof) shall promptly notify the Registered
Holder of the Fair Market Value per share of Common Stock. Notwithstanding the
foregoing, if the Board of Directors has not made such a determination within a
forty-five day period prior to the Exercise Date, then (A) the Fair Market Value
per share of Common Stock shall be the amount next determined in good faith by
the Board of Directors to represent the fair market value per share of the
Common Stock (including without limitation a determination for purposes of
granting Common Stock options or issuing Common Stock under an employee benefit
plan of the Company), (B) the Board of Directors shall make such a determination
within 15 days of a request by the Registered Holder that it do so, and (C) the
exercise of this Warrant pursuant to this subsection 2(b) shall be delayed until
such determination is made.

          (c)  Each exercise of this Warrant shall be deemed to have been
effected immediately prior to the close of business on the day on which this
Warrant shall have been surrendered to the Company as provided in subsection
2(a) above. At such time, the person or persons in whose name or names any
certificates for Warrant Shares shall be issuable upon such exercise as provided
in subsection 2(d) below shall be deemed to have become the holder or holders of
record of the Warrant Shares represented by such certificates.

                                      -3-
<PAGE>
 
          (d)  As soon as practicable after the exercise of this Warrant in full
or in part, and in any event within 10 days thereafter, the Company, at its
expense, will cause to be issued in the name of, and delivered to, the
Registered Holder, or as such Registered Holder (upon payment by such Holder of
any applicable transfer taxes) may direct:

               (i)   a certificate or certificates for the number of full
Warrant Shares to which such Registered Holder shall be entitled upon such
exercise plus, in lieu of any fractional share to which such Registered Holder
would otherwise be entitled, cash in an amount determined pursuant to Section 4
hereof; and

               (ii)  in case such exercise is in part only, a new warrant or
warrants (dated the date hereof) of like tenor, calling in the aggregate on the
face or faces thereof for the number of Warrant Shares equal (without giving
effect to any adjustment therein) to the number of such shares called for on the
face of this Warrant minus the sum of (a) the number of such shares purchased by
the Registered Holder upon such exercise plus (b) the number of Warrant Shares
(if any) covered by the portion of this Warrant cancelled in payment of the
Exercise Price payable upon such exercise pursuant to subsection 2(b) above.

     3.   Adjustments.
          ----------- 

          (a)  General.  The Exercise Price shall be subject to adjustment from
               -------           
time to time pursuant to the terms of this Section 3.

          (b)  Diluting Issuances.
               ------------------ 

               (i)  Special Definitions.  For purposes of this subsection 3(b),
                    -------------------    
the following definitions shall apply:

                    (A)  "Option" shall mean rights, options or warrants to 
                          ------           
subscribe for, purchase or otherwise acquire Common Stock or Convertible
Securities, excluding options described in clause (II) of subsection 3(b)(i)(D)
below.

                    (B)  "Original Issue Date" shall mean the date on which 
                          -------------------   
this Warrant was first issued.

                    (C)  "Convertible Securities" shall mean any evidences of 
                          ----------------------  
indebtedness, shares or other securities directly or indirectly convertible into
or exchangeable for Common Stock.

                    (D)  "Additional Shares of Common Stock" shall mean all 
                          ---------------------------------   
shares of Common Stock issued (or, pursuant to subsection 3(b)(iii) below,
deemed to 

                                      -4-
<PAGE>
 
be issued) by the Company after the Original Issue Date, other than
shares of Common Stock issued or issuable:

                      (I)   by reason of a dividend, stock split, split-up or
                            other distribution on shares of Common Stock that
                            are excluded from the definition of Additional
                            Shares of Common Stock by this clause (I); or

                      (II)  to employees or directors of, or consultants to, the
                            Company pursuant to a plan adopted by the Board of
                            Directors of the Company.

               (ii)   No Adjustment of Exercise Price.  No adjustments to the 
                      ------------------------------- 
Exercise Price shall be made unless the consideration per share (determined
pursuant to subsection 3(b)(v)) for an Additional Share of Common Stock issued
or deemed to be issued by the Company is less than the Exercise Price in effect
on the date of, and immediately prior to, the issue of such Additional Shares.

               (iii)  Issue of Securities Deemed Issue of Additional Shares of
                      --------------------------------------------------------
Common Stock. If the Company at any time or from time to time after the Original
- ------------
Issue Date shall issue any Options or Convertible Securities or shall fix a
record date for the determination of holders of any class of securities entitled
to receive any such Options or Convertible Securities, then the maximum number
of shares of Common Stock (as set forth in the instrument relating thereto
without regard to any provision contained therein for a subsequent adjustment of
such number) issuable upon the exercise of such Options or, in the case of
Convertible Securities and Options therefor, the conversion or exchange of such
Convertible Securities, shall be deemed to be Additional Shares of Common Stock
issued as of the time of such issue or, in case such a record date shall have
been fixed, as of the close of business on such record date, provided that
Additional Shares of Common Stock shall not be deemed to have been issued unless
the consideration per share (determined pursuant to subsection 3(b)(v) hereof)
of such Additional Shares of Common Stock would be less than the Exercise Price
in effect on the date of and immediately prior to such issue, or such record
date, as the case may be, and provided further that in any such case in which
Additional Shares of Common Stock are deemed to be issued:

                      (A)   No further adjustment in the Exercise Price shall be
made upon the subsequent issue of Convertible Securities or shares of Common
Stock upon the exercise of such Options or conversion or exchange of such
Convertible Securities;

                      (B)   If such Options or Convertible Securities by their
terms provide, with the passage of time or otherwise, for any increase in the
consideration payable to the Company, upon the exercise, conversion or exchange

                                      -5-
<PAGE>
 
thereof, the Exercise Price computed upon the original issue thereof (or upon
the occurrence of a record date with respect thereto), and any subsequent
adjustments based thereon, shall, upon any such increase becoming effective, be
recomputed to reflect such increase insofar as it affects such Options or the
rights of conversion or exchange under such Convertible Securities;

                      (C)   Upon the expiration or termination of any
unexercised Option, the Exercise Price shall not be readjusted, but the
Additional Shares of Common Stock deemed issued as the result of the original
issue of such Option shall not be deemed issued for the purposes of any
subsequent adjustment of the Exercise Price;

                      (D)   In the event of any change in the number of shares
of Common Stock issuable upon the exercise, conversion or exchange of any Option
or Convertible Security, including, but not limited to, a change resulting from
the anti-dilution provisions thereof, the Exercise Price then in effect shall
forthwith be readjusted to such Exercise Price as would have obtained had the
adjustment which was made upon the issuance of such Option or Convertible
Security not exercised or converted prior to such change been made upon the
basis of such change; and

                      (E)   No readjustment pursuant to Clause (B) or (D) above
shall have the effect of increasing the Exercise Price to an amount which
exceeds the lower of (i) the Exercise Price on the original adjustment date, or
(ii) the Exercise Price that would have resulted from any issuances of
Additional Shares of Common Stock between the original adjustment date and such
readjustment date.

               (iv)   Adjustment of Exercise Price Upon Issuance of Additional
                      --------------------------------------------------------
Shares of Common Stock. In the event the Company shall at any time after the
- ----------------------
Original Issue Date issue Additional Shares of Common Stock (including
Additional Shares of Common Stock deemed to be issued pursuant to subsection
3(b)(iii), but excluding shares issued as a dividend or distribution or upon a
stock split or combination as provided in subsection 3(c)), without
consideration or for a consideration per share less than the Exercise Price in
effect on the date of and immediately prior to such issue, then and in such
event, such Exercise Price shall be reduced, concurrently with such issue, to a
price (calculated to the nearest cent) determined by multiplying such Exercise
Price by a fraction, (A) the numerator of which shall be (1) the number of
shares of Common Stock outstanding immediately prior to such issue plus (2) the
number of shares of Common Stock which the aggregate consideration received or
to be received by the Company for the total number of Additional Shares of
Common Stock so issued would purchase at such Exercise Price; and (B) the
denominator of which shall be the number of shares of Common Stock outstanding
immediately prior to such issue plus the number of such Additional Shares of
Common Stock so issued; provided that, (i) for the purpose of this
                        -------- ----
subsection 3(b)(iv), all shares of Common Stock issuable upon exercise or

                                      -6-
<PAGE>
 
conversion of Options or Convertible Securities outstanding immediately prior to
such issue shall be deemed to be outstanding (other than shares excluded from
the definition of "Additional Shares of Common Stock" by virtue of clause (II)
of subsection 3(b)(i)(D)), and (ii) the number of shares of Common Stock deemed
issuable upon conversion of such outstanding Options and Convertible Securities
shall not give effect to any adjustments to the conversion price or conversion
rate of such Options or Convertible Securities resulting from the issuance of
Additional Shares of Common Stock that is the subject of this calculation.

          Notwithstanding the foregoing, the applicable Exercise Price shall not
be so reduced at such time if the amount of such reduction would be an amount
less than $.05, but any such amount shall be carried forward and reduction with
respect thereto made at the time of and together with any subsequent reduction
which, together with such amount and any other amount or amounts so carried
forward, shall aggregate $.05 or more.

               (v)  Determination of Consideration.  For purposes of this 
                    ------------------------------        
subsection 3(b), the consideration received by the Company for the issue of any
     Additional Shares of Common Stock shall be computed as follows:

                    (A)  Cash and Property:  Such consideration shall:
                         -----------------       

                         (I)    insofar as it consists of cash, be computed at
the aggregate of cash received by the Company, excluding amounts paid or payable
for accrued interest or accrued dividends;

                         (II)   insofar as it consists of property other than
cash, be computed at the fair market value thereof at the time of such issue, as
determined in good faith by the Board of Directors; and

                         (III)  in the event Additional Shares of Common Stock
are issued together with other shares or securities or other assets of the
Company for consideration which covers both, be the proportion of such
consideration so received, computed as provided in clauses (I) and (II) above,
as determined in good faith by the Board of Directors.

