SHEFFIELD PHARMACEUTICALS INC
10-K, 1998-04-15
PHARMACEUTICAL PREPARATIONS
Previous: EXSTAR FINANCIAL CORP, 10-K, 1998-04-15
Next: DISCOVER CARD MASTER TRUST I, 8-K, 1998-04-15




                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549



                                    FORM 10-K

                        FOR ANNUAL AND TRANSITION REPORTS
                     PURSUANT TO SECTIONS 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

- --------------------------------------------------------------------------------


(Mark One)

/X/     ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
        ACT OF 1934


For the fiscal year ended DECEMBER 31, 1997

/ /     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
        EXCHANGE ACT OF 1934


For the transition period from          to
                               --------    ---------

                         Commission file number 1-12584

                         SHEFFIELD PHARMACEUTICALS, INC.
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified in its Charter)

          DELAWARE                                              13-3808303
- ----------------------------                              ----------------------
(State or Other Jurisdiction                                   (IRS Employer
 of Incorporation or Organi-                              Identification Number)
 zation)

425 Woodsmill Road, St. Louis, Missouri                            63017
- --------------------------------------------------------------------------------
(Address of Principal Executive Offices)                          (Zip Code)

Issuer's Telephone Number, Including Area Code:               (314) 579-9899
                                                              --------------

Securities registered pursuant to Section 12(b) of the Exchange Act:


          TITLE OF EACH CLASS                           Name of Each Exchange
          -------------------                           ON WHICH REGISTERED
                                                        --------------------
      Common Stock, $.01 par value                     American Stock Exchange




Securities registered pursuant to Section 12(g) of the Exchange 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 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 /X/  No / /

                                                        (CONTINUED ON NEXT PAGE)
- --------------------------------------------------------------------------------


<PAGE>






/ /               Indicate by check mark if disclosure  of delinquent  filers 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 at March 31,  1998 of the voting
stock of the Registrant held by non-affiliates  (based upon the closing price of
$0.6875 per share of such stock on the American Stock Exchange on such date) was
approximately $10,197,487.  Solely for the purposes of this calculation,  shares
held by directors and officers of the issuer have been excluded.  Such exclusion
should not be deemed a  determination  or an  admission  by the issuer that such
individuals are, in fact, affiliates of the issuer.

                  Indicate  the  number  of  shares  outstanding  of each of the
registrant's  classes of common equity,  as of the latest  practicable  date: At
March 31, 1998, there were outstanding  15,742,762 shares of the issuer's Common
Stock, $.01 par value.

                       DOCUMENTS INCORPORATED BY REFERENCE

                  Certain   portions  of  the   Registrant's   definitive  proxy
statement to be filed not later than April 30, 1998 pursuant to  Regulation  14A
are  incorporated by reference in Items 10 through 13 of Part III of this Annual
Report on Form 10-K.




                                       -1-

<PAGE>


                                     PART I

ITEM 1.  BUSINESS

GENERAL

         Sheffield  Pharmaceuticals,  Inc. (the  "Company"),  formerly  known as
Sheffield  Medical  Technologies  Inc.,  is an emerging  pharmaceutical  company
developing  and  commercializing  prescription  pharmaceutical  products  to  be
promoted  by a  specialty  pharmaceutical  sales  force.  The  Company is in the
development stage and as such has been principally engaged in the development of
its proprietary drug delivery system, the Premaire(TM)  Metered Solution Inhaler
(the   "Premaire(TM)  MSI  System").   The  Company's  lead  products  are  four
respiratory drugs for the treatment of asthma and chronic obstructive  pulmonary
disease ("COPD"). These drugs will be delivered to the lungs by the Premaire(TM)
MSI System,  the world-wide  marketing  rights to which were  in-licensed by the
Company  from  Siemens AG in March 1997.  In  addition,  the Company is actively
seeking  partners for the development of other  respiratory and  non-respiratory
drugs for  delivery via the  Premaire(TM)  MSI System.  Finally,  the Company is
seeking  to  out-   license  its  rights  in  several   early-stage   biomedical
technologies.

         The  Company   does  not   currently   have  any  sales  or   marketing
capabilities.   It  intends   to  build  or   otherwise   acquire  a   specialty
pharmaceutical  sales  force  in the  United  States,  as well as the  attendant
marketing infrastructure, as its lead products near marketing approval.

         The  Company  was  originally  formed  in 1986 and is  incorporated  in
Delaware.  In 1996, the Company formed a wholly owned Delaware  subsidiary,  Ion
Pharmaceuticals,  Inc.  ("Ion"),  that owns the rights to certain  early-  stage
biomedical technologies. In 1997, the Company acquired all of Camelot Pharmacal,
L.L.C.,  a  Missouri  limited   liability   corporation  that  was  subsequently
liquidated.  Unless the context requires otherwise,  references to the "Company"
herein are references to Sheffield Pharmaceuticals, Inc. and its subsidiaries.

         The  Company's  headquarters  are  located  at  Suite  270,  425  South
Woodsmill Road, St. Louis, Missouri 63017-3441 and its telephone number is (314)
579-9899.

BUSINESS STRATEGY

         The principal  elements of the Company's  business  strategy consist of
the following:  (i) marketing its products directly through the Company's future
specialty sales force; (ii) selectively acquiring,  in-licensing,  co- promoting
or obtaining  currently  marketed  pharmaceutical  products in selected markets;
(iii) focusing on certain chronic diseases, such as asthma,  requiring long-term
therapy in the large,  rapidly growing  concentrated  respiratory  market with a
range of drugs delivered by the Premaire(TM) MSI System,  (as further  described
below); and (iv) contracting for the manufacture and development of its products
with cost  effective,  high quality U.S.  Food and Drug  Administration  ("FDA")
compliant companies.

         The  Company's   management   consists  of   individuals   who  possess
substantial experience in the acquisition,  development and commercialization of
pharmaceutical  products.  Through their  experience  at such  companies as Bock
Pharmacal Company and Fisons plc, members of the Company's  management team have
demonstrated  the  ability  to build and  manage the  operations  of  successful
pharmaceutical companies. This team provides the Company with extensive industry
contacts together with broad and complementary  business and scientific  skills,
which are critical to achieving success in the pharmaceutical industry.

PROJECTS UNDER DEVELOPMENT

PREMAIRE(TM) MSI SYSTEM

         BACKGROUND

         The Company owns the exclusive worldwide rights to the Premaire(TM) MSI
System, a patented, state-of-the- art, multi-dose nebulizer delivery system (the
" Premaire(TM) MSI System") from Siemens AG, the multi-national  engineering and
electronics conglomerate. The system is comprised of a hand-held,  pocket-sized,
ultrasonic nebulizer, and dosator cartridges containing various medications. The
pharmaceutical formulations currently in development by the Company for use with
the  Premaire(TM)  MSI System are for the treatment of asthma and COPD.  Through
the  Premaire(TM)  MSI System and the products under  development for use in the
Premaire(TM) MSI System, the Company plans to be a significant competitor in the
respiratory category by the year 2001. Siemens AG will


                                       -1-

<PAGE>



manufacture and supply the hand-held nebulizer component of the Premaire(TM) MSI
System.  The Company is in the development  phase for commonly used  respiratory
drugs for use with the Premaire(TM) MSI System.

         PULMONARY DRUG DELIVERY MARKET ENVIRONMENT

         The  Premaire(TM)  MSI System  pulmonary drug delivery system for which
the Company holds exclusive worldwide rights has been developed to meet specific
needs within the respiratory  market,  particularly for those patients suffering
from asthma and COPD. In 1995,  audited  industry  sources  indicated there were
approximately  10 million  asthma  patients  and 3 million COPD  patients  under
physician  care in the U.S.  Other  sources  indicate that there are at least 14
million asthma patients being treated by physicians and that the number of newly
diagnosed  patients is growing at a rate of 10% annually.  With the aging of the
population,  it is believed that COPD is growing at a similar rate.  Because the
Company will initially  focus its future  specialty sales force in the U.S., the
following   information  will  focus  on  the  U.S.  market  potential  for  the
Premaire(TM) MSI System. There remains an opportunity to play a significant role
in other markets outside of the U.S., particularly in Europe.

         Today,  three  principal  types of devices  are widely  used in aerosol
administration:  metered dose inhalers (MDIs),  dry powder inhalers (DPIs),  and
nebulizers.

         METERED  DOSE  INHALERS.  Currently,  MDIs are the most  commonly  used
         aerosol delivery system. It is estimated that in the United States, 80%
         of aerosol  drug  delivery is via MDIs,  with the  majority of this use
         coming from adults with asthma and COPD.

         The primary  advantages  of an MDI include its small  size/portability,
         drug delivery time in seconds,  and availability  with most respiratory
         drugs.  Disadvantages include patient coordination issues and efficient
         dose  delivery.  Additionally,  because  the use of  chlorofluorocarbon
         (CFC)  propellants,  traditionally  used in MDIs,  is being  phased out
         according to international  agreement (Montreal Protocol),  alternative
         propellants  and  formulations  are being  developed.  Over  time,  all
         current  MDI users will be  required  to move to a non-CFC MDI or other
         alternative delivery systems.

         DRY POWDER  INHALERS.  DPIs were introduced in the 1960s as single-dose
         inhalers.  In these devices,  the drug is loaded as a unit dose that is
         mechanically  released as a powder for inhalation prior to each use. To
         date,  these systems have been the primary form of DPI available in the
         United States,  and account for  approximately  1% of the total aerosol
         delivery market.

         The  inconvenience  of the single dose DPI has been overcome outside of
         the U.S. with the development  and  introduction of multidose DPIs that
         can  deliver up to 200 doses of  medication.  However,  like the single
         dose systems,  they are likely to be inspiratory  flow rate  dependent,
         that is, the amount of drug delivered to the lung is dependent upon the
         patient's ability to inhale.

         Two  of  the  most  significant   advantages  of  DPIs  include  1)  no
         hand-breath  coordination is required as with MDIs; and 2) they contain
         no CFCs. However, most require a high inspiratory flow rate that can be
         problematic in younger  patients or in patients with  compromised  lung
         function.  In addition,  they often present difficulties for those with
         manual disabilities (e.g.,  arthritis) or limited vision and, depending
         upon the powder  load  delivered,  may  induce  acute  bronchospasm  in
         sensitive individuals.

         NEBULIZERS.  The  third  widely-used  aerosol  delivery  system  is the
         nebulizer.  Jet  nebulizers,  which are by far the most commonly  used,
         work on a stream of compressed  air or oxygen that is forced  through a
         narrow  tube  which  lies just  above the  surface  of the liquid to be
         nebulized.  It takes  approximately  10 to 15 minutes to nebulize  this
         amount of  liquid.  During  nebulization  only about 10% of the drug is
         delivered to the lungs; about 80% gets trapped in the reservoir, tubing
         and mask; the rest is exhaled.

         Nebulizers can be used for a wide range of patients, but are especially
         useful for those old and young patients who cannot manage other inhaler
         devices,  and for whom  inhalation  via tidal  breathing is  preferred.
         Nebulizers  also play a key role in emergency  room and intensive  care
         treatment  for  patients  with  acute   bronchospasm.   However,   most
         nebulizers are bulky units that are time consuming, have a high initial
         cost and can be extremely noisy during operation.


                                       -2-

<PAGE>


         PROJECTED MARKET ENVIRONMENT

         The Company  believes that the U.S.  respiratory  market will exceed $4
billion by the year 2001. Many  developments  are taking place in the technology
associated with pulmonary drug delivery. Spurred on by the Montreal Protocol and
the ban on CFC  propellants,  much of the work in research and  development  has
focused on alternative  propellants  and dry powder  systems.  It is anticipated
that there will be a minimum of 11 and a maximum of 35 approved CFC-free inhaled
products on the market in the United States by 2001.  Many of these are expected
to be MDIs with new propellants or DPIs. However, few of these second generation
delivery  systems are expected to overcome  the  disadvantages  associated  with
their earlier counterparts.

         There  are a number  of new  devices  in  development  that  have  been
designed  specifically  to  address  unmet  patient  needs.  Among  these is the
Company's patented metered solution inhaler,  the Premaire(TM) MSI System, which
is  designed  to combine  the  therapeutic  benefits  of  nebulization  with the
convenience of pressurized metered dose inhalers.