                    (B)  Options and Convertible Securities. The consideration
                         ----------------------------------
per share received by the Company for Additional Shares of Common Stock deemed
to have been issued pursuant to subsection 3(b)(iii), relating to Options and
Convertible Securities, shall be determined by dividing

                         (x)    the total amount, if any, received or receivable
by the Company as consideration for the issue of such Options or Convertible
Securities, plus the minimum aggregate amount of additional 

                                      -7-
<PAGE>
 
consideration (as set forth in the instruments relating thereto, without regard
to any provision contained therein for a subsequent adjustment of such
consideration) payable to the Company upon the exercise of such Options or the
conversion or exchange of such Convertible Securities, or in the case of Options
for Convertible Securities, the exercise of such Options for Convertible
Securities and the conversion or exchange of such Convertible Securities, by 

                         (y)  the maximum number of shares of Common Stock (as
set forth in the instruments relating thereto, without regard to any provision
contained therein for a subsequent adjustment of such number) issuable upon the
exercise of such Options or the conversion or exchange of such Convertible
Securities.

          (c)  Recapitalizations. If outstanding shares of Common Stock shall be
               -----------------
subdivided into a greater number of shares or a dividend in Common Stock shall
be paid in respect of Common Stock, the Exercise Price in effect immediately
prior to such subdivision or at the record date of such dividend shall
simultaneously with the effectiveness of such subdivision or immediately after
the record date of such dividend be proportionately reduced. If outstanding
shares of Common Stock shall be combined into a smaller number of shares, the
Exercise Price in effect immediately prior to such combination shall,
simultaneously with the effectiveness of such combination, be proportionately
increased.

          (d)  Mergers, etc. If there shall occur any capital reorganization or
               ------------
reclassification of the Common Stock (other than a change in par value or a
subdivision or combination as provided for in subsection 3(c) above), or any
consolidation or merger of the Company with or into another corporation, or a
transfer of all or substantially all of the assets of the Company, then, as part
of any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, lawful provision shall be made so that the Registered Holder of
this Warrant shall have the right thereafter to receive upon the exercise hereof
the kind and amount of shares of stock or other securities or property which
such Registered Holder would have been entitled to receive if, immediately prior
to any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, such Registered Holder had held the number of shares of Common
Stock which were then issuable upon the exercise of this Warrant. In any such
case, appropriate adjustment (as reasonably determined in good faith by the
Board of Directors of the Company) shall be made in the application of the
provisions set forth herein with respect to the rights and interests thereafter
of the Registered Holder of this Warrant, such that the provisions set forth in
this Section 3 (including provisions with respect to adjustment of the Exercise
Price) shall thereafter be applicable, as nearly as is reasonably practicable,
in relation to any shares of stock or other securities or property thereafter
deliverable upon the exercise of this Warrant.

                                      -8-
<PAGE>
 
          (e)  Adjustment in Number of Warrant Shares. When any adjustment is
               --------------------------------------                   
required to be made in the Exercise Price, the number of Warrant Shares issuable
upon the exercise of this Warrant shall be changed to the number determined by
dividing (i) an amount equal to the number of shares issuable upon the exercise
of this Warrant immediately prior to such adjustment, multiplied by the Exercise
Price in effect immediately prior to such adjustment, by (ii) the Exercise Price
in effect immediately after such adjustment.

          (f)  Certificate of Adjustment. When any adjustment is required to be
               -------------------------                              
made pursuant to this Section 3, the Company shall promptly mail to the
Registered Holder a certificate setting forth the Exercise Price after such
adjustment and setting forth a brief statement of the facts requiring such
adjustment. Such certificate shall also set forth the kind and amount of stock
or other securities or property into which this Warrant shall be exercisable
following such adjustment .

      4.  Fractional Shares. The Company shall not be required upon the exercise
          -----------------                                         
of this Warrant to issue any fractional shares, but shall make an adjustment
therefor in cash on the basis of the Fair Market Value per share of Common
Stock, as determined pursuant to subsection 2(b) above.

      5.  Requirements for Transfer.
          ------------------------- 

          (a)  This Warrant and the Warrant Shares shall not be sold or
transferred unless either (i) they first shall have been registered under the
Securities Act of 1933, as amended (the "Securities Act"), or (ii) the Company
first shall have been furnished with an opinion of legal counsel, reasonably
satisfactory to the Company, to the effect that such sale or transfer is exempt
from the registration requirements of the Act.

          (b)  Notwithstanding the foregoing, no registration or opinion of
counsel shall be required for (i) a transfer by a Registered Holder which is a
partnership to a partner of such partnership or a retired partner of such
partnership who retires after the date hereof, or to the estate of any such
partner or retired partner, if the transferee agrees in writing to be subject to
the terms of this Section 5, (ii) a transfer made in accordance with Rule 144
under the Act, or (iii) a transfer by a Registered Holder which is a corporation
to an affiliate, as defined under Rule 144 of the Securities Act, if the
transferee agrees in writing to be subject to the terms of this Section.

          (c)  Each certificate representing Warrant Shares shall bear a legend
substantially in the following form:

               "The securities represented by this certificate have not been
                registered under the Securities

                                      -9-
<PAGE>
 
               Act of 1933, as amended, and may not be offered, sold or
               otherwise transferred, pledged or hypothecated unless and until
               such securities are registered under such Act or an opinion of
               counsel satisfactory to the Company is obtained to the effect
               that such registration is not required."


The foregoing legend shall be removed from the certificates representing any
Warrant Shares, at the request of the holder thereof, at such time as they
become eligible for resale pursuant to Rule 144(k) under the Act.

      6.  No Impairment.  The Company will not, by amendment of its charter or
          -------------                                                       
through reorganization, consolidation, merger, dissolution, sale of assets or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms of this Warrant, but will at all times in good faith assist
in the carrying out of all such terms and in the taking of all such action as
may be necessary or appropriate in order to protect the rights of the holder of
this Warrant against impairment.

      7.  Liquidating Dividends. If the Company pays a dividend or makes a
          ---------------------                                    
distribution on the Common Stock payable otherwise than in cash out of earnings
or earned surplus (determined in accordance with generally accepted accounting
principles) except for a stock dividend payable in shares of Common Stock (a
"Liquidating Dividend"), then the Company will pay or distribute to the
Registered Holder of this Warrant, upon the exercise hereof, in addition to the
Warrant Shares issued upon such exercise, the Liquidating Dividend which would
have been paid to such Registered Holder if he had been the owner of record of
such Warrant Shares immediately prior to the date on which a record is taken for
such Liquidating Dividend or, if no record is taken, the date as of which the
record holders of Common Stock entitled to such dividends or distribution are to
be determined.

      8.  Optional Redemption.
          ------------------- 

          (a)  At any time, the Company may, at its option, redeem all, but not
less than all, of the Warrant Shares for which the Registered Holder has not
exercised its right to be issued (the "Available Warrant Shares"), by paying
$3.33 per Available Warrant Share (subject to appropriate adjustment for stock
splits, stock dividends, combinations or other similar recapitalizations
affecting such shares) in cash for each Available Warrant Share then redeemed
(hereinafter referred to as the "Redemption Price"); provided, however, that the
Registered Holder may immediately exercise its Warrant or Warrants until such
time on or 15 days prior to the Redemption Date (as defined below).

                                      -10-
<PAGE>
 
          (b)  At least 15 days prior to the date fixed for any redemption of
Available Warrant Shares (hereinafter referred to as the "Redemption Date"),
written notice shall be mailed, by first class or registered mail, postage
prepaid, to the Registered Holder, notifying such holder of the election of the
Company to redeem such Available Warrant Shares, specifying the Redemption Date
and calling upon the Registered Holder to surrender to the Company, in the
manner and at the place designated, its Warrant or Warrants, representing the
Available Warrant Shares to be redeemed (such notice is hereinafter referred to
as the "Redemption Notice"). On or prior to the Redemption Date (subject to the
Registered Holder's right to exercise such Warrants prior to the Redemption
Date), the Registered Holder shall surrender its Warrant or Warrants
representing Available Warrant Shares to the Company, in the manner and at the
place designated in the Redemption Notice, and thereupon the Redemption Price of
such shares shall be payable to the order of the Registered Holder and each
surrendered Warrant shall be cancelled. From and after the Redemption Date,
unless there shall have been a default in payment of the Redemption Price (or
the Registered Holder has exercised the Warrants prior to such Redemption Date),
all rights of the Registered Holder designated for redemption in the Redemption
Notice as the Registered Holder (except the right to receive the Redemption
Price without interest upon surrender of the Warrant) shall cease with respect
to the Warrant or Warrants representing the Available Warrant Shares, and such
Warrant or Warrants shall not thereafter be transferred on the books of the
Company or be deemed to be outstanding for any purpose whatsoever.