         DESCRIPTION OF THE TECHNOLOGY

         The Premaire(TM) MSI System is a metered solution inhaler  comprised of
two main  components:  (i) a reusable,  pocket-size  inhaler unit  developed and
manufactured  for the Company by Siemens AG, a global leader in electronics  and
technology,  and (ii) interchangeable drug cartridges called dosators. The basic
technology of the system involves the rapid  nebulization of therapeutic  agents
for the respiratory tract using ultrasonic energy.  This produces a concentrated
cloud of medication  delivered through the mouthpiece over a two to three second
period for  inhalation.  Key components of the technology  include  rechargeable
batteries, a battery-operated motor, ultrasonic horn, drug cartridge chamber and
mouthpiece.

         The pocket-size  Premaire(TM) MSI System accommodates a variety of drug
dosators  to  allow  for  administration  of a  range  of  drugs  in  a  single,
simple-to-use,  environmentally-friendly  delivery system. Each dosator contains
120 actuations containing approximately a one to two month supply of drug.

         The  Premaire(TM)  MSI System is  designed  to be patient  friendly.  A
patient simply selects the appropriate  color-coded drug cartridge and places it
into the chamber of the inhaler  unit.  Pressing the "on" button  activates  the
small electrical motor that transports a precise dose of drug from the cartridge
chamber to the ultrasonic horn which transforms the solution into an aerosolized
cloud. The patient's  inspiration  carries a cloud of medication directly to the
lungs where it is needed.  The Company expects the delivered dose to be accurate
and consistent for the following  reasons:  (i) the  Premaire(TM)  MSI System is
designed to be inspiratory flow rate independent,  that is, delivery of the drug
does not depend upon the patient's  ability to inhale  forcefully,  and (ii) the
Premaire(TM)  MSI System does not require a high level of  coordination  between
inspiration  and  actuation  of the device.  The  patient's  breath  carries the
medication directly to the lungs, minimizing the amount of drug deposited in the
mouth and throat.


         POTENTIAL ADVANTAGES OF THE PREMAIRE(TM)  MSI SYSTEM.

The Company believes that the  Premaire(TM)  MSI System may provide  significant
advantages  over other drug  delivery  systems.  It is  particularly  suited for
younger  and  older  asthma  patients,  and for  older  COPD  patients  who have
difficulty   using  MDIs  and   currently   have  to  depend  on  larger,   more
time-consuming  table-top  nebulizers for delivery of their  medications.  These
potential advantages include:


                  ACCURACY. The superior engineering and patient-friendly design
         of the  Premaire(TM)  MSI System is intended to provide minimal dose to
         dose variability. Patients can therefore expect to consistently receive
         the correct therapeutic dose.


                  ENHANCED  PATIENT   COMPLIANCE.   The  pocket-size,   portable
         Premaire(TM)  MSI System unit is  designed  to combine the  therapeutic
         benefits of nebulization  with the  convenience of pressurized  metered
         dose inhalers.  Drug delivery time is measured in seconds,  as compared
         to 10 - 15 minutes or more for the typical nebulizer.  Plus, the device
         is easy to operate and requires minimal  coordination between actuation
         and  inhalation  for  proper  drug  delivery.  All  of  these  features
         contribute  to  improved  patient  compliance   resulting  from  proper
         administration of their respiratory medication.


                                       -3-

<PAGE>




                  INSPIRATORY  FLOW  RATE  INDEPENDENCE.  The  Premaire(TM)  MSI
         System is designed to achieve a  consistent  and  significant  level of
         drug deposition over a broad range of inspiratory  flow rates.  This is
         especially   important  in  younger   patients  or  in  patients   with
         compromised lung function (e.g., during an asthma attack).


                  VERSATILITY. Many asthma and COPD patients are taking multiple
         inhalation  medications.   The  Premaire(TM)  MSI  System  accommodates
         interchangeable  drug  cartridges,   or  dosators,  to  allow  for  the
         administration of a broad range of frequently used respiratory drugs in
         a single,  simple to use delivery  system.  The system  utilizes  early
         warning  mechanism to signal when the batteries need recharging.  These
         user-friendly features result in a simplified dosing procedure for both
         patients and their caregivers.


                  ENVIRONMENTALLY-FRIENDLY.   CFCs  are   associated   with  the
         reduction  of the Earth's  ozone  layer,  and are subject to  worldwide
         regulations  aimed at eliminating  their  production and use within the
         decade. The Premaire(TM) MSI System does not use CFCs or any other type
         of ozone depleting propellant.


                  ECONOMICAL.  The  Premaire(TM)  MSI System offers  significant
         value to the patient  because it allows a single device to be used with
         a   complete   family   of   respiratory   medications   available   in
         cost-effective  interchangeable cartridges. The inhaler unit itself has
         a life of three years for a patient who uses it several times a day.

         THE PREMAIRE(TM)  DEVELOPMENT STRATEGY

         The Company is  implementing  a two-tier  development  strategy for the
         Premaire(TM) MSI System as described below:

                  DEVELOP   AND   COMMERCIALIZE   FOUR   NON-PATENTED    INHALED
         RESPIRATORY MEDICATIONS.  The Company, in collaboration with Chesapeake
         Biological  Laboratories,  is  currently  developing  four  widely used
         respiratory  drugs  for  use  in the  Premaire(TM)  MSI  System.  These
         include: albuterol sulfate, ipratropium bromide, cromolyn sodium and an
         inhaled bronchial steroid.

                  IDENTIFY  CORPORATE  PARTNERS.  The Company  plans to identify
         potential  foreign  marketing  partner or partners for the four initial
         compounds in the Premaire(TM)  MSI System.  The Company plans to market
         albuterol,  ipratropium,  cromolyn  and an inhaled  steroid in the U.S.
         through  the use of a planned  specialty  sales  force.  The Company is
         currently in the process of identifying  potential  marketing  partners
         outside of the U.S. to cover major foreign markets.

                  The Company plans to sublicense  the  Premaire(TM)  MSI System
         technology to  pharmaceutical  companies  for use with new  respiratory
         drugs/non-respiratory   drugs.   The  Company  is  actively   exploring
         out-licensing  opportunities for developing new respiratory medications
         for the Premaire(TM) MSI System, as well as exploring  expansion of the
         Premaire(TM) MSI for the pulmonary delivery of drugs to the bloodstream
         (e.g.,  insulin,  morphine).  Out-licensing,  manufacturing  and supply
         agreements   with  such  companies   would  provide  the  Company  with
         additional revenue sources.

EARLY STAGE RESEARCH PROJECTS

         As part of the  Company's  focus  on  later  stage  opportunities,  the
Company is seeking to out-license its portfolio of early stage medical  research
projects  to  companies   that  are  committed  to  early  stage   biotechnology
opportunities.  This portfolio  consists of  opportunities  within the Company's
wholly-owned subsidiary,  Ion, which are focused on development of new compounds
for the  treatment of cancer and other  diseases.  In addition,  the Company has
rights  to  potential  products  in the  areas of human  immunodeficiency  virus
("HIV"),  Acquired Immune  Deficiency  Syndrome  ("AIDS") and prostrate  cancer.
These early stage  technologies do not fit the emerging  pharmaceutical  company
strategy. Consequently, the Company plans to outlicense these technologies while
maintaining  an interest in the  technologies'  promise  without  incurring  the
development costs associated with early stage research and development.


                                       -4-

<PAGE>


         RBC-CD4 ELECTROINSERTION TECHNOLOGY

         The  Company  is the  worldwide  licensee  of certain  technology  (the
"RBC-CD4  Electroinsertion  Technology")  relating  to the  electroinsertion  of
full-length CD4 protein into red blood cells for use as a potential  therapeutic
in the treatment of HIV that leads to AIDS. The electroinsertion process inserts
CD4, the protein  that serves as the binding  site of the HIV virus,  into a red
blood cell. This altered cell complex acts as a decoy and is designed to cleanse
the blood of infection by binding to and removing the HIV virus from circulation
before it can infect other cells in the human immune system.

         The Company has signed an option  agreement  with a private  investment
group that had a prior interest in the RBC-CD4 Electroinsertion  Technology,  to
sell the Company's rights to this HIV/AIDS  technologies.  As consideration  for
the option, the third party will fund an additional study related to the RBC-CD4
Electroinsertion  Technology.  In addition,  the Company will retain a one-third
interest in all future commercial and sublicensing results.

         LIPOSOME-CD4 TECHNOLOGY


         The  Company  is the  worldwide  licensee  of certain  technology  (the
"Liposome-CD4  Technology")  relating to the  incorporation of CD4 antigens into
liposome  bilayers  and  their  use  as a  potential  therapeutic  agent  in the
treatment of HIV/AIDS.  Liposome-CD4 Technology has been targeted by the Company
at infections in the human lymphatic system, a major reservoir for infection not
directly reached by blood circulation.

         The  Company  entered  into a  sublicense  agreement  in July 1996 with
SEQUUS  Pharmaceuticals,  Inc.  ("SEQUUS")  for the  continued  development  and
commercialization of the Liposome-CD4 Technology. Under development by SEQUUS, a
clinical formulation prototype has been chosen, a scaleable process to formulate
Liposome-CD4 has been developed, CD4 from various constructs are being produced,
and additional feasibility studies are currently underway.

         HIV/AIDS VACCINE


         The  Company  holds  an  exclusive  worldwide  license  to a  potential
HIV/AIDS vaccine (the "HIV/AIDS  Vaccine") and diagnostic test under development
at the French Institute of Health and Medical Research ("INSERM"). This research
project is headed by Professor Jean-Claude Chermann, one of the original Pasteur
Institute  discoverers  of the HIV  virus.  The  vaccine  concept  developed  by
Professor  Chermann  targets an antibody binding site or "epitope" which is on a
region of the beta-2-microglobulin  that is normally associated with the Class I
major  histocompatability  molecule found on the surface of most human cells. It
is believed that  inducing an antibody to this epitope could either  prevent the
progression  of  existing  HIV  infection  or  entirely  prevent   infection  of
uninfected  individuals.  The Company  believes  this  approach may also protect
against both  blood-born and sexual  transmission of HIV. The Company's goal has
been to develop an oral formulation that would make the vaccine potentially less
costly and easier to distribute to a broad population.
         The Company is seeking a partner for this technology .

         UGIF TECHNOLOGY - PROSTATE CANCER


         The Company holds an exclusive worldwide license to a growth regulatory
factor,  termed Urogenital Sinus Derived Growth Inhibitory Factor ("UGIF/ps20"),
which  could  serve  as  a  potential   prostate   cancer   therapy  (the  "UGIF
Technology").  Identification  of UGIF as a growth inhibitory factor for certain
prostate  cells was based upon  laboratory  studies  conducted at Baylor Medical
College.  This  work  identifies  the  potential  of UGIF for the  treatment  of
prostate  cancer and  potentially  other diseases of the prostate by elucidating
mechanisms  involved  in the control of growth in the  prostate.  The Company is
seeking a partner for this technology.


                                       -5-

<PAGE>


         ION PHARMACEUTICALS, INC. TECHNOLOGIES


         The Company, through its wholly-owned subsidiary,  Ion, holds exclusive
worldwide  license rights to certain  compounds and their uses for the treatment
of conditions characterized by unregulated cell proliferation or cell growth and
sickle  cell  anemia.   Ion's   intellectual   property  portfolio  consists  of
clotrimazole  ("CLT"),  its metabolites and a number of proprietary new chemical
entities   co-owned  by  Ion  termed  the   Trifens(TM).   Such  compounds  have
demonstrated  promise  in  therapeutic  applications  for  treating  a number of
conditions  characterized  by  unregulated  cell  proliferation,  such as cancer
(including   multiple   drug   resistance   cases)  and  certain   proliferative
dermatological conditions, as well as sickle cell anemia and secretory diarrhea.
Ion acquired the Company's rights in the anti- proliferative technologies at the
time of Ion's  organization  as a  wholly-owned  subsidiary  of the  Company  in
January 1996.

         The Company entered into a license  arrangement with Imutec Pharma Inc.
in November 1997. The  arrangement  licenses rights to a series of compounds for
the  treatment  of cancer,  Kaposi's  sarcoma and actinic  keratosis  to a newly
formed company, NuChem Pharmaceuticals,  Inc. ("NuChem") for which Imutec Pharma
will provide  funding and  management of the  development  program.  The Company
holds a 20% equity interest in NuChem. The Company is currently participating in
discussions  with certain third parties  regarding the possibility of partnering
or licensing the use of clotrimazole and the Trifens(TM) in the fields of sickle
cell anemia and gastrointestinal disorders.