      9.  Notices of Record Date, etc.  In case:
          ---------------------------           

          (a)  the Company shall take a record of the holders of its Common
Stock (or other stock or securities at the time deliverable upon the exercise of
this Warrant) for the purpose of entitling or enabling them to receive any
dividend or other distribution, or to receive any right to subscribe for or
purchase any shares of stock of any class or any other securities, or to receive
any other right; or

          (b)  of any capital reorganization of the Company, any
reclassification of the capital stock of the Company, any consolidation or
merger of the Company with or into another corporation (other than a
consolidation or merger in which the Company is the surviving entity), or any
transfer of all or substantially all of the assets of the Company; or

          (c)  of the voluntary or involuntary dissolution, liquidation or
winding-up of the Company, then, and in each such case, the Company will mail or
cause to be mailed to the Registered Holder of this Warrant a notice specifying,
as the case may be, (i) the date on which a record is to be taken for the
purpose of such dividend, distribution or right, and stating the amount and
character of such dividend, distribution or right, or (ii) the effective date on
which such reorganization, reclassification, consolidation, merger, transfer,
dissolution, liquidation or winding-up 

                                      -11-
<PAGE>
 
is to take place, and the time, if any is to be fixed, as of which the holders
of record of Common Stock (or such other stock or securities at the time
deliverable upon the exercise of this Warrant) shall be entitled to exchange
their shares of Common Stock (or such other stock or securities) for securities
or other property deliverable upon such reorganization, reclassification,
consolidation, merger, transfer, dissolution, liquidation or winding-up. Such
notice shall be mailed at least ten (10) days prior to the record date or
effective date for the event specified in such notice.

      10. Reservation of Stock. The Company will at all times reserve and keep
          --------------------                                
available, solely for issuance and delivery upon the exercise of this Warrant,
such number of Warrant Shares and other stock, securities and property, as from
time to time shall be issuable upon the exercise of this Warrant.

      11. Exchange of Warrants. Upon the surrender by the Registered Holder of
          --------------------                            
any Warrant or Warrants, properly endorsed, to the Company at the principal
office of the Company, the Company will, subject to the provisions of Section 5
hereof, issue and deliver to or upon the order of such Registered Holder, at the
Company's expense, a new Warrant or Warrants of like tenor, in the name of such
Registered Holder or as such Registered Holder (upon payment by such Registered
Holder of any applicable transfer taxes) may direct, calling in the aggregate on
the face or faces thereof for the number of shares of Common Stock called for on
the face or faces of the Warrant or Warrants so surrendered.

      12. Replacement of Warrants. Upon receipt of evidence reasonably
          -----------------------                           
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Warrant and (in the case of loss, theft or destruction) upon delivery of an
indemnity agreement (with surety if reasonably required) in an amount reasonably
satisfactory to the Company, or (in the case of mutilation) upon surrender and
cancellation of this Warrant, the Company will issue, in lieu thereof, a new
Warrant of like tenor.

      13. Transfers, etc.
          -------------- 

          (a)  The Company will maintain a register containing the name and
address of the Registered Holder of this Warrant. Any Registered Holder may
change its or his address as shown on the warrant register by written notice to
the Company requesting such change.

          (b)  Subject to the provisions of Section 5 hereof, this Warrant and
all rights hereunder are transferable, in whole or in part, upon surrender of
this Warrant with a properly executed assignment (in the form of Exhibit II
                                                                 ----------
hereto) at the principal office of the Company.

          (c)  Until any transfer of this Warrant is made in the warrant
register, the Company may treat the Registered Holder of this Warrant as the
absolute owner

                                      -12-
<PAGE>
 
hereof for all purposes; provided, however, that if and when this Warrant is
                         --------  -------                       
properly assigned in blank, the Company may (but shall not be obligated to)
treat the bearer hereof as the absolute owner hereof for all purposes,
notwithstanding any notice to the contrary.

      14. Mailing of Notices, etc. All notices and other communications from the
          -----------------------                        
Company to the Registered Holder of this Warrant shall be mailed by first-class
certified or registered mail, postage prepaid, to the address furnished to the
Company in writing by the last Registered Holder of this Warrant who shall have
furnished an address to the Company in writing. All notices and other
communications from the Registered Holder of this Warrant or in connection
herewith to the Company shall be mailed by first-class certified or registered
mail, postage prepaid, to the Company at its principal office set forth below.
If the Company should at any time change the location of its principal office to
a place other than as set forth below, it shall give prompt written notice to
the Registered Holder of this Warrant and thereafter all references in this
Warrant to the location of its principal office at the particular time shall be
as so specified in such notice.

      15. No Rights as Stockholder. Until the exercise of this Warrant, the
          ------------------------                             
Registered Holder of this Warrant shall not have or exercise any rights by
virtue hereof as a stockholder of the Company.

      16. Change or Waiver. Any term of this Warrant may be changed or waived
          ----------------                                          
only by an instrument in writing signed by the party against which enforcement
of the change or waiver is sought.

      17. Headings. The headings in this Warrant are for purposes of reference
          --------                                                
only and shall not limit or otherwise affect the meaning of any provision of
this Warrant.

      18. Governing Law. This Warrant will be governed by and construed in
          -------------                                       
accordance with the laws of Delaware.

      19. Registration Rights.
          ------------------- 

          (a)  The Registered Holder shall have the registration rights with
respect to the Warrant Shares as specified in Section 9 of the Extension
Agreement dated April 29, 1998 by and among the Registered Holder, Fleet Bank,
N.A., Mellon Bank, N.A., the Company and certain of its subsidiaries.

          (b)  Furthermore, the Registered Holder shall be entitled to "piggy-
back" registration rights for so long as the Registered Holder shall own Warrant
Shares. Whenever the Company proposes to file a Registration Statement (other
than pursuant to subsection 19(a) at any time and from time to time, it will,
prior to such

                                      -13-
<PAGE>
 
filing, give written notice to the Registered Holder of its intention to do so
and, upon the written request of the Registered Holder given within 20 days
after the Company provides such notice (which request shall state the intended
method of disposition of such Registrable Shares), the Company shall use its
best efforts to cause all Registrable Shares which the Company has been
requested by such Registered Holder to register to be registered under the
Securities Act to the extent necessary to permit their sale or other disposition
in accordance with the intended methods of distribution specified in the request
of the Registered Holder; provided that the Company shall have the right to
postpone or withdraw any registration effected pursuant to subsection 19(b)
without obligation to the Registered Holder or any persons or entities to whom
the rights under this Warrant are transferred by the Registered Holder, its
successors or assigns pursuant to Section 13 hereof.

          (c)  In connection with any registration under subsection 19(b)
involving an underwriting, the Company shall not be required to include any
Registrable Shares in such registration unless the holders thereof accept the
terms of the underwriting as agreed upon between the Company and the
underwriters selected by it (provided that such terms must be consistent with
this Warrant). If in the opinion of the managing underwriter it is appropriate
because of marketing factors to limit the number of Registrable Shares to be
included in the offering, then the Company shall be required to include in the
registration only that number of Registrable Shares, if any, which the managing
underwriter believes should be included therein. If the number of Registrable
Shares to be included in the offering in accordance with the foregoing is less
than the total number of shares which the holders of Registrable Shares have
requested to be included, then the holders of Registrable Shares who have
requested registration and other holders of securities entitled to include them
in such registration shall participate in the registration pro rata based upon
their total ownership of shares of Common Stock (giving effect to the conversion
into Common Stock of all securities convertible thereinto). If any holder would
thus be entitled to include more securities than such holder requested to be
registered, the excess shall be allocated among other requesting holders pro
rata in the manner described in the preceding sentence.

     20.  Registration Procedures. If and whenever the Company is required by
          -----------------------                                 
the provisions of this Warrant to use its best efforts to effect the
registration of any of the Registrable Shares under the Securities Act, the
Company shall:

          (a)  furnish to the Registered Holder such number of copies as the
Registered Holder shall reasonably request of the prospectus, including a
preliminary prospectus and any amendments or supplements thereto, in conformity
with the requirements of the Securities Act;

          (b)  use its best efforts to register or qualify the Registrable
Shares covered by the Registration Statement under the securities laws of such
states as the 

                                      -14-
<PAGE>
 
Registered Holder shall reasonably request; provided, however, that the Company
                                            --------  -------
shall not be required in connection with this subsection 20(b) to qualify as a
foreign corporation or execute a general consent to service of process in any
jurisdiction;

          (c)  promptly notify the Registered Holder, if the Company has
delivered preliminary or final prospectuses to the Registered Holder and after
having done so, the prospectus is amended to comply with the requirements of the
Securities Act and, if requested by the Company, the Registered Holder shall
immediately cease making offers or sales of Registrable Shares under the
Registration Statement and return all prospectuses to the Company. The Company
shall promptly provide the Registered Holder with revised prospectuses and,
following receipt of the revised prospectuses, the Registered Holder shall be
free to resume making offers and sales of the Registrable Shares; and

          (d)  pay the expenses incurred by it in complying with its obligations
under this Warrant in connection with registration rights, including all
registration and filing fees, exchange listing fees, expenses for the
preparation of the Registration statement, prospectus and any amendments and
supplements thereto, printing and photocopy expenses, fees and expenses of
counsel for the Company, and fees and expenses of accountants for the Company,
but excluding: (i) selling commissions or underwriting discounts incurred by the
Registered Holder in connection with sales of Registrable Shares under the
Registration Statement and (ii) the fees and expenses of any counsel retained by
the Registered Holder.