GOVERNMENT REGULATION

         The Company's research and development activities and, ultimately,  the
production and marketing of its licensed products,  are subject to comprehensive
regulation by numerous  governmental  authorities in the United States and other
countries. Among the applicable regulations in the United States, pharmaceutical
products are subject to the Federal Food, Drug & Cosmetic Act, the Public Health
Services Act,  other  federal  statutes and  regulations,  and certain state and
local  regulations.  These  regulations  and  statutes  govern the  development,
testing,  formulation,  manufacture,  labeling, storage, record keeping, quality
control,  advertising,  promotion,  sale,  distribution  and  approval  of  such
pharmaceutical  products.  Failure to comply with  applicable  requirements  can
result in fines,  recall or seizure of products,  total or partial suspension of
production,  refusal by the  government to approve  marketing of the product and
criminal prosecution.

         A new drug may not be legally marketed for commercial use in the United
States without Food and Drug Administration  (the "FDA") approval.  In addition,
upon  approval,  a drug  may  only  be  marketed  for  the  indications,  in the
formulations  and at the dosage levels approved by the FDA. The FDA also has the
authority to withdraw  approval of drugs in accordance  with applicable laws and
regulations.  Analogous foreign regulators impose similar approval  requirements
relating to commercial marketing of a drug in their respective countries and may
impose similar restrictions and limitations after approval.

         In order to obtain FDA approval of a new  product,  the Company and its
strategic partners must submit proof of safety, efficacy,  purity and stability,
and the Company must demonstrate  validation of its manufacturing  process.  The
testing and application  process is expensive and time  consuming,  often taking
several years to complete. There is no assurance that the FDA will act favorably
or quickly in reviewing such  applications.  With respect to patented  products,
processes or technologies, delays imposed or caused by the governmental approval
process may materially  reduce the period during which the Company will have the
exclusive  right to exploit them.  Such delays could also affect the  commercial
advantages derived from proprietary processes.

         As part of the approval  process,  the FDA reviews the Drug Master File
(the "DMF") for a description of product chemistry and characteristics, detailed
operational  procedures for product  production,  quality  control,  process and
methods validation,  and quality assurance.  As process development continues to
mature, updates and modifications of the DMF are submitted.

         The FDA approval process for a  pharmaceutical  product includes review
of (i)  chemistry  and  formulations,  (ii)  preclinical  laboratory  and animal
studies, (iii) initial Investigational New Drug Application (the "IND") clinical
studies to define safety and dose parameters,  (iv) well-controlled IND clinical
trials to demonstrate  product  efficacy and safety,  followed by submission and
FDA approval of a New Drug Application (the "NDA").  Preclinical studies involve
laboratory  evaluation of the product and animal studies to assess  activity and
safety of the product.  Products must be  formulated  in accordance  with United
States Good Manufacturing  Procedures ("GMP") requirements and preclinical tests
must be conducted by laboratories that comply with FDA regulations governing the
testing of drugs


                                       -6-

<PAGE>



in animals.  The results of the  preclinical  tests are  submitted to the FDA as
part of the IND  application  and are  reviewed by the FDA prior to granting the
sponsor permission to conduct clinical studies in human subjects. Unless the FDA
objects to an IND  application,  the application  will become  effective 30 days
following its receipt by the FDA. There can be no certainty  that  submission of
an IND will result in FDA authorization to commence clinical studies.

         Human  clinical  trials are  typically  conducted  in three  sequential
phases with some amount of overlap  allowed.  Phase I trials normally consist of
testing the product in a small  number of patient  volunteers  for  establishing
safety and pharmacokinetics using single and multiple dosing regiments. In Phase
II, the continued  safety and initial efficacy of the product are evaluated in a
somewhat larger patient population, and appropriate dosage amounts and treatment
intervals are  determined.  Phase III trials  typically  involve more definitive
testing of the appropriate dose for safety and clinical  efficacy in an expanded
patient  population at multiple  clinical testing  centers.  A clinical plan, or
"protocol," accompanied by the approval of the institution  participating in the
trials,  must be submitted  to the FDA prior to  commencement  of each  clinical
trial phase.  Each  clinical  study must be  conducted  under the auspices of an
Institutional  Review  Board  (the  "IRB")  at the  institution  performing  the
clinical  study.  The IRB is charged with  protecting  the safety of patients in
trials and may require changes in a protocol, and there can be no assurance that
an IRB will permit any given study to be  initiated or  completed.  In addition,
the FDA may order the temporary or permanent  discontinuation of clinical trials
at any time. The Company must rely on other persons and  institutions to conduct
these clinical studies.

         All  the  results  of  the  preclinical  and  clinical   studies  on  a
pharmaceutical  product  are  submitted  to the  FDA in the  form  of an NDA for
approval to commence commercial  distribution.  The information contained in the
DMF is also incorporated into the NDA.  Submission of an NDA does not assure FDA
approval for marketing.  The application review process often required 12 months
to complete.  However,  the process may take substantially longer if the FDA has
questions  or concerns  about a product or studies  regarding  the  product.  In
general,   the  FDA  requires  two  adequate  and  controlled  clinical  studies
demonstrating efficacy with sufficient levels of statistical assurance. However,
additional  support  may be  required.  The  FDA  also  may  request  additional
information relating to safety or efficacy,  such as long-term toxicity studies.
In  responding  to an  NDA,  the  FDA  may  grant  marketing  approval,  require
additional  testing and/or  information,  or deny the application.  Accordingly,
there can be no assurance about any specific time frame for approval, if any, of
products by the FDA or foreign regulatory  agencies.  Continued  compliance with
all  FDA  requirements  and  conditions  relative  to an  approved  application,
including   product   specifications,   manufacturing   process,   labeling  and
promotional  material,  and  record  keeping  and  reporting  requirements,   is
necessary  throughout  the life of the product.  In addition,  failure to comply
with FDA  requirements,  the occurrence of unanticipated  adverse effects during
commercial marketing or the result of future studies, could lead to the need for
product recall or other FDA-initiated actions that could delay further marketing
until the products or processes are brought into compliance.

         The facilities of each  pharmaceutical  manufacturer must be registered
with and  approved  by the FDA as  compliant  with GMP.  Continued  registration
requires compliance with standards for GMP. In complying with GMP, manufacturers
must continue to expend time, money and effort in production, record keeping and
quality control to ensure technical compliance. In addition,  manufacturers must
comply  with the  United  States  Department  of Health and Human  Services  and
similar  state  and  local  regulatory  authorities  if they  handle  controlled
substances,  and they must be registered  with the United  States  Environmental
Protection  Agency and similar state and local  regulatory  authorities  if they
generate toxic or dangerous waste streams. Other regulatory agencies such as the
Occupational  Safety  and Health  Administration  also  monitor a  manufacturing
facility  for  compliance.   Each  of  these  organizations   conducts  periodic
establishment  inspections to confirm continued compliance with its regulations.
Failure to comply with any of these regulations  could mean fines,  interruption
of production and even criminal prosecution.

         For foreign markets, a pharmaceutical  company is subject to regulatory
requirements,  review procedures and product approvals which, generally,  may be
as extensive, if not more extensive, as those in the United States. Although the
technical  descriptions  of  the  clinical  trials  are  different,  the  trials
themselves  are  often  substantially  the same as those in the  United  States.
Approval of a product by regulatory  authorities  of foreign  countries  must be
obtained prior to commencing  commercial  product  marketing in those countries,
regardless of whether FDA approval has been obtained. The time and cost required
to obtain  market  approvals in foreign  countries may be longer or shorter than
required for FDA approval and may be subject to delay. There can be no assurance
that  regulatory  authorities  of foreign  countries  will grant  approval.  The
Company has no experience in manufacturing or marketing in foreign countries nor
in matters such as currency regulations,  import-export  controls or other trade
laws.


                                       -7-

<PAGE>


PATENTS AND PROPRIETARY RIGHTS

         PREMAIRE(TM)  MSI SYSTEM PATENTS

         Under its agreement with Siemens AG for the  technology  underlying the
Premaire(TM)  MSI System,  the Company is responsible for jointly  financing and
prosecuting  the U.S.  patent  applications  for the  benefit  of the owners and
licensors of this  technology.  To date,  one U.S.  patent has issued,  two U.S.
patent applications are pending,  and two international  patent applications are
pending.

         RBC-CD4 ELECTROINSERTION TECHNOLOGY PATENTS

         Under  its  license   agreement   for  the   RBC-CD4   Electroinsertion
Technology,  the Company is  responsible  for financing and  prosecuting  patent
applications for the benefit of the owners and licensor of this  technology.  To
date,  two U.S.  patent have issued,  nine  foreign  patents have issued and two
foreign patent applications are pending.

         LIPOSOME-CD4 TECHNOLOGY PATENTS

         Under  its  license  agreement  for the  Liposome-CD4  Technology,  the
Company is responsible for financing and prosecuting patent applications for the
benefit of the owners and  licensors  of this  technology.  Currently,  one U.S.
patent  application is pending,  one foreign  patent  application is pending and
five foreign patent applications have issued.

         HIV/AIDS VACCINE PATENTS

         Under its license  agreements for the HIV/AIDS Vaccine,  the Company is
responsible for financing and jointly  prosecuting  patent  applications for the
benefit  of  the  licensor  of  this  technology.  Currently,  one  U.S.  patent
application  is  pending,  and  one  international  patent  application  and one
European patent application has issued.

         UGIF TECHNOLOGY PATENTS

         Under its license  agreement  for the UGIF  Technology,  the Company is
responsible for financing and prosecuting patent applications for the benefit of
the licensor of this technology.  Currently,  two U.S. patents have issued,  one
U.S. patent  application is pending,  one  international  patent  application is
pending and one Canadian patent has issued.

         ION TECHNOLOGY PATENTS

         Under  its   license   agreement   for  the   anti-proliferative/growth
regulatory  technology,  the Company is  responsible  for  financing and jointly
prosecuting  patent   applications  for  the  benefit  of  the  owners  of  this
technology. To date, six U.S. patents have issued, five U.S. patent applications
are pending and eight foreign patent applications are pending.

         Under its license agreement for the sickle cell technology, the Company
is responsible for financing and jointly prosecuting patent applications for the
benefit of the owners of this technology. To date, two U.S. patents have issued,
four U.S. patent  applications are pending and one international  application is
pending.

COMPETITION

         The Company will compete with approximately 25 other companies involved
in developing  and selling  respiratory  products for the U.S.  market.  Most of
these  companies  possess  financial and marketing  resources and  developmental
capabilities  substantially  greater than the  Company.  Some of the products in
development  by  other  companies  may be  demonstrated  to be  superior  to the
Company's current or future products.  Furthermore,  the pharmaceutical industry
is  characterized  by rapid  technological  change and  competitors may complete
development  and  reach the  market  place  prior to the  Company.  The  Company
believes that competition in the respiratory category will be based upon several
factors,  including product efficacy,  safety,  reliability,  availability,  and
price, among others.



                                       -8-

<PAGE>



RECENT BUSINESS DEVELOPMENTS

         ZAMBON OPTION AGREEMENT


         In April,  1998, the Company entered into an option agreement to form a
strategic  arrangement  with Zambon Group SpA of Milan,  Italy for the worldwide
development and commercialization of drugs to treat respiratory disease with the
Company's  proprietary  Metered  Solution  Inhaler ("MSI") system.  Terms of the
contemplated  agreement  will  include  an  equity  investment  by Zambon in the
Company,  funding to develop four respiratory  compounds for delivery in the MSI
system,  royalties,   milestone  payments,  and  retention  by  the  Company  of
co-promotion  rights for the respiratory drugs in the United States. The Company
will continue to retain all rights to  non-respiratory  disease  applications of
the MSI system.

         The option  agreement  serves the basis  upon  which the  parties  will
negotiate a definitive agreement.  Zambon is making a $650,000 equity investment
in the Company in connection with the signing of the option agreement.

         CONVERTIBLE PREFERRED STOCK OFFERING

         The Company completed a $1,250,000 6% redeemable  convertible preferred
stock  offering with an investor group in April,  1998.  Under the terms of this
offering, the preferred stock must be redeemed at the time the Company concludes
a definitive sub-license agreement on the MSI system or other financing.