      21. Requirements of Registered Holder. The Company shall not be required
          ---------------------------------
to effect the registration of any of the Registrable Shares under the Securities
Act pursuant to this Warrant unless:

          (a)  the Registered Holder owning such shares furnishes to the Company
in writing such information regarding such Registered Holder and the proposed
sale of Registrable Shares by such Registered Holder as the Company may
reasonably request in writing in connection with the filing of a Registration
Statement or as shall be required in connection therewith by the Commission or
any state securities law authorities; and

          (b)  Such Registered Holder shall have provided to the Company its
written agreement that in the event of any registration of any of the
Registrable Shares under the Securities Act pursuant to this Warrant, each
Registered Holder will indemnify the Company and its officers and directors and
each person, if any, who controls any thereof (within the meaning of the
Securities Act) against any and all claims, losses, damages and liabilities (or
actions in respect thereof) arising out of or based on any untrue statement (or
alleged untrue statement) of any material fact contained in any prospectus or
other document incident to any registration, qualification or compliance (or in
any related Registration Statement, notification or

                                      -15-
<PAGE>
 
the like) or any omission (or alleged omission) to state therein any material
fact required to be stated therein or necessary to make the statement therein
not misleading, and such Registered Holder will reimburse the Company and each
other person indemnified pursuant to this Section 21 for any legal and any other
expenses reasonably incurred in connection with investigating or defending any
such claim, loss, damage, liability or action; provided, however, that this
                                               --------  -------       
Section 21 shall apply only if (and only to the extent that) such statement or
omission was made in reliance upon written information furnished to the Company
in an instrument duly executed by such Registered Holder and stated to be
specifically for use in such prospectus or other document (or related
Registration Statement, notification or the like) or any amendment or supplement
thereto; and, provided further that each Registered Holder's liability hereunder
              -------- -------                              
with respect to any particular registration shall be limited to an amount equal
to the net proceeds received by such Registered Holder from the Registrable
Securities sold by such Registered Holder in such registration.

      22. Indemnification by Company. In the event of any registration of any of
          --------------------------
the Registrable Shares under the Securities Act pursuant to this Warrant, the
Company will indemnify each Registered Holder and each person who controls the
Registered Holder (within the meaning of the Securities Act) against any and all
claims, losses, damages and liabilities (or actions in respect thereof) arising
out of or based on any untrue statement (or alleged untrue statement) of any
material fact contained in any prospectus or other document incident to any
registration, qualification or compliance (or in any related Registration
Statement, notification or the like) or any omission (or alleged omission) to
state therein any material fact required to be stated therein or necessary to
make the statements therein not misleading, or any violation by the Company of
any rule or regulation promulgated under the Securities Act applicable to the
Company and relating to any action or inaction required of the Company in
connection with any such registration, qualification or compliance, and the
Company will reimburse each such Registered Holder and controlling person for
any legal and any other expenses reasonably incurred in connection with
investigating or defending any such claim, loss, damage, liability or action;
provided, however, that the Company will not be liable in any such case to the
- --------  ------- 
extent that any such claim, loss, damage or liability arises out of or is based
on any untrue statement or omission based upon written information furnished to
the Company in an instrument duly executed by such Registered Holder or
controlling person and specifically for use in such prospectus or other
document.

 
                                      IGI, INC.

                                      /s/   Edward B. Hager    
                                      ________________________________
                                      By:   EDWARD B. HAGER
                                      Title: CHAIRMAN

                                      -16-
<PAGE>
 
                                                                       EXHIBIT I
                                                                       ---------
                                                                                
                                 PURCHASE FORM
                                 -------------
                                        

To:_________________                                          Dated:____________


     The undersigned, pursuant to the provisions set forth in the attached
Warrant (No. ___), hereby irrevocably elects to purchase _____ shares of the
Common Stock covered by such Warrant. The undersigned herewith makes payment of
$____________, representing the full Exercise Price for such shares at the price
per share provided for in such Warrant. Such payment takes the form of (check
applicable box or boxes):

[_]  $______ in lawful money of the United States; and/or

[_]  The cancellation of such portion of the attached Warrant as is exercisable
     for a total of _____ Warrant Shares (using a Fair Market Value of $_____
     per share for purposes of this calculation).

Signature:_____________________

                                                  Address:______________________

                                                          ______________________
<PAGE>
 
                                                                      EXHIBIT II
                                                                      ----------
                                                                                

                                ASSIGNMENT FORM
                                ---------------
                                        

     FOR VALUE RECEIVED, ________________________________________ hereby sells,
assigns and transfers all of the rights of the undersigned under the attached
Warrant (No. ____) with respect to the number of shares of Common Stock covered
thereby set forth below, unto:

Name of Assignee                     Address               No. of Shares
- ----------------                     -------               -------------



Dated:_____________________          Signature:________________________________

Dated:_____________________          Witness:__________________________________

<PAGE>
                                                                   Exhibit 10.36
 
          THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUED UPON ITS
                  EXERCISE ARE SUBJECT TO THE RESTRICTIONS ON
                TRANSFER SET FORTH IN SECTION 4 OF THIS WARRANT
          -----------------------------------------------------------
                                        

Warrant No. 4                                          Number of Shares: 120,000
                                                         (subject to adjustment)
Date of Issuance: May 12, 1998


                                   IGI, INC.
                                   ---------
                                        

                         Common Stock Purchase Warrant
                         -----------------------------

                           (Void after May 12, 2003)


     IGI, Inc., a Delaware corporation (the "Company"), for value received,
hereby certifies that Mellon Bank, N.A., a national banking association, or its
registered assigns (the "Registered Holder"), is entitled, subject to the terms
set forth below, to purchase from the Company, at any time or from time to time
on or after the 60th day after the date of issuance and on or before May 12,
2003 at not later than 5:00 p.m. (Buena, New Jersey time), 120,000 shares of
Common Stock, $.01 par value per share (the "Common Stock"), of the Company, at
a Exercise Price of $3.50 per share. The shares issuable upon exercise of this
Warrant, and the Exercise Price per share, each as adjusted from time to time
pursuant to the provisions of this Warrant, are hereinafter referred to as the
"Warrant Shares" and the "Exercise Price," respectively.

     1.   Certain Definitions. As used in this Warrant, the following terms
          -------------------                                                
shall have the following respective meanings:
 
          "Commission" means the Securities and Exchange Commission, or any
           ----------                                                        
other Federal agency at the time administering the Securities Act.

          "Registration Statement" means a registration statement filed by the
           ----------------------                                            
Company with the Commission for a public offering and sale of Common Stock
(other than a registration statement on Form S-8 or Form S-4, or their
successors, or any other form for a similar limited purpose, or any registration
statement covering only securities proposed to be issued in exchange for
securities or assets of another corporation).

                                      -1-
<PAGE>
 
          "Registrable Shares" means (i) the Warrant Shares, and (ii) any other
           ------------------                                               
shares of Common Stock issued in respect of such shares (because of stock
splits, stock dividends, reclassifications, recapitalizations, or similar
events); provided, however, that shares of Common Stock which are Registrable
         --------  -------                                                   
Shares shall cease to be Registrable Shares (i) upon any sale pursuant to a
Registration Statement or Rule 144 under the Securities Act or (ii) upon any
sale in any manner to a person or entity which, by virtue of Section 13 of this
Warrant, is not entitled to the rights provided by this Warrant.

          "Securities Act" means the Security Act of 1933, as amended, or any
           --------------                                                   
similar Federal statute, and the rules and regulations of the Commission issued
under such Act, as they each may, from time to time, be in effect.
 
     2.   Exercise.
          -------- 

              (a)  This Warrant may be exercised by the Registered Holder, in
whole or in part, by surrendering this Warrant, with the purchase form appended
hereto as Exhibit I duly executed by such Registered Holder or by such
          ---------           
Registered Holder's duly authorized attorney, at the principal office of the
Company, or at such other office or agency as the Company may designate,
accompanied by payment in full, in lawful money of the United States, of the
Exercise Price payable in respect of the number of Warrant Shares issued upon
such exercise.

              (b)  The Registered Holder may, at its option, elect to pay some
or all of the Exercise Price payable upon an exercise of this Warrant by
cancelling a portion of this Warrant exercisable for such number of Warrant
Shares as is determined by dividing (i) the total Exercise Price payable in
respect of the number of Warrant Shares being issued upon such exercise by (ii)
the excess of the Fair Market Value per share of Common Stock as of the
effective date of exercise, as determined pursuant to subsection 2(c) below (the
"Exercise Date") over the Exercise Price per share. If the Registered Holder
wishes to exercise this Warrant pursuant to this method of payment with respect
to the maximum number of Warrant Shares issuable pursuant to this method, then
the number of Warrant Shares so issuable shall be equal to the total number of
Warrant Shares, minus the product obtained by multiplying (x) the total number
of Warrant Shares by (y) a fraction, the numerator of which shall be the
Exercise Price per share and the denominator of which shall be the Fair Market
Value per share of Common Stock as of the Exercise Date. The Fair Market Value
per share of Common Stock shall be determined as follows:

                   (i)   If the Common Stock is listed on a national securities
exchange, the Nasdaq Stock Market or another nationally recognized exchange or
trading system as of the Exercise Date, the Fair Market Value per share of
Common Stock shall be deemed to be the average of the last reported sale price
per share of Common Stock thereon for the ten consecutive trading days ending on
the day immediately prior to the Exercise Date;

                                      -2-
<PAGE>
 
                   (ii)  If the Common Stock is not listed on a national
securities exchange, the Nasdaq Stock Market or another nationally recognized
exchange or trading system as of the Exercise Date, the Fair Market Value per
share of Common Stock shall be deemed to be the amount most recently determined
in good faith by the Board of Directors to represent the fair market value per
share of the Common Stock (including without limitation a determination for
purposes of granting Common Stock options or issuing Common Stock under an
employee benefit plan of the Company); and, upon request of the Registered
Holder, the Board of Directors (or a representative thereof) shall promptly
notify the Registered Holder of the Fair Market Value per share of Common Stock.
Notwithstanding the foregoing, if the Board of Directors has not made such a
determination within a forty-five day period prior to the Exercise Date, then
(A) the Fair Market Value per share of Common Stock shall be the amount next
determined in good faith by the Board of Directors to represent the fair market
value per share of the Common Stock (including without limitation a
determination for purposes of granting Common Stock options or issuing Common
Stock under an employee benefit plan of the Company), (B) the Board of Directors
shall make such a determination within 15 days of a request by the Registered
Holder that it do so, and (C) the exercise of this Warrant pursuant to this
subsection 2(b) shall be delayed until such determination is made.

              (c)  Each exercise of this Warrant shall be deemed to have been
effected immediately prior to the close of business on the day on which this
Warrant shall have been surrendered to the Company as provided in subsection
2(a) above. At such time, the person or persons in whose name or names any
certificates for Warrant Shares shall be issuable upon such exercise as provided
in subsection 2(d) below shall be deemed to have become the holder or holders of
record of the Warrant Shares represented by such certificates.

              (d)  As soon as practicable after the exercise of this Warrant in
full or in part, and in any event within 10 days thereafter, the Company, at its
expense, will cause to be issued in the name of, and delivered to, the
Registered Holder, or as such Registered Holder (upon payment by such Holder of
any applicable transfer taxes) may direct:

                   (i)   a certificate or certificates for the number of full
Warrant Shares to which such Registered Holder shall be entitled upon such
exercise plus, in lieu of any fractional share to which such Registered Holder
would otherwise be entitled, cash in an amount determined pursuant to Section 4
hereof; and

                   (ii)  in case such exercise is in part only, a new warrant or
warrants (dated the date hereof) of like tenor, calling in the aggregate on the
face or faces thereof for the number of Warrant Shares equal (without giving
effect to any adjustment therein) to the number of such shares called for on the
face of this Warrant minus the sum of (a) the number of such shares purchased by
the Registered Holder upon such exercise plus (b) the number of Warrant Shares
(if any) covered by

                                      -3-
<PAGE>
 
the portion of this Warrant cancelled in payment of the Exercise Price payable
upon such exercise pursuant to subsection 2(b) above.

              (e)  Notwithstanding the foregoing, the Warrant shall become
immediately exercisable by the Registered Holder upon (i) the occurrence of an
Event of Default (as defined in the Extension Agreement dated April 29, 1998 by
and among the Registered Holder, Fleet Bank-N.H., Mellon Bank, N.A., the Company
and certain of its subsidiaries) or (ii) the mailing date of written notice by
the Company of its intention to exercise its right under Section 8 to redeem
Available Warrant Shares (as defined under subsection 8(a)).

          3.  Adjustments.
              ----------- 

              (a)  General. The Exercise Price shall be subject to adjustment
                   -------  
from time to time pursuant to the terms of this Section 3.

              (b)  Diluting Issuances.
                   ------------------ 

                   (i)   Special Definitions. For purposes of this subsection
                         ------------------- 
3(b), the following definitions shall apply:

                         (A)  "Option" shall mean rights, options or warrants to
                               ------ 
subscribe for, purchase or otherwise acquire Common Stock or Convertible
Securities, excluding options described in clause (II) of subsection 3(b)(i)(D)
below.

                         (B)  "Original Issue Date" shall mean the date on which
                               ------------------- 
this Warrant was first issued.

                         (C)  "Convertible Securities" shall mean any evidences
                               ----------------------  
of indebtedness, shares or other securities directly or indirectly convertible
into or exchangeable for Common Stock.

                         (D)  "Additional Shares of Common Stock" shall mean all
                               ---------------------------------  
shares of Common Stock issued (or, pursuant to subsection 3(b)(iii) below,
deemed to be issued) by the Company after the Original Issue Date, other than
shares of Common Stock issued or issuable:

                         (I)  by reason of a dividend, stock split, split-up or
                              other distribution on shares of Common Stock that
                              are excluded from the definition of Additional
                              Shares of Common Stock by this clause (I); or

                         (II) to employees or directors of, or consultants to,
                              the Company pursuant to a plan adopted by the
                              Board of Directors of the Company.

                                      -4-
<PAGE>
 
                   (ii)  No Adjustment of Exercise Price. No adjustments to the
                         -------------------------------                    
Exercise Price shall be made unless the consideration per share (determined
pursuant to subsection 3(b)(v)) for an Additional Share of Common Stock issued
or deemed to be issued by the Company is less than the Exercise Price in effect
on the date of, and immediately prior to, the issue of such Additional Shares.

                   (iii) Issue of Securities Deemed Issue of Additional Shares
                         -----------------------------------------------------
of Common Stock. If the Company at any time or from time to time after the
- ---------------
Original Issue Date shall issue any Options or Convertible Securities or shall
fix a record date for the determination of holders of any class of securities
entitled to receive any such Options or Convertible Securities, then the maximum
number of shares of Common Stock (as set forth in the instrument relating
thereto without regard to any provision contained therein for a subsequent
adjustment of such number) issuable upon the exercise of such Options or, in the
case of Convertible Securities and Options therefor, the conversion or exchange
of such Convertible Securities, shall be deemed to be Additional Shares of
Common Stock issued as of the time of such issue or, in case such a record date
shall have been fixed, as of the close of business on such record date, provided
that Additional Shares of Common Stock shall not be deemed to have been issued
unless the consideration per share (determined pursuant to subsection 3(b)(v)
hereof) of such Additional Shares of Common Stock would be less than the
Exercise Price in effect on the date of and immediately prior to such issue, or
such record date, as the case may be, and provided further that in any such case
in which Additional Shares of Common Stock are deemed to be issued:

                         (A)  No further adjustment in the Exercise Price shall
be made upon the subsequent issue of Convertible Securities or shares of Common
Stock upon the exercise of such Options or conversion or exchange of such
Convertible Securities;

                         (B)  If such Options or Convertible Securities by their
terms provide, with the passage of time or otherwise, for any increase in the
consideration payable to the Company, upon the exercise, conversion or exchange
thereof, the Exercise Price computed upon the original issue thereof (or upon
the occurrence of a record date with respect thereto), and any subsequent
adjustments based thereon, shall, upon any such increase becoming effective, be
recomputed to reflect such increase insofar as it affects such Options or the
rights of conversion or exchange under such Convertible Securities;

                         (C)  Upon the expiration or termination of any
unexercised Option, the Exercise Price shall not be readjusted, but the
Additional Shares of Common Stock deemed issued as the result of the original
issue of such Option shall not be deemed issued for the purposes of any
subsequent adjustment of the Exercise Price;

                                      -5-
<PAGE>
 
                         (D)  In the event of any change in the number of shares
of Common Stock issuable upon the exercise, conversion or exchange of any Option
or Convertible Security, including, but not limited to, a change resulting from
the anti-dilution provisions thereof, the Exercise Price then in effect shall
forthwith be readjusted to such Exercise Price as would have obtained had the
adjustment which was made upon the issuance of such Option or Convertible
Security not exercised or converted prior to such change been made upon the
basis of such change; and

                         (E)  No readjustment pursuant to Clause (B) or (D)
above shall have the effect of increasing the Exercise Price to an amount which
exceeds the lower of (i) the Exercise Price on the original adjustment date, or
(ii) the Exercise Price that would have resulted from any issuances of
Additional Shares of Common Stock between the original adjustment date and such
readjustment date.

                   (iv)  Adjustment of Exercise Price Upon Issuance of
                         ---------------------------------------------
Additional Shares of Common Stock. In the event the Company shall at any
- ---------------------------------
time after the Original Issue Date issue Additional Shares of Common Stock
(including Additional Shares of Common Stock deemed to be issued pursuant to
subsection 3(b)(iii), but excluding shares issued as a dividend or distribution
or upon a stock split or combination as provided in subsection 3(c)), without
consideration or for a consideration per share less than the Exercise Price in
effect on the date of and immediately prior to such issue, then and in such
event, such Exercise Price shall be reduced, concurrently with such issue, to a
price (calculated to the nearest cent) determined by multiplying such Exercise
Price by a fraction, (A) the numerator of which shall be (1) the number of
shares of Common Stock outstanding immediately prior to such issue plus (2) the
number of shares of Common Stock which the aggregate consideration received or
to be received by the Company for the total number of Additional Shares of
Common Stock so issued would purchase at such Exercise Price; and (B) the
denominator of which shall be the number of shares of Common Stock outstanding
immediately prior to such issue plus the number of such Additional Shares of
Common Stock so issued; provided that, (i) for the purpose of this subsection
                        -------- ----         
3(b)(iv), all shares of Common Stock issuable upon exercise or conversion of
Options or Convertible Securities outstanding immediately prior to such issue
shall be deemed to be outstanding (other than shares excluded from the
definition of "Additional Shares of Common Stock" by virtue of clause (II) of
subsection 3(b)(i)(D)), and (ii) the number of shares of Common Stock deemed
issuable upon conversion of such outstanding Options and Convertible Securities
shall not give effect to any adjustments to the conversion price or conversion
rate of such Options or Convertible Securities resulting from the issuance of
Additional Shares of Common Stock that is the subject of this calculation.

          Notwithstanding the foregoing, the applicable Exercise Price shall not
be so reduced at such time if the amount of such reduction would be an amount
less than $.05, but any such amount shall be carried forward and reduction with
respect thereto made at the time of and together with any subsequent reduction
which, 

                                      -6-
<PAGE>
 
together with such amount and any other amount or amounts so carried forward,
shall aggregate $.05 or more.