         With  proceeds  from this  transaction,  the  Company  is making the DM
2,000,000 (approximately $1,100,000) payment to Siemens A.G. that was originally
due in January 1998 under the terms of the MSI license agreement.



                                       -9-

<PAGE>



EMPLOYEES

         As of March 31, 1998, the Company employed 9 persons,  five of whom are
executive officers.

CERTAIN RISK FACTORS THAT MAY AFFECT  FUTURE  RESULTS,  FINANCIAL  CONDITION AND
MARKET PRICE OF SECURITIES

         DEVELOPMENT STAGE COMPANY;  HISTORY OF OPERATING LOSSES AND ACCUMULATED
         DEFICIT; GOING CONCERN OPINION

         The  Company  is  in  the  development  stage.  The  Company  has  been
principally engaged to date in research,  development and licensing efforts, and
has experienced  significant operating losses. The Company experienced operating
losses of $9,489,139 and $7,008,889 for the fiscal years ended December 31, 1997
and 1996 and, as of December 31, 1997, the Company had an accumulated deficit of
$36,077,790.  The independent  auditors' report dated February 13, 1998,  except
for  Note  11 as to  which  the  date  is  April  15,  1998,  on  the  Company's
consolidated  financial  statements  stated that the Company has generated  only
minimal operating revenue,  has incurred recurring operating losses and requires
additional  capital and that these conditions raise  substantial doubt about its
ability  to  continue  as a going  concern.  The  Company  expects  that it will
continue to have a high level of operating expenses and will be required to make
significant  up-front  expenditures in connection  with its product  development
activities.   As  a  result,  the  Company  anticipates  significant  additional
operating  losses for 1998 and that such losses will continue  thereafter  until
such time,  if ever, as the Company is able to generate  sufficient  revenues to
sustain its operations.

         The Company's ability to achieve profitable  operations is dependent in
large part on regulatory  approvals of its  products.  There can be no assurance
that the Company will ever achieve such approvals or profitable operations.

         SIGNIFICANT LIQUIDITY RESTRAINTS

         The Company's  cash available for funding its operations as of December
31,  1997 was  $393,608.  As of such date,  the  Company  had trade  payables of
$887,782 and current research  obligations of $470,768.  In addition,  committed
and/or  anticipated  funding of research and development after December 31, 1997
is  estimated  at  approximately  $17,500,000.  The Company  will be required to
obtain  additional funds for its business  through  operations or equity or debt
financings,  collaborative  arrangements  with corporate  partners or from other
resources.  No assurance can be given that these funds will be available for the
Company to finance its  development on acceptable  terms, if at all. If adequate
funds are not available from  operations or additional  sources of funding,  the
Company's business will suffer a material adverse effect.

         NEED FOR  ADDITIONAL  FINANCING;  UNCERTAINTY  OF OBTAINING  ADDITIONAL
         FUNDING

         The  Company's   operations  to  date  have  consumed  substantial  and
increasing  amounts of cash. The negative cash flow from  operations is expected
to continue and to accelerate in the foreseeable  future. The development of the
Company's  technology  and  proposed  products  will  require  a  commitment  of
substantial funds to conduct costly and time-consuming research, preclinical and
clinical testing, and to bring any such products to market. The Company's future
capital  requirements will depend on many factors,  including continued progress
in out-licensing  the early stage technology and developing the Premaire(TM) MSI
System,  the  ability of the Company to  establish  and  maintain  collaborative
arrangements  with  others  and to comply  with the terms  thereof,  receipt  of
payments due from partners under research and development  agreements,  progress
with preclinical and clinical  trials,  the time and costs involved in obtaining
regulatory  approvals,  the cost  involved in  preparing,  filing,  prosecuting,
maintaining  and enforcing  patent claims,  the need to acquire  licenses to new
technology and the status of competitive products.

         The Company needs to raise substantial  additional  capital to fund its
operations.  The  Company  intends  to  seek  such  additional  funding  through
collaborative   or   partnering   arrangements,   the   extension   of  existing
arrangements,  or through public or private equity or debt financings. There can
be no assurance that additional  financing will be available on acceptable terms
or at all. If additional funds are raised by issuing equity securities,  further
dilution to shareholders  may result.  If adequate funds are not available,  the
Company may be required to delay,  reduce the scope of, or eliminate one or more
of its research or  development  programs or obtain funds  through  arrangements
with collaborative partners or others that may require the Company to relinquish
rights to certain of its technologies,  product  candidates or products that the
Company would otherwise seek to develop or commercialize.  If adequate funds are
not available from  operations or additional  sources of funding,  the Company's
business will suffer a material adverse effect.


                                      -10-

<PAGE>


         NO COMMERCIALIZATION OF PRODUCTS TO DATE

         The  Company has not yet begun to  generate  revenues  from the sale of
products.   The   Company's   products  will  require   significant   additional
development,  clinical  testing and investment prior to  commercialization.  The
Company does not expect  regulatory  approval for commercial sales of any of its
products in the immediate  future.  There can be no assurance that such products
will be  successfully  developed,  proven to be safe and efficacious in clinical
trials, able to meet applicable  regulatory  standards,  able to obtain required
regulatory  approvals,  or produced in commercial quantities at reasonable costs
or be successfully commercialized and marketed.

         ROYALTY PAYMENT OBLIGATIONS

         The owners and  licensors  of the  technology  rights  acquired  by the
Company  are  entitled  to receive a certain  percentage  of all  royalties  and
payments in lieu of royalties received by the Company from commercialization, if
any, of products in respect of which the Company holds licenses. Accordingly, in
addition to its substantial investment in product development,  the Company will
be required to make  substantial  payments to others in connection with revenues
derived from commercialization of products, if any, developed under licenses the
Company holds. Consequently, the Company will not receive the full amount of any
revenues that may be derived from  commercialization of products to fund ongoing
operations.

         POTENTIAL LOSS OF RIGHTS UPON DEFAULT

         Under the terms of existing  agreements,  the Company is  obligated  to
make certain  payments to its licensors.  In the event that the Company defaults
on the  payment  of an  installment  under  the terms of an  existing  licensing
agreement,  its rights  thereunder  could be forfeited.  As a  consequence,  the
Company could lose all rights under a license  agreement to the related licensed
technology,  notwithstanding  the total  investment made through the date of the
default.  There can be no assurance that unforeseen obligations or contingencies
will not deplete the Company's financial resources and, accordingly,  sufficient
resources may not be available to fulfill the Company's commitments.


         In this regard, in January, 1998 a payment of DM 2.0 million was due to
Siemens AG under the terms of the  agreement  under which the  Company  hold the
world-wide marketing rights to the Premaire(TM) MSI System. This payment was not
made until April 15, 1998.

         RAPID TECHNOLOGICAL CHANGE; COMPETITION

         The  medical  field  is  subject  to  rapid  technological  change  and
innovation.  Pharmaceutical and biomedical  research and product development are
rapidly  evolving  fields in which  developments  are  expected to continue at a
rapid pace.  Reports of progress and potential  breakthroughs are occurring with
increasing  frequency.  There can be no  assurance  that the Company will have a
competitive  advantage in its fields of technology or in any of the other fields
in which the Company may concentrate its efforts.

         The  Company's  success  will  depend  upon its  ability to develop and
maintain   a   competitive   position   in   the   research,   development   and
commercialization   of  products  and   technologies  in  its  areas  of  focus.
Competition from  pharmaceutical,  chemical,  biomedical and medical  companies,
universities,  research  and other  institutions  is intense  and is expected to
increase.  All, or substantially  all, of these  competitors have  substantially
greater research and development  capabilities,  experience,  and manufacturing,
marketing,   financial  and  managerial  resources.   Further,  acquisitions  of
competing  companies by large  pharmaceutical  or other  companies could enhance
such competitors' financial,  marketing and other capabilities.  There can be no
assurance that developments by others will not render the Company's  products or
technologies  obsolete or not  commercially  viable or that the Company  will be
able to keep pace with technological developments.



                                      -11-

<PAGE>



         GOVERNMENT REGULATION

         The Company's ongoing research and development  projects are subject to
rigorous  FDA  approval   procedures.   The  preclinical  and  clinical  testing
requirements to demonstrate safety and efficacy in each clinical indication (the
specific condition intended to be treated) and regulatory  approval processes of
the FDA can  take a  number  of  years  and  will  require  the  expenditure  of
substantial  resources by the Company.  Delays in obtaining  FDA approval  would
adversely  affect the  marketing of products to which the Company has rights and
the Company's ability to receive product revenues or royalties.  Moreover,  even
if FDA  approval is  obtained,  a marketed  product,  its  manufacturer  and its
manufacturing   facilities   are  subject  to  continual   review  and  periodic
inspections  by the FDA, and a later  discovery of previously  unknown  problems
with a product,  manufacturer  or facility  may result in  restrictions  on such
product  or  manufacturer.  Failure  to comply  with the  applicable  regulatory
requirements can, among other things, result in fines, suspensions of regulatory
approvals,  product recalls,  operating  restrictions and criminal  prosecution.
Additional government regulation may be established which could prevent or delay
regulatory approval of the Company's products.  Sales of pharmaceutical products
outside the United States are subject to foreign  regulatory  requirements  that
vary widely from country to country.  Even if FDA  approval  has been  obtained,
approval of a product by comparable regulatory  authorities of foreign countries
must be obtained  prior to the  commencement  of marketing  the product in those
countries.  The time  required to obtain such  approval may be longer or shorter
than  that  required  for  FDA  approval.  The  Company  has  no  experience  in
manufacturing or marketing in foreign  countries nor in matters such as currency
regulations,  import-export  controls or other trade laws. To date,  the Company
has not received final regulatory  approval from the FDA or any other comparable
foreign regulatory authority in respect of any product or technology.

         RISKS INCIDENT TO PATENT APPLICATIONS AND RIGHTS

         The  Company's  success  will  depend in part on its  ability to obtain
patent  protection  for  products  and  processes  and to maintain  trade secret
protection and operate without  infringing the proprietary rights of others. The
degree of patent  protection  to be afforded to  pharmaceutical,  biomedical  or
medical  inventions is an uncertain  area of the law.  There can be no assurance
that the Company will develop or receive  sublicenses or other rights related to
proprietary  technology  which are  patentable,  that any patents  pending  will
issue,  or that any issued patents will provide the Company with any competitive
advantages or will not be challenged by third parties. Furthermore, there can be
no assurance  that others will not  independently  duplicate or develop  similar
products or technologies  to those  developed by or licensed to the Company.  If
the Company is required to defend against  charges of patent  infringement or to
protect its own proprietary rights against third parties, substantial costs will
be  incurred  and  the  Company  could  lose  rights  to  certain  products  and
technologies.

         RELIANCE ON THIRD PARTIES; NO MARKETING OR MANUFACTURING CAPABILITIES

         The Company does not currently have its own sales force or an agreement
with another pharmaceutical company to market the Company's products that are in
development.  When  appropriate,  the Company will attempt to build or otherwise
acquire the necessary marketing capabilities to promote its products.  There can
be no assurance  that the Company will have the resources  available to build or
otherwise acquire its own marketing capabilities,  or that agreements with other
pharmaceutical  companies  can be reached to market the  Company's  products  on
terms acceptable to the Company.

         In  addition,  the  Company  does not  intend  to  manufacture  its own
products.  While the Company  has already  entered  into two  manufacturing  and
supply agreements related to the Premaire(TM) MSI System  Technology,  there can
be no assurance that these  manufacturing and supply agreements will be adequate
or that the Company will be able to enter into future  manufacturing  and supply
agreements on terms acceptable to the Company.

         DEPENDENCE UPON OBTAINING HEALTHCARE REIMBURSEMENT

         The Company's ability to commercialize human therapeutic and diagnostic
products  may  indirectly  depend in part on the extent to which  costs for such
products  and  technologies  are  reimbursed  by  private  health  insurance  or
government  health  programs.  The uncertainty  regarding  reimbursement  may be
especially  significant in the case of newly approved products.  There can be no
assurance that reimbursement price levels will be sufficient to provide a return
to the Company on its investment in new products and technologies.