              (v)  Determination of Consideration. For purposes of this
                   ------------------------------                      
subsection 3(b), the consideration received by the Company for the issue of any
Additional Shares of Common Stock shall be computed as follows:

                   (A)   Cash and Property:  Such consideration shall:
                         -----------------                            

                         (I)   insofar as it consists of cash, be computed at
the aggregate of cash received by the Company, excluding amounts paid or payable
for accrued interest or accrued dividends;

                         (II)  insofar as it consists of property other than
cash, be computed at the fair market value thereof at the time of such issue, as
determined in good faith by the Board of Directors; and

                         (III) in the event Additional Shares of Common Stock
are issued together with other shares or securities or other assets of the
Company for consideration which covers both, be the proportion of such
consideration so received, computed as provided in clauses (I) and (II) above,
as determined in good faith by the Board of Directors.

                   (B)   Options and Convertible Securities. The consideration
                         ----------------------------------  
per share received by the Company for Additional Shares of Common Stock deemed
to have been issued pursuant to subsection 3(b)(iii), relating to Options and
Convertible Securities, shall be determined by dividing

                         (x)  the total amount, if any, received or receivable
by the Company as consideration for the issue of such Options or Convertible
Securities, plus the minimum aggregate amount of additional consideration (as
set forth in the instruments relating thereto, without regard to any provision
contained therein for a subsequent adjustment of such consideration) payable to
the Company upon the exercise of such Options or the conversion or exchange of
such Convertible Securities, or in the case of Options for Convertible
Securities, the exercise of such Options for Convertible Securities and the
conversion or exchange of such Convertible Securities, by

                         (y)  the maximum number of shares of Common Stock (as
set forth in the instruments relating thereto, without regard to any provision
contained therein for a subsequent adjustment of such number) issuable upon the
exercise of such Options or the conversion or exchange of such Convertible
Securities.

          (c)  Recapitalizations.  If outstanding shares of Common Stock shall
               -----------------
be subdivided into a greater number of shares or a dividend in Common Stock 
shall

                                      -7-
<PAGE>
 
be paid in respect of Common Stock, the Exercise Price in effect immediately
prior to such subdivision or at the record date of such dividend shall
simultaneously with the effectiveness of such subdivision or immediately after
the record date of such dividend be proportionately reduced. If outstanding
shares of Common Stock shall be combined into a smaller number of shares, the
Exercise Price in effect immediately prior to such combination shall,
simultaneously with the effectiveness of such combination, be proportionately
increased.

          (d) Mergers, etc.  If there shall occur any capital reorganization or
              ------------
subdivision or combination as provided for in subsection 3(c) above), or any
consolidation or merger of the Company with or into another corporation, or a
transfer of all or substantially all of the assets of the Company, then, as part
of any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, lawful provision shall be made so that the Registered Holder of
this Warrant shall have the right thereafter to receive upon the exercise hereof
the kind and amount of shares of stock or other securities or property which
such Registered Holder would have been entitled to receive if, immediately prior
to any such reorganization, reclassification, consolidation, merger or sale, as
the case may be, such Registered Holder had held the number of shares of Common
Stock which were then issuable upon the exercise of this Warrant. In any such
case, appropriate adjustment (as reasonably determined in good faith by the
Board of Directors of the Company) shall be made in the application of the
provisions set forth herein with respect to the rights and interests thereafter
of the Registered Holder of this Warrant, such that the provisions set forth in
this Section 3 (including provisions with respect to adjustment of the Exercise
Price) shall thereafter be applicable, as nearly as is reasonably practicable,
in relation to any shares of stock or other securities or property thereafter
deliverable upon the exercise of this Warrant.

          (e) Adjustment in Number of Warrant Shares. When any adjustment is
              --------------------------------------                        
required to be made in the Exercise Price, the number of Warrant Shares
purchasable upon the exercise of this Warrant shall be changed to the number
determined by dividing (i) an amount equal to the number of shares issuable upon
the exercise of this Warrant immediately prior to such adjustment, multiplied by
the Exercise Price in effect immediately prior to such adjustment, by (ii) the
Exercise Price in effect immediately after such adjustment.

          (f) Certificate of Adjustment. When any adjustment is required to be
              -------------------------
made pursuant to this Section 3, the Company shall promptly mail to the
Registered Holder a certificate setting forth the Exercise Price after such
adjustment. Such certificate shall also set forth the kind and amount of stock
or other securities or property into which this Warrant shall be exercisable
following such adjustment.

                                      -8-
<PAGE>
 
     4.   Fractional Shares. The Company shall not be required upon the exercise
          -----------------                                         
of this Warrant to issue any fractional shares, but shall make an adjustment
therefor in cash on the basis of the Fair Market Value per share of Common
Stock, as determined pursuant to subsection 2(b) above.

     5.   Requirements for Transfer.
          ------------------------- 

          (a)  This Warrant and the Warrant Shares shall not be sold or
transferred unless either (i) they first shall have been registered under the
Securities Act of 1933, as amended (the "Securities Act"), or (ii) the Company
first shall have been furnished with an opinion of legal counsel, reasonably
satisfactory to the Company, to the effect that such sale or transfer is exempt
from the registration requirements of the Act.

          (b)  Notwithstanding the foregoing, no registration or opinion of
counsel shall be required for (i) a transfer by a Registered Holder which is a
partnership to a partner of such partnership or a retired partner of such
partnership who retires after the date hereof, or to the estate of any such
partner or retired partner, if the transferee agrees in writing to be subject to
the terms of this Section 5, (ii) a transfer made in accordance with Rule 144
under the Act, or (iii) a transfer by a Registered Holder which is a corporation
to an affiliate, as defined under Rule 144 of the Securities Act, if the
transferee agrees in writing to be subject to the terms of this Section.

          (c)  Each certificate representing Warrant Shares shall bear a legend
substantially in the following form:

               "The securities represented by this certificate 
               have not been registered under the Securities
               Act of 1933, as amended, and may not be offered,
               sold or otherwise transferred, pledged or 
               hypothecated unless and until such securities 
               are registered under such Act or an opinion of 
               counsel satisfactory to the Company is obtained 
               to the effect that such registration is not
               required."

The foregoing legend shall be removed from the certificates representing any
Warrant Shares, at the request of the holder thereof, at such time as they
become eligible for resale pursuant to Rule 144(k) under the Act.

                                      -9-
<PAGE>
 
     6.   No Impairment. The Company will not, by amendment of its charter or
          -------------                                            
through reorganization, consolidation, merger, dissolution, sale of assets or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms of this Warrant, but will at all times in good faith assist
in the carrying out of all such terms and in the taking of all such action as
may be necessary or appropriate in order to protect the rights of the holder of
this Warrant against impairment.

     7.   Liquidating Dividends. If the Company pays a dividend or makes a
          ---------------------                                    
distribution on the Common Stock payable otherwise than in cash out of earnings
or earned surplus (determined in accordance with generally accepted accounting
principles) except for a stock dividend payable in shares of Common Stock (a
"Liquidating Dividend"), then the Company will pay or distribute to the
Registered Holder of this Warrant, upon the exercise hereof, in addition to the
Warrant Shares issued upon such exercise, the Liquidating Dividend which would
have been paid to such Registered Holder if he had been the owner of record of
such Warrant Shares immediately prior to the date on which a record is taken for
such Liquidating Dividend or, if no record is taken, the date as of which the
record holders of Common Stock entitled to such dividends or distribution are to
be determined.

     8.   Optional Redemption.
          ------------------- 
        
          (a) At any time, the Company may, at its option, redeem all, but not
less than all, of the Warrant Shares for which the Registered Holder has not
exercised its right to be issued (the "Available Warrant Shares"), by paying
$3.33 per Available Warrant Share (subject to appropriate adjustment for stock
splits, stock dividends, combinations or other similar recapitalizations
affecting such shares) in cash for each Available Warrant Share then redeemed
(hereinafter referred to as the "Redemption Price"); provided, however, that the
Registered Holder may immediately exercise its Warrant or Warrants until such
time on or 15 days prior to the Redemption Date (as defined below).

          (b) At least 15 days prior to the date fixed for any redemption of
Available Warrant Shares (hereinafter referred to as the "Redemption Date"),
written notice shall be mailed, by first class or registered mail, postage
prepaid, to the Registered Holder, notifying such holder of the election of the
Company to redeem such Available Warrant Shares, specifying the Redemption Date
and calling upon the Registered Holder to surrender to the Company, in the
manner and at the place designated, its Warrant or Warrants, representing the
Available Warrant Shares to be redeemed (such notice is hereinafter referred to
as the "Redemption Notice"). On or prior to the Redemption Date (subject to the
Registered Holder's right to exercise such Warrants prior to the Redemption
Date), the Registered Holder shall surrender its Warrant or Warrants
representing Available Warrant Shares to the Company, in the manner and at the
place designated in the Redemption Notice, and thereupon the Redemption Price of
such shares shall be payable to the order of the Registered Holder and each
surrendered Warrant shall be cancelled. From and after the 

                                     -10-
<PAGE>
 
Redemption Date, unless there shall have been a default in payment of the
Redemption Price (or the Registered Holder has exercised the Warrants prior to
such Redemption Date), all rights of the Registered Holder designated for
redemption in the Redemption Notice as the Registered Holder (except the right
to receive the Redemption Price without interest upon surrender of the Warrant)
shall cease with respect to the Warrant or Warrants representing the Available
Warrant Shares, and such Warrant or Warrants shall not thereafter be transferred
on the books of the Company or be deemed to be outstanding for any purpose
whatsoever.