                                      -12-

<PAGE>



         ADEQUACY OF PRODUCT LIABILITY INSURANCE

         The  use  of the  Company's  proposed  products  and  processes  during
testing, and after approval,  may entail inherent risks of adverse effects which
could  expose the Company to product  liability  claims and  associated  adverse
publicity. Although the Company currently maintains general liability insurance,
there can be no assurance  that the coverage  limits of the Company's  insurance
policies  will be  adequate.  The Company  currently  maintains  clinical  trial
product  liability  insurance  of $2.0  million per event for  certain  clinical
trials and intends to obtain  insurance for future  clinical  trials of products
under development.  There can be no assurance, however, that the Company will be
able to obtain or  maintain  insurance  for any  future  clinical  trials.  Such
insurance  is  expensive,  difficult  to obtain and may not be  available in the
future on acceptable  terms,  or at all. A successful  claim brought against the
Company  in excess of the  Company's  insurance  coverage  would have a material
adverse effect upon the Company and its financial condition. The Company intends
to  require  its  licensees  to obtain  adequate  product  liability  insurance.
However,  there can be no assurance  that  licensees will be able to maintain or
obtain adequate  product  liability  insurance on acceptable  terms or that such
insurance will provide adequate coverage against all potential claims.

         POTENTIALLY LIMITED TRADING MARKET; POSSIBLE VOLATILITY OF STOCK PRICE.

         The Common Stock is listed for trading on American  Stock Exchange (the
"AMEX") under the symbol  ("SHM").  The Company does not  presently  satisfy the
listing  criteria  of the AMEX,  including  the AMEX  requirement  that a listed
company that has sustained losses from operations  and/or net losses in three of
its  four  most  recent  fiscal  years  have  stockholders'  equity  of at least
$4,000,000. The Company has sustained net losses for its four most recent fiscal
years and, at December 31, 1997, had stockholders' deficit of $(4,637,251).  The
failure to meet the AMEX  listing  criteria  may  result in the Common  Stock no
longer being eligible for listing on the AMEX and trading, if any, of the Common
Stock would  thereafter  be conducted  in the  over-the-counter  market.  If the
Company's  Common  Stock  were to be  delisted  from  the  AMEX,  it may be more
difficult  for investors to dispose of, or to obtain  accurate  quotations as to
the market value of, the Common Stock.

         In the event of the  delisting of the  Company's  Common Stock from the
AMEX, the regulations of the Securities and Exchange  Commission  ("Commission")
promulgated  under the  Securities  Exchange Act of 1934, as amended  ("Exchange
Act"),  require additional  disclosure  relating to the market for penny stocks.
Commission  regulations  generally define a penny stock to be an equity security
that has a market  price of less  than  $5.00  per  share,  subject  to  certain
exceptions.  A  disclosure  schedule  explaining  the penny stock market and the
risks  associated  therewith  is required  to be  delivered  to a purchaser  and
various sales practice requirements are imposed on broker-dealers who sell penny
stocks to persons  other than  established  customers and  accredited  investors
(generally  institutions).  In  addition,  the  broker-dealer  must  provide the
customer  with  current  bid and  offer  quotations  for the  penny  stock,  the
compensation  of the  broker-dealer  and its  salesperson in the transaction and
monthly account  statements showing the market value of each penny stock held in
the  customer's  account.  If the  Company's  securities  become  subject to the
regulations  applicable to penny stocks (i.e.,  by AMEX  delisting),  the market
liquidity for the Company's  securities could be severely  affected.  In such an
event, the regulations on penny stocks could limit the ability of broker-dealers
to sell the  Company's  securities  and thus the  ability of  purchasers  of the
Company's  securities to sell their securities in the secondary  market.  In the
absence of an active trading market,  holders of the Common Stock may experience
substantial difficulty in selling their securities.

         VOLATILITY OF MARKET PRICE OF SECURITIES

         The    market    price    of     securities    of    firms    in    the
biotechnology/pharmaceuticals   industries   have   tended   to   be   volatile.
Announcements  of  technological  innovations by the Company or its competitors,
developments  concerning  proprietary rights and concerns about safety and other
factors  may  have a  material  adverse  effect  on the  Company's  business  or
financial  condition.  The market price of the Common Stock may be significantly
affected by  announcements of developments in the medical field generally or the
Company's  research  areas  specifically.   The  stock  market  has  experienced
volatility in market  prices of companies  similar to the Company that has often
been unrelated to the operating  results of such companies.  This volatility may
have a material adverse effect on the market price of the Common Stock.



                                      -13-

<PAGE>



         OUTSTANDING OPTIONS, WARRANTS AND CONVERTIBLE SECURITIES; DILUTION

         As of  December  31,  1997,  the  Company  had  reserved  approximately
4,781,290  shares of its Common Stock for issuance upon exercise of outstanding,
options,  warrants and other  securities  convertible  into shares of its Common
Stock,  including  shares of Common Stock  issuable upon the exercise of options
and warrants  held by officers and  directors of the Company.  In addition as of
December 31, 1997,  the Company had $1,551,000  principal  amount of Convertible
Debentures  and 25,000 shares of Series A Convertible  Series A Preferred  Stock
outstanding.  Each of the  convertible  securities  provide for conversion  into
shares of Common  Stock of the Company at a discount to the market.  The Company
has filed  registration  statements  with the Commission  covering the resale of
substantially  all of the  shares  of  Common  Stock  underlying  such  options,
warrants and other securities. The exercise of options and outstanding warrants,
the  conversion  of such other  securities  and sales of Common  Stock  issuable
thereunder  could have a  significant  dilutive  effect on the  market  price of
shares of the Company's Common Stock and could  materially  impair the Company's
ability to raise capital through the future sale of its equity securities.

         AUTHORIZATION OF SERIES A PREFERRED STOCK

         The Company's  Certificate of Incorporation  authorizes the issuance of
"blank check" preferred stock with such designations,  rights and preferences as
may be  determined  from  time  to  time  by the  Board  of  Directors,  without
shareholder  approval.  In the event of issuance,  such preferred stock could be
utilized, under certain circumstances, as a method of discouraging,  delaying or
preventing a change in control of the Company and preventing  shareholders  from
receiving a premium  for their  shares in  connection  with a change of control.
Except  for  the  issuance  of  shares  of the  Company's  Series  A  Cumulative
Convertible  Redeemable  Preferred  Stock that occurred in  connection  with the
consummation of a private placement in February 1997, the Company has no present
intention to issue any shares of its preferred stock;  however,  there can be no
assurance  that the Company will not issue  additional  shares of its  preferred
stock in the future.

ITEM 2.  PROPERTIES

         The  Company's  principal  executive  offices  are located at 425 South
Woodsmill  Road,  St.  Louis,   Missouri  63017.   These  premises   consist  of
approximately  4,521 square feet subject to a lease that expires  September  14,
2002. The monthly rent for these premises is $9,042.  The Company also maintains
a small office at 37 S. Main Street,  Pittsford, New York (for a monthly rent of
$800).  The lease on the  Pittsford  office  expires  in less  than a year.  The
Company  maintains no  laboratory,  research or other  facilities,  but conducts
research  and   development  in  outside   laboratories   under  contracts  with
universities. The Company believes that its existing office arrangements will be
adequate to meet its reasonably foreseeable needs.

ITEM 3.  LEGAL PROCEEDINGS

         The Company is a defendant in DR.  BONNIE S. DUNBAR V. E/J  DEVELOPMENT
CORPORATION,  U-TECH MEDICAL CORPORATION,  SHEFFIELD MEDICAL TECHNOLOGIES,  INC.
AND DOUGLAS R. EGER, No. 97-28899, in the District Court of Harris County, Texas
(133rd  Judicial  District).  The  plaintiff  in this action  asserts  breach of
contract,  fraud and a claim for quantum meruit relating  principally to certain
stock options exercisable for a total of 40,000 shares of Common Stock issued in
1992 and 1993 to the  plaintiff  in  consideration  of  consulting  and research
services  provided  to the  Company.  The  plaintiff  served  as  the  principal
investigator  at Baylor  College of  Medicine  in  Houston,  Texas on an ovarian
cancer  research  project that was funded for several years by the Company.  The
plaintiff  seeks actual  damages  against  Sheffield  and the other  defendants,
including  Douglas R. Eger,  a former  Chairman of the  Company,  together  with
punitive damages,  attorneys' fees, costs and expenses of the lawsuit,  and pre-
and post-judgment  interest. The Company has denied the plaintiff's  allegations
and is  vigorously  contesting  this  action.  This action is  currently  in the
discovery  phase.  The  Company and the  plaintiff  have  engaged in  settlement
discussions, but no agreement has been reached to date. The Company is currently
unable  predict  the likely  outcome of this  action.  However,  an  unfavorable
decision  could have a material  adverse  effect on the business  and  financial
condition of the Company.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         None.


                                      -14-

<PAGE>



                                     PART II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.

         The  following  table  sets  forth the high and low sale  prices of the
Company's  Common  Stock on the  American  Stock  Exchange  (the "AMEX") for the
periods indicated.

1997                                              HIGH          LOW
                                                  ----          ---

        Fourth Quarter......................     $2.50        $1.125
        Third Quarter.......................     $3.00         $2.00
        Second Quarter......................    $3.375         $2.25
        First Quarter.......................     $3.75        $2.625
1996:
        Fourth Quarter......................    $4.125        $3.125
        Third Quarter.......................    $4.625       $3.0625
        Second Quarter......................     $6.50         $4.00
        First Quarter.......................     $6.75       $3.5625



         The closing  sale price for the  Company's  Common Stock on the AMEX on
March  31,  1998  was  $0.6875  per  share.  At  March  31,  1998,   there  were
approximately 390 holders of record of the Company's Common Stock.


         The Company has never paid  dividends  on its Common Stock and does not
intend to pay cash dividends on its Common Stock in the foreseeable  future. The
terms of the  Company's  Series A Cumulative  Convertible  Redeemable  Preferred
Stock generally  prohibit the payment of cash dividends and other  distributions
on the Company's  Common Stock unless full cumulative  stock dividends on shares
of such Series A Common Stock have been paid or declared in full.

         The following unregistered securities were issued by the Company during
the quarter ended December 31, 1997:


<TABLE>
<CAPTION>
                                                      Number of Shares
                                                       Sold/Issued/               Offering/
       Date of               Description of          Subject to Options         Exercise Price
    Sale/Issuance          Securities Issued             or Warrants             per share ($)         Purchaser or Class

<S>                          <C>                           <C>                   <C>                <C>
October 1997                  Common Stock                 92,895                    1 7/8          Holders of Series A
                                                                                                    Preferred Stock

November -                   Stock Options                 146,000               1 1/2 - 4 1/2      Issuances to employees
December 1997                                                                                       pursuant to 1993 Stock
                                                                                                    Option Plan

December 1997                 Common Stock                 44,769                   1 3/16          Holders of Series A
                                                                                                    Preferred Stock

</TABLE>


The  issuance of these  securities  are  claimed to be exempt from  registration
pursuant  to  Section  4(2)  of the  Securities  Act of  1933,  as  amended,  as
transactions  by an  issuer  not  involving  a public  offering.  There  were no
underwriting  discounts or commissions  paid in connection  with the issuance of
any of these securities.




                                      -15-

<PAGE>


ITEM 6. SELECTED FINANCIAL DATA


                         SELECTED FINANCIAL INFORMATION
                    (IN DOLLARS, EXCEPT PER SHARE INFORMATION
<TABLE>
<CAPTION>

                                                                    YEARS ENDED DECEMBER 31,

                                          1997               1996               1995            1994                1993  
                                      ------------------------------------------------------------------------------------

STATEMENT OF
OPERATIONS
DATA:

<S>                                   <C>               <C>               <C>               <C>               <C>        
Sublicense and                        $    556,914      $    673,664      $     80,610      $     63,290      $    81,671
  interest income


Operating costs and
  expenses

Research and                             5,379,193         3,841,818         4,424,154         3,989,838        2,134,330
  development

General and                              4,666,859         3,840,735         3,044,173         2,393,082        1,823,631
  administrative

     Total operating                    10,046,052         7,682,553         7,468,327         6,382,920        3,957,961
       costs and expenses


Loss from operations                  $ (9,489,138)     $ (7,008,889)     $ (7,387,717)     $ (6,319,630)     $(3,876,290)


Loss per share of common stock -      $      (0.80)     $      (0.65)     $      (0.90)     $      (0.96)     $     (0.75)
  basic



Weighted average common shares          11,976,090        10,806,799         8,185,457         6,596,227        5,169,830
  outstanding



BALANCE SHEET DATA:

Working capital (net)                 $   (837,564)     $  1,433,773      $  1,585,675      $   (799,629)     $ 1,570,183


Total assets                               689,937         2,773,884         2,221,050           371,073        1,834,560


Long-term obligations and                4,019,263            27,206              --                --               --
  redeemable preferred stock

Accumulated deficit                    (36,157,290)      (26,588,652)      (19,579,763)      (12,192,046)      (5,872,416)

Shareholders' equity (net capital       (4,637,251)        1,695,837         1,792,363          (573,853)       1,673,113
deficiency)
</TABLE>


No cash dividends have been paid for any of the periods presented.


Net loss per share is based  upon the  weighted  average  number  of common  and
certain common equivalent shares outstanding.


See consolidated financial statements and accompanying footnotes.



                                      -16-

<PAGE>


ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION.

         THIS REPORT  CONTAINS  CERTAIN  FORWARD-LOOKING  STATEMENTS  WITHIN THE
MEANING OF SECTION 27A OF THE  SECURITIES  ACT OF 1933, AS AMENDED,  AND SECTION
21E OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, WHICH ARE INTENDED TO BE
COVERED BY THE SAFE  HARBORS  CREATED  HEREBY.  ALL  FORWARD-LOOKING  STATEMENTS
INVOLVE RISKS AND UNCERTAINTY,  INCLUDING  WITHOUT  LIMITATION,  RISKS SET FORTH
ABOVE UNDER  BUSINESS - CERTAIN  RISK FACTORS  THAT MAY AFFECT  FUTURE  RESULTS,
FINANCIAL CONDITION AND MARKET PRICE OF SECURITIES".

         THE DISCUSSION  AND ANALYSIS  BELOW SHOULD BE READ IN CONJUNCTION  WITH
THE  FINANCIAL  STATEMENTS  OF THE COMPANY AND THE  RELATED  NOTES TO  FINANCIAL
STATEMENTS INCLUDED ELSEWHERE HEREIN.

OVERVIEW

     Sheffield  Medical  Technologies  Inc.  ("Sheffield")  was  incorporated on
October  17,  1986.  The  Company's  wholly-owned  subsidiary,   U-Tech  Medical
Corporation  ("U-Tech") was  incorporated on January 13, 1992 and was liquidated
on June 30, 1997. On January 10, 1996, Ion  Pharmaceuticals,  Inc. ("Ion"),  was
formed as a wholly-owned  subsidiary of the Company.  At that time, Ion acquired
the Company's rights to certain early-stage  biomedical  technologies.  On April
17,  1997,  CP  Pharmaceuticals,  Inc.  ("CP")  was  formed  for the  purpose of
acquiring Camelot Pharmacal, L.L.C., a privately held pharmaceutical development
company, which acquisition was consummated on April 25, 1997.

     The Company is in the  development  stage and to date has been  principally
engaged  in  research,  development  and  licensing  efforts.  The  Company  has
generated minimal operating  revenue and requires  additional  capital which the
Company  intends to obtain through  out-licensing  as well as through equity and
debt  offerings to continue to operate its business.  The  Company's  ability to
meet its  obligations as they become due and to continue as a going concern must
be  considered  in light of the  expenses,  difficulties  and delays  frequently
encountered  in developing a new business,  particularly  since the Company will
focus on  research,  development  and  unproven  technology  that may  require a
lengthy period of time and  substantial  expenditures  to complete.  Even if the
Company is able to successfully develop new products,  there can be no assurance
that the Company will generate sufficient revenues from the sale or licensing of
such products to be profitable.  Management  believes that the Company's ability
to meet its  obligations  as they become due and to continue as a going  concern
through December 1998 is dependent upon obtaining  additional  financing.  Until
such financing is obtained,  the Company must rely on short-term  loans from its
officers in order to meet certain of its obligations.


FISCAL YEARS ENDED DECEMBER 31, 1997, 1996 AND 1995

         In  1997,  the  Company  signed a  sub-license  agreement  for  certain
early-stage  technologies  and  earned  sub-license  fees that are  included  in
revenue.  Interest  income was  $56,914  for the year ended  December  31,  1997
compared to $163,664 and $80,610 for the years ended December 31, 1996 and 1995,
respectively.  The decrease in 1997 interest income of $106,750 compared to 1996
was due primarily to use of funds  available  for  investment as a result of the
acquisition of the Premaire(TM) MSI System from Siemens AG. The increase in 1996
interest income of $83,054,  compared to 1995, was due primarily to the increase
in the amount of funds  available for investment as the result of the completion
of the Company's  warrant discount program completed in 1996, which raised total
gross proceeds of $5.6 million.

         Research and product development  expenses were $3,729,193 for the year
ending  December 31, 1997 compared to $3,841,818  and  $4,424,154  for the years
ended  December 31, 1996 and 1995,  respectively.  The 1997 decrease of $112,625
was attributable to the winding down of the early-stage  technology projects. In
1997,  the  Company   entered  into  two  (2)  major  research  and  development
agreements.  The Company  sub-licensed  certain  technology  to a subsidiary  of
Imutec  Pharma  Inc.  in  exchange  for cash,  milestone  payments,  transfer of
research  expenses to Imutec and a twenty percent (20%) ownership  interest upon
commercialization.  The Siemens AG agreement,  and related development  expenses
incurred relative to the Premaire(TM) MSI System,  resulted in funds expended of
a total of  $1,800,440  in 1997.  The 1996  decrease of $582,336 in research and
development  costs were  attributable  to  negotiating  extensions  of two major
Sponsored Research Agreements signed in October 1996 and the winding down of the
RBC-CD4 Electroinsertion  Technology project,  partially offset by the increased
development of the Ion Anti-Proliferative technology projects.

         General and administrative expenses were $4,627,567 for the year ending
December 31, 1997  compared to  $3,831,204  and  $2,979,437  for the years ended
December  31, 1996 and 1995,  respectively.  The 1997  increase of $796,363  was
primarily due to an increased  number  management  salaries  resulting  from the
Camelot  acquisition,  compensation expense associated with extension of certain
option and  warrant  agreements,  and  expenses  related  to the two  financings
completed during the year. The 1996 increase of $851,767 primarily resulted from
the one-time  cashless  exercise of options and warrants by a former employee of
the Company, totaling $562,912, and private placement professional fees relating
to Ion.

         Acquisition of in-process  technology  charges of $1,650,000  relate to
the April 25, 1997 acquisition of Camelot Pharmacal, L.L.C.


                                      -17-

<PAGE>




         Interest  expense was $39,292  for the year  ending  December  31, 1997
compared with $9,531 and $64,736 for the years ended December 31, 1996 and 1995,
respectively.   The  1997  increase  of  $29,761  was  attributable  to  the  6%
convertible  debentures issued during the year. The 1996 decrease of $55,205 was
due to satisfaction  in full of the Company's  $550,000 loan from SMT Investment
Partnership in 1995.

         As a result of the above, net loss for 1997 was $9,489,138  compared to
$7,008,889  and  $7,387,717  for the years  ending  December  31, 1996 and 1995,
respectively.

LIQUIDITY AND CAPITAL RESOURCES

         Since its inception,  the Company has financed its operations primarily
through  the sale of  securities,  from  which it has  raised  an  aggregate  of
approximately  $28 million through  December 31, 1997. On February 28, 1997, the
Company closed a private offering of 35,000 shares of its 7% Series A Cumulative
Convertible  Redeemable  Preferred  Stock,  which raised total gross proceeds of
$3.5  million.  The  proceeds of this  offering  were used to fund  research and
development,  patent  prosecution and for working capital and general  corporate
purposes.

         In addition,  in April 1998 the Company  completed two agreements  that
provided  additional  capital.  The first  provided the Company with $650,000 in
gross proceeds from the sale of the Company's  Common Stock. The second provided
the Company with  $1,250,000  in gross  proceeds  from the sale of the Company's
Series B Convertible Redeemable Preferred Stock.

         From inception  through  December 31, 1997, the Company earned $453,827
in interest on cash, cash  equivalents and short-term  investments.  The Company
invests excess cash in cash  equivalents  and  short-term  investments in a cash
management  account that invests in U.S.  government  securities  and high grade
corporate investments.

         Net cash used in  development  stage  activities was $6,677,405 for the
year  ended  December  31,  1997  compared  with   $6,043,876,   $7,541,937  and
$30,198,450  for the years ended  December 31, 1996 and 1995, and from inception
in 1986 through 1997, respectively. Cash of $3,284,812,  $6,420,834,  $9,346,901
and $27,955,005  was provided by the issuance of securities in 1997,  1996, 1995
and from inception in 1986 through 1997, respectively.

         The Company's  total assets were $689,937 at December 31, 1997 compared
with  $2,773,884  at December  31, 1996.  The 1997  decrease of  $2,083,947  was
primarily   attributable  to   expenditures   related  to  the  acquisition  and
development of the Premaire(TM) MSI System technology. The Company's liabilities
at December  31,  1997,  consisting  of accounts  payable,  sponsored  research,
capital lease  obligations  and the 6% convertible  debenture,  were  $2,938,425
compared with $1,078,047 at December 31, 1996.

         The Company spent approximately $19.3 million through December 31, 1997
to fund  certain  ongoing  technology  research  projects  and  expects to incur
additional  costs  in the  future,  including  costs  relating  to  its  ongoing
sponsored  research and  development  activities,  and  preclinical and clinical
testing of its product candidates.  The Company may also bear considerable costs
in connection with filing,  prosecuting,  defending  and/or enforcing its patent
and  other  intellectual  property  claims.  Therefore,  the  Company  will need
substantial  additional  capital before it will recognize  significant cash flow
from operations,  which is contingent on the successful commercialization of the
Company's  technologies.  There can be no assurance that any of the technologies
to which  the  Company  currently  has or may  acquire  rights to can or will be
commercialized or that any revenues generated from such  commercialization  will
be sufficient to fund existing and future research and development activities.

         While the Company  does not believe that  inflation  has had a material
impact on its results of operations, there can be no assurance that inflation in
the future will not impact  financial  markets  which,  in turn,  may  adversely
affect the Company's valuation of its securities and, consequently,  its ability
to raise additional capital,  either through equity or debt instruments,  or any
off-balance sheet refinancing arrangements,  such as collaboration and licensing
agreements with other companies.

         Because the Company does not expect to generate  significant cash flows
from operations for at least several years, the Company believes it will require
additional  funds to meet future  costs.  The Company  will  attempt to meet its
capital  requirements with existing cash balances and through  additional public
or private  offerings of its securities,  debt financing,  and collaboration and
licensing arrangements with other companies.  There can be no assurance that the
Company  will be able to  obtain  such  additional  funds  or  enter  into  such
collaborative and licensing  arrangements on terms favorable to the Company,  if
at all. The Company's development programs may be curtailed if future financings
are not completed.



                                      -18-

<PAGE>



         The  table  below  indicates  (i) the  Company's  direct  research  and
development  expenses by project for the fiscal year ended December 31, 1997 and
from the Company's  inception to December 31, 1997,  (ii) the Company's  current
estimate by project of committed and/or anticipated  funding  requirements after
December 31, 1997 and (iii) revenues received to date by project.

                    DIRECT RESEARCH AND DEVELOPMENT EXPENSES
                                  (IN DOLLARS)
<TABLE>
<CAPTION>

  R&D PROJECT                 Fiscal year     Inception to    Committed and/or    Revenue
                            ended 12/31/97      12/31/97      Anticipated R&D     Received
                                                               Funding After    
                                                                 12/31/97*      
<S>                             <C>            <C>             <C>                    <C>
Multi-Dose Solution Inhaler     1,800,440      1,944,848       17,500,000**           0
  (MSI System)                                                                  
Ion Pharmaceuticals,            1,014,031      4,822,595                0       510,000
  Inc. Technologies                                                             
RBC-CD4 Electroinsertion           15,760      6,254,185                0             0
Technology                                                                      
 Liposome-CD4 Technology                0      2,322,322                0       500,000
HIV/AIDS Vaccine                  137,500      1,211,618                0             0
UGIF Technology                   120,036        223,437                0             0
Membrane Attack Complex           243,744        365,618                0             0
(MAC)/Complement                                                                
  Technology                                                                  

</TABLE>

- -----------------

      *  These figures include management's  estimates of anticipated direct R&D
         funding  as of the  date  of  this  report.  The  amounts  and  rate of
         application  of the  Company's  funds  to any  particular  project  are
         expected  to  fluctuate  and  will  depend  in  part  on the  Company's
         successful  completion of various stages of research,  the availability
         of  additional   financing  and  the   Company's   identification   and
         acquisition of rights in new technologies in the future.