     9.   Notices of Record Date, etc.  In case:
          ---------------------------           

          (a) the Company shall take a record of the holders of its Common Stock
(or other stock or securities at the time deliverable upon the exercise of this
Warrant) for the purpose of entitling or enabling them to receive any dividend
or other distribution, or to receive any right to subscribe for or purchase any
shares of stock of any class or any other securities, or to receive any other
right; or

          (b) of any capital reorganization of the Company, any reclassification
of the capital stock of the Company, any consolidation or merger of the Company
with or into another corporation (other than a consolidation or merger in which
the Company is the surviving entity), or any transfer of all or substantially
all of the assets of the Company; or

          (c) of the voluntary or involuntary dissolution, liquidation or
winding-up of the Company, then, and in each such case, the Company will mail or
cause to be mailed to the Registered Holder of this Warrant a notice specifying,
as the case may be, (i) the date on which a record is to be taken for the
purpose of such dividend, distribution or right, and stating the amount and
character of such dividend, distribution or right, or (ii) the effective date on
which such reorganization, reclassification, consolidation, merger, transfer,
dissolution, liquidation or winding-up is to take place, and the time, if any is
to be fixed, as of which the holders of record of Common Stock (or such other
stock or securities at the time deliverable upon the exercise of this Warrant)
shall be entitled to exchange their shares of Common Stock (or such other stock
or securities) for securities or other property deliverable upon such
reorganization, reclassification, consolidation, merger, transfer, dissolution,
liquidation or winding-up. Such notice shall be mailed at least ten (10) days
prior to the record date or effective date for the event specified in such
notice.

     10.  Reservation of Stock. The Company will at all times reserve and keep
          --------------------                                
available, solely for issuance and delivery upon the exercise of this Warrant,
such number of Warrant Shares and other stock, securities and property, as from
time to time shall be issuable upon the exercise of this Warrant.

     11.  Exchange of Warrants. Upon the surrender by the Registered Holder of
          --------------------                            
any Warrant or Warrants, properly endorsed, to the Company at the principal
office 

                                     -11-
<PAGE>
 
of the Company, the Company will, subject to the provisions of Section 5
hereof, issue and deliver to or upon the order of such Registered Holder, at the
Company's expense, a new Warrant or Warrants of like tenor, in the name of such
Registered Holder or as such Registered Holder (upon payment by such Registered
Holder of any applicable transfer taxes) may direct, calling in the aggregate on
the face or faces thereof for the number of shares of Common Stock called for on
the face or faces of the Warrant or Warrants so surrendered.

     12.  Replacement of Warrants. Upon receipt of evidence reasonably
          -----------------------                           
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Warrant and (in the case of loss, theft or destruction) upon delivery of an
indemnity agreement (with surety if reasonably required) in an amount reasonably
satisfactory to the Company, or (in the case of mutilation) upon surrender and
cancellation of this Warrant, the Company will issue, in lieu thereof, a new
Warrant of like tenor.

     13.  Transfers, etc.
          -------------- 

          (a) The Company will maintain a register containing the name and
address of the Registered Holder of this Warrant. Any Registered Holder may
change its or his address as shown on the warrant register by written notice to
the Company requesting such change.

          (b) Subject to the provisions of Section 5 hereof, this Warrant and
all rights hereunder are transferable, in whole or in part, upon surrender of
this Warrant with a properly executed assignment (in the form of Exhibit II
                                                                 ----------
hereto) at the principal office of the Company.

          (c) Until any transfer of this Warrant is made in the warrant
register, the Company may treat the Registered Holder of this Warrant as the
absolute owner hereof for all purposes; provided, however, that if and when
                                        -------- --------
this Warrant is properly assigned in blank, the Company may (but shall not be
obligated to) treat the bearer hereof as the absolute owner hereof for all
purposes, notwithstanding any notice to the contrary.

     14.  Mailing of Notices, etc. All notices and other communications from the
          -----------------------                        
Company to the Registered Holder of this Warrant shall be mailed by first-class
certified or registered mail, postage prepaid, to the address furnished to the
Company in writing by the last Registered Holder of this Warrant who shall have
furnished an address to the Company in writing. All notices and other
communications from the Registered Holder of this Warrant or in connection
herewith to the Company shall be mailed by first-class certified or registered
mail, postage prepaid, to the Company at its principal office set forth below.
If the Company should at any time change the location of its principal office to
a place other than as set forth below, it shall give prompt written notice to
the Registered

                                     -12-
<PAGE>
 
Holder of this Warrant and thereafter all references in this Warrant to the
location of its principal office at the particular time shall be as so specified
in such notice.

     15.  No Rights as Stockholder. Until the exercise of this Warrant, the
          ------------------------                             
Registered Holder of this Warrant shall not have or exercise any rights by
virtue hereof as a stockholder of the Company.

     16.  Change or Waiver. Any term of this Warrant may be changed or waived
          ----------------                                          
only by an instrument in writing signed by the party against which enforcement
of the change or waiver is sought.

     17.  Headings. The headings in this Warrant are for purposes of reference
          --------                                                
only and shall not limit or otherwise affect the meaning of any provision of
this Warrant.

     18.  Governing Law. This Warrant will be governed by and construed in
          -------------                                       
accordance with the laws of Delaware.

     19.  Registration Rights.
          ------------------- 

          (a) The Registered Holder shall have the demand registration rights
with respect to the Warrant Shares as specified in Section 9 of the Extension
Agreement dated April 29, 1998 by and among the Registered Holder, Fleet Bank,
N.A., Mellon Bank, N.A., the Company and certain of its subsidiaries.

          (b) Furthermore, the Registered Holder shall be entitled to "piggy-
back" registration rights for so long as the Registered Holder shall own Warrant
Shares. Whenever the Company proposes to file a Registration Statement (other
than pursuant to subsection 19(a) at any time and from time to time, it will,
prior to such filing, give written notice to the Registered Holder of its
intention to do so and, upon the written request of the Registered Holder given
within 20 days after the Company provides such notice (which request shall state
the intended method of disposition of such Registrable Shares), the Company
shall use its best efforts to cause all Registrable Shares which the Company has
been requested by such Registered Holder to register to be registered under the
Securities Act to the extent necessary to permit their sale or other disposition
in accordance with the intended methods of distribution specified in the request
of the Registered Holder; provided that the Company shall have the right to
postpone or withdraw any registration effected pursuant to this subsection 19(b)
without obligation to the Registered Holder or any persons or entities to which
the rights under this Warrant are transferred by the Registered Holder, its
successors or assigns pursuant to Section 13 hereof.

          (c) In connection with any registration under subsection 19(b)
involving an underwriting, the Company shall not be required to include any
Registrable Shares in such registration unless the holders thereof accept the
terms of 

                                     -13-
<PAGE>
 
the underwriting as agreed upon between the Company and the underwriters
selected by it (provided that such terms must be consistent with this Warrant).
If in the opinion of the managing underwriter it is appropriate because of
marketing factors to limit the number of Registrable Shares to be included in
the offering, then the Company shall be required to include in the registration
only that number of Registrable Shares, if any, which the managing underwriter
believes should be included therein. If the number of Registrable Shares to be
included in the offering in accordance with the foregoing is less than the total
number of shares which the holders of Registrable Shares have requested to be
included, then the holders of Registrable Shares who have requested registration
and other holders of securities entitled to include them in such registration
shall participate in the registration pro rata based upon their total ownership
of shares of Common Stock (giving effect to the conversion into Common Stock of
all securities convertible thereinto). If any holder would thus be entitled to
include more securities than such holder requested to be registered, the excess
shall be allocated among other requesting holders pro rata in the manner
described in the preceding sentence.

     20.  Registration Procedures. If and whenever the Company is required by
          -----------------------                                 
the provisions of this Warrant to use to effect the registration of any of the
Registrable Shares under the Securities Act, the Company shall:

          (a) furnish to the Registered Holder such number of copies as the
Registered Holder shall reasonably request of the prospectus, including a
preliminary prospectus and any amendments or supplements thereto, in conformity
with the requirements of the Securities Act;

          (b) use its best efforts to register or qualify the Registrable Shares
covered by the Registration Statement under the securities laws of such states
as the Registered Holder shall reasonably request; provided, however, that the
                                                   -------- --------
Company shall not be required in connection with this subsection 20(b) to
qualify as a foreign corporation or execute a general consent to service of
process in any jurisdiction;

          (c) promptly notify the Registered Holder, if the Company has
delivered preliminary or final prospectuses to the Registered Holder and after
having done so, the prospectus is amended to comply with the requirements of the
Securities Act and, if requested by the Company, the Registered Holder shall
immediately cease making offers or sales of Registrable Shares under the
Registration Statement and return all prospectuses to the Company. The Company
shall promptly provide the Registered Holder with revised prospectuses and,
following receipt of the revised prospectuses, the Registered Holder shall be
free to resume making offers and sales of the Registrable Shares; and

          (d) pay the expenses incurred by it in complying with its obligations
under this Warrant in connection with registration rights, including all
registration and filing fees, exchange listing fees, expenses for the
preparation of the Registration

                                     -14-
<PAGE>
 
statement, prospectus and any amendments and supplements thereto, printing and
photocopy expenses, fees and expenses of counsel for the Company, and fees and
expenses of accountants for the Company, but excluding: (i) selling commissions
or underwriting discounts incurred by the Registered Holder in connection with
sales of Registrable Shares under the Registration Statement and (ii) the fees
and expenses of any counsel retained by the Registered Holder.