     **  Will be zero dollars in the event Zambon exercises its option agreement
         on the MSI respiratory applications.


         The Company has conducted a review of its computer  systems to identify
the  systems  that could be affected  by the "Year  2000"  issue.  The Year 2000
problem  is the  result of  computer  programs  being  written  using two digits
(rather than four) to define the applicable year. Any of the Company's  programs
that have  time-sensitive  software may  recognize a date using "00" as the year
1900 rather than the year 2000.  This could result in a major system  failure or
miscalculations.  The Company presently believes that the Year 2000 problem will
not pose significant  operational  problems for the Company's  computer systems.
Additionally,  the cost of the Year 2000 problem will have no material impact on
the operations of the Company.




                                      -19-

<PAGE>



ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

                  Not applicable.

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

                  See page F-1.

ITEM 9.  CHANGES  IN  AND  DISAGREEMENTS  WITH  ACCOUNTANTS  ON  ACCOUNTING  AND
         FINANCIAL DISCLOSURE

         Not applicable.



                                      -20-

<PAGE>


                                    PART III

ITEM 10. DIRECTORS,   EXECUTIVE   OFFICERS,   PROMOTERS  AND  CONTROL   PERSONS;
         COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT

         The information required by this item is incorporated by reference from
the Company's  definitive  proxy  statement to be filed not later than April 30,
1998 pursuant to Regulation 14A of the General Rules and  Regulations  under the
Securities Exchange Act of 1934 ("Regulation 14A").

ITEM 11. EXECUTIVE COMPENSATION

         The information required by this item is incorporated by reference from
the Company's  definitive  proxy  statement to be filed not later than April 30,
1998 pursuant to Regulation 14A.


ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The information required by this item is incorporated by reference from
the Company's  definitive  proxy  statement to be filed not later than April 30,
1998 pursuant to Regulation 14A.


ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         The information required by this item is incorporated by reference from
the Company's  definitive  proxy  statement to be filed not later than April 30,
1998 pursuant to Regulation 14A.


                                      -21-

<PAGE>



ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

         (a)(1)   Financial Statements

                  The following Financial Statements are included:
                  Report of Independent Auditors
                  Consolidated Balance Sheets as of 
                    December 31, 1997 and 1996
                  Consolidated Statements of Operations for the years
                    ended December 31, 1997, 1996 and 1995 and for 
                    the period October 17, 1986 (inception) to 
                    December 31 1997
                  Consolidated Statements of Stockholders' Equity (net 
                    capital deficiency) for the period from October 17, 
                    1986 (inception) to December 31 1997
                  Consolidated Statements of Cash Flows for the years
                    ended December 31, 1997, 1996 and 1995 and for
                    the period from October 17, 1986 (inception) to
                    December 31 1997
                  Notes to Financial Statements

         (a)(2)   Financial Statement Schedules

                  All financial statement schedules are omitted because they are
not applicable, or not required, or because the required information is included
in the financial statements or notes thereto.

         (a)(3)   Exhibits:


<TABLE>
<CAPTION>

           NO.                                                                                           REFERENCE

<S>        <C>               <C>                                                                               <C>
           3.1               Certificate of Incorporation of the Company, as amended                        (4)

           3.2               By-Laws of the Company                                                         (4)

           4.1               Form of Common Stock Certificate                                               (2)

           4.2               Certificate of Designation defining the powers, designations,                  (7)
                             rights, preferences, limitations and restrictions applicable to the
                             Company's Series A Cumulative Convertible Redeemable
                             Preferred Stock

           10.1              Employment Agreement dated as of October 1, 1995 between                       (2)
                             the Company and Douglas R. Eger

           10.2              Employment Agreement dated as of September 7, 1995                             (2)
                             between the Company and George Lombardi

           10.3              Amendment dated as of September 22, 1996 to Employment                         (7)
                             Agreement dated as of September 7, 1995 between the
                             Company and George Lombardi

           10.4              Employment Agreement dated as of March 28, 1996 between                        (2)
                             the Company and Michael Zeldin

           10.5              Amendment dated June 6, 1996 to Employment Agreement                           (7)
                             dated as of March 28, 1996 between the Company and Michael
                             Zeldin

           10.6              Employment Agreement dated as of June 6, 1996 between the                      (3)
                             Company and Thomas M. Fitzgerald

          10.65              Employment Agreement dated as of November 17, 1997                             (1)
                             between the Company and Judy Roeske Bullock

           10.7              Agreement of Sublease dated as of November 17, 1995                            (2)
                             between the Company and Brumbaugh Graves Donohue &
                             Raymond relating to 30 Rockefeller Plaza, Suite 4515, New
                             York, New York

           10.8              1993 Stock Option Plan, as amended                                             (1)

           10.9              1993 Restricted Stock Plan, as amended                                         (2)

          10.10              1996 Directors Stock Option Plan                                               (7)

          10.11              Agreement and Plan of Merger among the Company, Camelot                        (6)
                             Pharmacal, L.L.C., David A. Byron, Loren G. Peterson and
                             Carl Siekmann dated April 25, 1997

          10.12              Employment Agreement dated as of April 25, 1997 between the                    (6)
                             Company and David A. Byron

          10.13              Employment Agreement dated as of April 25, 1997 between                        (6)
                             the Company and Loren G. Peterson

          10.14              Employment Agreement dated as of April 25, 1997 between the                    (6)
                             Company and Carl Siekmann

          10.15              Form of the Company's 6% Convertible Subordinated                              (8)
                             Debentures due September 22, 2000.

</TABLE>


                                      -22-

<PAGE>

<TABLE>
<CAPTION>

           NO.                                                                                           REFERENCE

<S>        <C>               <C>                                                                               <C>
           10.16             Lease dated August 18, 1997 between Corporate Center, L.L.C.                   (5)
                             and the Company relating to the lease of office space in St.
                             Louis, Missouri.

           10.17             Assignment and License Agreement dated as of December 3,                       (9)
                             1997 between 1266417 Ontario Limited and Ion
                             Pharmaceuticals, Inc. (portions of this exhibit are omitted and
                             were filed separately with the Securities Exchange Commission
                             pursuant to the Company's application requesting confidential
                             treatment in accordance with Rule 24b-2 as promulgated under
                             the Securities Exchange Act of 1934, as amended).

          10.18              Sub-License Agreement dated as of December 3, 1997                             (9)
                             between 1266417 Ontario Limited and Ion Pharmaceuticals,
                             Inc. (portions of this exhibit are omitted and were filed
                             separately with the Securities Exchange Commission pursuant
                             to the Company's application requesting confidential treatment
                             in accordance with Rule 24b-2 as promulgated under the
                             Securities Exchange Act of 1934, as amended).

          10.19              Severance Agreement dated December 24, 1997 between the                        (1)
                             Company and Douglas R. Eger.

          10.20              Severance Agreement dated October 15, 1997 between the                         (1)
                             Company and George Lombardi.

            21               Subsidiaries of Registrant                                                     (1)

           23.1              Consent of Ernst & Young LLP                                                   (1)

           23.2              Consent of KPMG Peat Marwick LLP                                               (1)

            27               Financial Data Schedule                                                        (1)

</TABLE>


- ----------------------------
(1) Filed herewith.
(2) Incorporated by reference to the Company's Annual Report on Form 10-KSB
    for its fiscal year ended  December 31, 1995 filed with the  Securities
    and Exchange Commission.
(3) Incorporated  by reference to the  Company's  Quarterly  Report on Form
    10-QSB for the quarter  ended June 30,  1996 filed with the  Securities
    and Exchange Commission.
(4) Incorporated  by reference to the  Company's  Quarterly  Report on Form
    10-Q for the quarter ended June 30, 1997 filed with the  Securities and
    Exchange Commission.
(5) Incorporated  by reference to the  Company's  Quarterly  Report on Form
    10-Q for the quarter ended September 30, 1997 filed with the Securities
    and Exchange Commission.
(6) Incorporated  by reference to the  Company's  Quarterly  Report on Form
    10-Q for the quarter ended March 31, 1997 filed with the Securities and
    Exchange Commission.
(7) Incorporated by reference to the Company's Annual Report on Form 10-KSB
    for the year ended  December  31,  1996 filed with the  Securities  and
    Exchange Commission.
(8) Incorporated  by reference to the Company's  Registration  Statement on
    Form S-3 (File No.  333-38327)  filed with the  Securities and Exchange
    Commission on October 21, 1997.
(9) Incorporated  by reference to the Company's  Current Report on Form 8-K
    filed with the Securities and Exchange Commission on December 17, 1997.

(b) Reports on Form 8-K:

    The Company filed a Current  Report on Form 8-K with the Securities and
Exchange  Commission on December 17, 1997 relating to the Company's sale of
certain patent and other proprietary interests.


                                      -23-

<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.


                                        SHEFFIELD PHARMACEUTICALS, INC.



Dated: April 15, 1998                   /s/ Loren G. Peterson
                                        ------------------------------
                                        Loren G. Peterson
                                        President and Chief Executive Officer


                                POWER OF ATTORNEY

         Sheffield  Pharmaceuticals,  Inc. and each of the undersigned do hereby
appoint Loren G. Peterson and Thomas Fitzgerald and each of them severally,  its
or his or her true and  lawful  attorney  to  execute  on  behalf  of  Sheffield
Pharmaceuticals,  Inc. and the undersigned any and all amendments to this Annual
Report and to file the same with all  exhibits  thereto and other  documents  in
connection therewith, with the Securities and Exchange Commission;  each of such
attorneys shall have the power to act hereunder with or without the other.

         In  accordance  with the  Exchange  Act of 1934,  this  report has been
signed  below by the  following  persons  on  behalf  of the  Registrant  in the
capacities and on the dates indicated.


<TABLE>
<CAPTION>

                 Signature                                       Title                                  Date
                 ---------                                       -----                                  ----


<S>                                           <C>                                                  <C> 
/s/ Thomas M. Fitzgerald                      Chairman and Director                                April 15, 1998
- --------------------------------------
         Thomas M. Fitzgerald


/s/ Loren G. Peterson                         Director, President and Chief                        April 15, 1998
- --------------------------------------        Executive Officer
         Loren G. Peterson                    


/s/ John M. Bailey                            Director                                             April 15, 1998
- --------------------------------------
         John M. Bailey



/s/ Digby W. Barrios                          Director                                             April 15, 1998
- --------------------------------------
         Digby W. Barrios



/s/ Douglas R. Eger                           Director                                             April 15, 1998
- --------------------------------------
         Douglas R. Eger


/s/ Judy Roeske Bullock                       Vice President, Chief                                April 15, 1998
- --------------------------------------        Financial Officer,
         Judy Roeske Bullock                  Treasurer and Secretary (Chief Financial
                                              and Chief Accounting Officer)


</TABLE>



                                      -24-

<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)


                                Table of Contents


                                                                            Page
                                                                            ----

Consolidated Financial Statements

      Reports of Independent Auditors .....................................F-2

      Consolidated Balance Sheets as of December 31, 1997 and 1996.........F-4

      Consolidated  Statements of  Operations  
           for the three years in the period
           ended December 31, 1997 and for the period from
           October 17, 1986 (inception) to December 31, 1997 ..............F-5

      Consolidated Statements of Stockholders'  
           Equity (Net Capital  Deficiency)
           for the period from October 17, 1986 (inception) to
           December 31, 1997 ..............................................F-6

      Consolidated  Statements  of Cash Flows 
           for the three  years in the period
           ended December 31, 1997 and for the period from
           October 17, 1986 (inception) to December 31, 1997...............F-7

      Notes to Consolidated Financial Statements ..........................F-8



                                      F-1
<PAGE>
                         Report of Independent Auditors



The Board of Directors and Stockholders
Sheffield Pharmaceuticals, Inc.