     21.  Requirements of Registered Holder. The Company shall not be required 
          ----------------------------------                       
to effect the registration of any of the Registrable Shares under the Securities
Act pursuant to this Warrant unless:

          (a) the Registered Holder owning such shares furnishes to the Company
in writing such information regarding such Registered Holder and the proposed
sale of Registrable Shares by such Registered Holder as the Company may
reasonably request in writing in connection with the filing of a Registration
Statement or as shall be required in connection therewith by the Commission or
any state securities law authorities; and

          (b) Such Registered Holder shall have provided to the Company its
written agreement that in the event of any registration of any of the
Registrable Shares under the Securities Act pursuant to this Warrant, each
Registered Holder will indemnify the Company and its officers and directors and
each person, if any, who controls any thereof (within the meaning of the
Securities Act) against any and all claims, losses, damages and liabilities (or
actions in respect thereof) arising out of or based on any untrue statement (or
alleged untrue statement) of any material fact contained in any prospectus or
other document incident to any registration, qualification or compliance (or in
any related Registration Statement, notification or the like) or any omission
(or alleged omission) to state therein any material fact required to be stated
therein or necessary to make the statement therein not misleading, and such
Registered Holder will reimburse the Company and each other person indemnified
pursuant to this Section 21 for any legal and any other expenses reasonably
incurred in connection with investigating or defending any such claim, loss,
damage, liability or action; provided, however, that this Section 21
                             --------  -------
shall apply only if (and only to the extent that) such statement or omission was
made in reliance upon written information furnished to the Company in an
instrument duly executed by such Registered Holder and stated to be specifically
for use in such prospectus or other document (or related Registration Statement,
notification or the like) or any amendment or supplement thereto; and, provided
                                                                       --------
further that each Registered Holder's liability hereunder with respect to any
- -------
particular registration shall be limited to an amount equal to the net proceeds
received by such Registered Holder from the Registrable Securities sold by such
Registered Holder in such registration.

     22.  Indemnification by Company. In the event of any registration of any of
          --------------------------                      
the Registrable Shares under the Securities Act pursuant to this Warrant, the
Company will indemnify each Registered Holder and each person who controls the

                                     -15-
<PAGE>
 
Registered Holder (within the meaning of the Securities Act) against any and all
claims, losses, damages and liabilities (or actions in respect thereof) arising
out of or based on any untrue statement (or alleged untrue statement) of any
material fact contained in any prospectus or other document incident to any
registration, qualification or compliance (or in any related Registration
Statement, notification or the like) or any omission (or alleged omission) to
state therein any material fact required to be stated therein or necessary to
make the statements therein not misleading, or any violation by the Company of
any rule or regulation promulgated under the Securities Act applicable to the
Company and relating to any action or inaction required of the Company in
connection with any such registration, qualification or compliance, and the
Company will reimburse each such Registered Holder and controlling person for
any legal and any other expenses reasonably incurred in connection with
investigating or defending any such claim, loss, damage, liability or action;
provided, however, that the Company will not be liable in any such case to the
- --------  -------
extent that any such claim, loss, damage or liability arises out of or is based
on any untrue statement or omission based upon written information furnished to
the Company in an instrument duly executed by such Registered Holder or
controlling person and specifically for use in such prospectus or other
document.


                                        IGI, INC.

                                        /s/ Edward B. Hager
                                        --------------------------- 
                                        By:    EDWARD B. HAGER
                                        Title: CHAIRMAN
                                     
                                     -16-
<PAGE>
 
                                                                       EXHIBIT I
                                                                       ---------
                                                                                

                                 PURCHASE FORM
                                 -------------
                                        

To:_________________                                          Dated:____________


     The undersigned, pursuant to the provisions set forth in the attached
Warrant (No. ___), hereby irrevocably elects to purchase _____ shares of the
Common Stock covered by such Warrant. The undersigned herewith makes payment of
$____________, representing the full Exercise Price for such shares at the price
per share provided for in such Warrant. Such payment takes the form of (check
applicable box or boxes):

[_]  $______ in lawful money of the United States; and/or

[_]  The cancellation of such portion of the attached Warrant as is exercisable
     for a total of _____ Warrant Shares (using a Fair Market Value of $_____
     per share for purposes of this calculation).

Signature:_____________________

                                                 Address:______________________

                                                         ______________________
<PAGE>
 
                                                                      EXHIBIT II
                                                                      ----------
                                                                                

                                ASSIGNMENT FORM
                                ---------------
                                        

     FOR VALUE RECEIVED, ________________________________________ hereby sells,
assigns and transfers all of the rights of the undersigned under the attached
Warrant (No. ____) with respect to the number of shares of Common Stock covered
thereby set forth below, unto:

Name of Assignee                     Address                  No. of 
- ----------------                     -------                  ------
Shares
- ------


Dated:_____________________          Signature:________________________________

Dated:_____________________          Witness:_________________________________

<PAGE>
 
                                                                      EXHIBIT 11

                  COMPUTATION OF NET INCOME PER COMMON SHARE
         (amounts in thousands except share and per share information)


<TABLE> 
<CAPTION> 
                                                                           For the years ended December 31,
                                                                         1997            1996            1995
                                                                         ----            ----            ----
                                                                                       (Restated)     (Restated)
<S>                                                                    <C>            <C>             <C> 
Income (loss) from continuing operations.............................  $   (1,453)    $     (138)     $     1,329
Loss from discontinued operations....................................           -              -           (4,034)
                                                                       ----------     ----------      -----------
Net Loss.............................................................  $   (1,453)    $     (138)     $    (2,705)
                                                                       ==========     ==========      ===========

Weighted average shares outstanding...................................  9,457,938      9,323,440        9,173,156

Dilutive common stock equivalents
 (net of common stock deemed
 reacquired) based on average
 market price........................................................           -              -          552,074
                                                                       ----------     ----------      -----------
Diluted common and common
 equivalent shares...................................................   9,457,938      9,323,440        9,725,230
                                                                       ==========     ==========      ===========

Income (loss) per common and common equivalent share:
    Basic:
         From continuing operations..................................  $     (.15)    $     (.01)     $       .14
                                                                       ==========     ==========      ===========
         From discontinued operations................................  $        -     $        -      $      (.44)
                                                                       ==========     ==========      ===========
         Net loss....................................................  $     (.15)    $     (.01)     $      (.29)
                                                                       ==========     ==========      ===========
    Diluted:
         From continuing operations..................................  $     (.15)    $     (.01)     $       .14
                                                                       ==========     ==========      ===========
         From discontinued operations................................  $        -     $        -      $      (.41)
                                                                       ==========     ==========      ===========
         Net loss....................................................  $     (.15)    $     (.01)     $      (.28)
                                                                       ==========     ==========      =========== 
</TABLE> 


<PAGE>
 
                                                                      EXHIBIT 21

                       LIST OF SUBSIDIARIES OF IGI, INC.


                      IGEN, Inc., a Delaware corporation

                  ImmunoGenetics, Inc., a Delaware corporation

                Marketing Aspects, Inc., a Delaware corporation

                   Blood Cells, Inc., a Delaware corporation

                   Flavorsome, Ltd., a Delaware corporation

                   Vista, Inc., a Virgin Island corporation


<PAGE>
 
                                                                      EXHIBIT 23

                       CONSENT OF INDEPENDENT ACCOUNTANTS

     We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 (No. 2-90713) of IGI, Inc., the Registration Statement on
Form S-8 and S-3 (No. 33-35047) of IGI, Inc., the Registration Statement on Form
S-8 and S-3 (No. 33-43212) of IGI, Inc. the Registration Statement of IGI, Inc.
on Form S-8 and S-3 (No. 33-47777) of IGI, Inc., the Registration Statement on
Form S-3 (No. 33-54920) of IGI, Inc., the Registration Statement of IGI, Inc. on
Form S-8 (No. 33-58479) of IGI, Inc. the Registration Statement on Form S-8 (No.
33-65249) of IGI, Inc. the Registration Statement on Form S-3 (No. 333-27173) of
IGI, Inc. and the Registration Statement of IGI, Inc on Form S-8 (No. 333-28183)
of IGI, Inc. of our report, dated July 31, 1998, except as to Note 8, which is
as of August 19, 1998, appearing on page 33 of this Form 10-K. We also consent
to the incorporation by reference of our report on the Financial Statement
Schedules, which appears on page 55 of this Form 10-K.

PricewaterhouseCoopers llp

30 South 17th Street
Philadelphia, Pennsylvania
July 31, 1998



<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
       
<MULTIPLIER>           1,000
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           1,196
<SECURITIES>                                         0
<RECEIVABLES>                                    7,754
<ALLOWANCES>                                       903
<INVENTORY>                                      9,816
<CURRENT-ASSETS>                                19,410
<PP&E>                                          19,884
<DEPRECIATION>                                  10,048
<TOTAL-ASSETS>                                  34,044
<CURRENT-LIABILITIES>                           23,879
<BONDS>                                              0
                                0
                                          0
<COMMON>                                            96
<OTHER-SE>                                           0
<TOTAL-LIABILITY-AND-EQUITY>                    34,044
<SALES>                                         34,293
<TOTAL-REVENUES>                                34,293
<CGS>                                           17,834
<TOTAL-COSTS>                                   16,622
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,853
<INCOME-PRETAX>                                (2,027)
<INCOME-TAX>                                     (574)
<INCOME-CONTINUING>                            (1,453)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,453)
<EPS-PRIMARY>                                    (.15)
<EPS-DILUTED>                                    (.15)
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<RESTATED>
<MULTIPLIER>      1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                    YEAR
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1995
<PERIOD-END>                               DEC-31-1996             DEC-31-1995
<CASH>                                             317                     169
<SECURITIES>                                         0                       0
<RECEIVABLES>                                    8,603                   8,331
<ALLOWANCES>                                       238                     306
<INVENTORY>                                      9,067                   9,144
<CURRENT-ASSETS>                                19,966                  18,298
<PP&E>                                          19,248                  18,335
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