We have  audited  the  accompanying  consolidated  balance  sheets of  Sheffield
Pharmaceuticals,  Inc.  (formerly known as Sheffield Medical  Technologies Inc.)
and  subsidiaries (a development  stage  enterprise) as of December 31, 1997 and
1996,  and the related  consolidated  statements  of  operations,  stockholders'
equity (net capital  deficiency),  and cash flows for each of the three years in
the  period  ended  December  31,  1997  and for the  period  October  17,  1986
(inception)  through  December  31, 1997.  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.  The  consolidated
financial  statements  as of December 31, 1993,  and for the period  October 17,
1986 (inception) through December 31, 1993, were audited by other auditors whose
report  dated  February  11,  1994  expressed  an  unqualified  opinion on those
statements and included an explanatory  paragraph that stated that the Company's
"recurring  losses and net deficit  position raise  substantial  doubt about its
ability to continue as a going  concern.  The 1993  financial  statements do not
include any adjustments that might result from the outcome of this uncertainty."
The  consolidated   financial   statements  for  the  period  October  17,  1986
(inception)   through  December  31,  1993  include  cumulative  net  losses  of
$5,872,416.   Our  opinion  on  the   consolidated   statements  of  operations,
stockholders'  equity  (net  capital  deficiency)  and cash flows for the period
October 17, 1986 (inception) through December 31, 1997, insofar as it relates to
amounts for prior  periods  through  December 31,  1993,  is based solely on the
report of other auditors.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards 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.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits and the report of other auditors provide a reasonable
basis for our opinion.

In our  opinion,  based on our  audits,  and for the  period  October  17,  1986
(inception)  through  December  31,  1993,  the  report of other  auditors,  the
financial statements referred to above present fairly, in all material respects,
the  consolidated  financial  position of  Sheffield  Pharmaceuticals,  Inc. and
subsidiaries  at December  31, 1997 and 1996,  and the  consolidated  results of
their  operations and their cash flows for each of the three years in the period
ended December 31, 1997 and the period from October 17, 1986 (inception) through
December 31, 1997, in conformity with generally accepted accounting principles.

The accompanying  consolidated  financial statements have been prepared assuming
that Sheffield  Pharmaceuticals,  Inc. and subsidiaries will continue as a going
concern.  As more fully  described  in Note 1, the  Company has  generated  only
minimal operating revenue,  has incurred recurring operating losses and requires
additional capital. These conditions raise substantial doubt about the Company's
ability to continue as a going concern. The consolidated financial statements do
not  include  any  adjustments  that  might  result  from  the  outcome  of this
uncertainty.



Princeton, New Jersey
February 13, 1998 except for Note 11
 as to which the date is April 15, 1998




                                      F-2
<PAGE>
                          Independent Auditors' Report



The Board of Directors and Stockholders
Sheffield Medical Technologies Inc.:

We  have  audited  the  accompanying   consolidated  statements  of  operations,
stockholders'  equity  (net  capital  deficiency)  and cash  flows of  Sheffield
Medical  Technologies  Inc. and subsidiary (a development  stage enterprise) for
the period from October 17, 1986  (inception) to December 31, 1993 (not included
separately  herein).  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  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit also includes  assessing the accounting  principles used
and significant estimates made by management,  as well as evaluating the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above presents
fairly, in all material respects,  the results of Sheffield Medical Technologies
Inc. and subsidiary's  operations and cash flows for the period from October 17,
1986  (inception)  to December 31, 1993 in conformity  with  generally  accepted
accounting principles.

The accompanying  consolidated  financial statements have been prepared assuming
that  the  Company  will  continue  as a  going  concern.  As  reflected  in the
accompanying  consolidated financial statements,  the Company's recurring losses
raise  substantial  doubt  about its  ability to  continue  as a going  concern.
Management's  plans in regard to these  matters were  described in note 8 to the
December 31, 1993 financial  statements (not included  separately  herein).  The
consolidated  financial  statements  do not include any  adjustments  that might
result from the outcome of this uncertainty.



Houston, Texas
February 11, 1994




                                      F-3
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                           Consolidated Balance Sheets

<TABLE>
<CAPTION>
                                                                                                               December 31,
                                                                                                          1997             1996
                                                                                                      ------------     ------------
                                                                    Assets
<S>                                                                                                   <C>              <C>
Current assets:
          Cash and cash equivalents                                                                   $    393,608     $  1,979,871
          Marketable securities                                                                               --            460,768
          Loan receivable - former officer                                                                  80,000             --
          Prepaid expenses and other current assets                                                         47,378           43,975
                                                                                                      ------------     ------------
               Total current assets                                                                        520,986        2,484,614
                                                                                                      ------------     ------------

Property and equipment:
          Laboratory equipment                                                                             185,852          185,852
          Office equipment                                                                                 142,562           89,019
          Leasehold improvements                                                                              --             61,390
                                                                                                      ------------     ------------
                                                                                                           328,414          336,261
          Less accumulated depreciation and amortization                                                   185,201          162,007
                                                                                                      ------------     ------------
               Net property and equipment                                                                  143,213          174,254
                                                                                                      ------------     ------------

Segregated cash                                                                                               --             75,000
Other assets                                                                                                25,738           40,016
                                                                                                      ------------     ------------
               Total assets                                                                           $    689,937     $  2,773,884
                                                                                                      ============     ============

                              Liabilities and Stockholders' Equity (Net Capital Deficiency)

Current liabilities:
          Accounts payable and accrued liabilities                                                    $    887,782     $    446,965
          Sponsored research payable                                                                       470,768          580,157
          Capital lease obligation-current portion                                                            --             23,719
                                                                                                      ------------     ------------
               Total current liabilities                                                                 1,358,550        1,050,841

Capital lease obligation - non-current portion                                                                --             27,206

6% convertible subordinated debenture                                                                    1,551,000             --
Interest Payable on 6% convertible subordinated debenture                                                   28,875             --

Cumulative convertible redeemable preferred stock, $.01 par value.  Authorized,
          3,000,000 shares; issued and outstanding, 25,000 and 0 shares at
          December 31, 1997 and 1996, respectively                                                       2,468,263             --
Additional paid-in capital associated with cumulative convertible
          redeemable preferred stock                                                                     2,249,145             --
Stock dividends payable on preferred stock                                                                 139,368             --

Commitments and contingencies

Stockholders' equity (net capital deficiency):
          Common stock, $.01 par value.  Authorized, 50,000,000 shares;
                  issued and outstanding, 12,649,539 and 11,388,274
                  shares at December 31, 1997 and 1996, respectively                                       126,495          113,883
          Notes receivable in connection with sale of stock                                                (72,600)        (110,000)
          Additional paid-in capital                                                                    31,386,644       28,319,838
          Unrealized loss on marketable securities                                                            --            (39,232)
          Deficit accumulated during development stage                                                 (36,157,290)     (26,588,652)
                                                                                                      ------------     ------------
                                                                                                        (4,716,751)       1,695,837
                                                                                                      ------------     ------------
               Total liabilities and stockholders' equity (net capital deficiency)                    $    689,937     $  2,773,884
                                                                                                      ============     ============
</TABLE>


                                      F-4
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                      Consolidated Statements of Operations
     For the years ended December 31, 1997, 1996 and 1995 and for the period
             from October 17, 1986 (inception) to December 31, 1997

<TABLE>
<CAPTION>
                                                                                                                    October 17, 1986
                                                                                 Years ended                         (inception) to
                                                                                 December 31,                         December 31,
                                                              --------------------------------------------------      ------------
                                                                   1997              1996               1995              1997
                                                              ------------       ------------       ------------      ------------
<S>                                                           <C>                <C>                <C>               <C>
Revenues:
      Sub-license revenue                                     $    500,000       $    510,000       $       --        $  1,010,000
      Interest income                                               56,914            163,664             80,610           453,827
                                                              ------------       ------------       ------------      ------------

      Total revenue                                                556,914            673,664             80,610         1,463,827

Expenses:
      Acquisition of R & D in-process
           technology                                            1,650,000               --                 --           1,650,000
      Research and development                                   3,729,193          3,841,818          4,424,154        19,252,390
      General and administrative                                 4,627,567          3,831,204          2,979,437        16,522,259
      Interest                                                      39,292              9,531             64,736           159,755
                                                              ------------       ------------       ------------      ------------
      Total expenses                                            10,046,052          7,682,553          7,468,327        37,584,404
                                                              ------------       ------------       ------------      ------------

Loss before extraordinary item                                  (9,489,138)        (7,008,889)        (7,387,717)      (36,120,577)
Extraordinary item                                                    --                 --                 --              42,787

                                                              ============       ============       ============      ============
Net loss                                                      $ (9,489,138)      $ (7,008,889)      $ (7,387,717)     $(36,077,790)
                                                              ============       ============       ============      ============

Acretion of mandatorily redeemable preferred stock            $    (79,500)                                           $    (79,500)
                                                              ------------                                            ------------ 
Net loss - attributable to common shares                      $ (9,568,638)                                           $(36,157,290)
                                                              ============                                            ============ 

Loss per share of common stock - basic:
Loss before extraordinary item                                $      (0.80)      $      (0.65)      $      (0.90)     $      (7.30)
Extraordinary item                                                    --                 --                 --                0.01
                                                              ============       ============       ============      ============
Basic net loss per share                                      $      (0.80)      $      (0.65)      $      (0.90)     $      (7.29)
                                                              ============       ============       ============      ============


Weighted average common shares
      outstanding - basic:                                      11,976,090         10,806,799          8,185,457         4,946,268
                                                              ============       ============       ============      ============
</TABLE>


                                      F-5
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
    Consolidated Statements of Stockholders' Equity (Net Capital Deficiency)
      For the period from October 17, 1986 (inception) to December 31, 1997


<TABLE>
<CAPTION>
                                                                Noted                  Unrealized       Deficit       Total
                                                              receivable               gain (loss)    accumulated   stockholders'
                                                            in connection  Additional      on           during        equity
                                                 Common        with sale     paid-in    marketable    development  (Net capital
                                                 stock         of stock      capital    securities       stage      deficiency)
                                              ------------  ------------  ------------ ------------  ------------  ------------
<S>                                           <C>           <C>           <C>          <C>           <C>           <C>          
Balance at October 17, 1986                           --            --            --           --            --
Common stock issued                           $ 11,288,329          --    $    254,864         --            --      11,543,193
Common stock options issued                           --            --          75,000         --            --          75,000
Net loss                                              --            --            --           --     (12,192,046)  (12,192,046)
                                              ------------  ------------  ------------ ------------  ------------  ------------
Balance at December 31, 1994                    11,288,329          --         329,864         --     (12,192,046)     (573,853)
Reincorporation in Delaware at $.01 par value  (11,220,369)         --      11,220,369         --            --            --
Common stock issued                                 27,656          --       9,726,277         --            --       9,753,933
Net loss                                              --            --            --           --      (7,387,717)   (7,387,717)
                                              ------------  ------------  ------------ ------------  ------------  ------------
Balance at December 31, 1995                        95,616          --      21,276,510         --     (19,579,763)    1,792,363
Common stock issued                                 18,267          --       7,043,328         --            --       7,061,595
Common stock subscribed                               --        (110,000)         --           --            --        (110,000)
Unrealized loss on marketable securities              --            --            --        (39,232)         --         (39,232)
Net loss                                              --            --            --           --      (7,008,889)   (7,008,889)
                                              ------------  ------------  ------------ ------------  ------------  ------------
Balance at December 31, 1996                       113,883      (110,000)   28,319,838      (39,232)  (26,588,652)    1,695,837
Issuance of common stock in connection with
  acquisition of Camelot Pharmacal, L.L.C            6,000          --       1,644,000         --            --       1,650,000
Common stock issued                                  6,612        37,400     1,041,750         --            --       1,085,762
Common stock options and warrants issued              --            --         165,868         --            --         165,868
Common stock options extended                         --            --         215,188         --            --         215,188
Acretion of Issuance costs for
  cumulative convertible redeemable
  preferred stock                                                                                        (179,500)     (179,500)
Unrealized gain on marketable securities              --            --            --         39,232          --          39,232
Net loss                                              --            --            --           --      (9,489,138)   (9,489,138)
                                              ============  ============  ============ ============  ============  ============
Balance at December 31, 1997                  $    126,495  $    (72,600) $ 31,386,644 $       --    $(36,157,290) $ (4,716,751)
                                              ============  ============  ============ ============  ============  ============
</TABLE>

                                      F-6
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                      Consolidated Statements of Cash Flows
     For the years ended December 31, 1997, 1996 and 1995 and for the period
             from October 17, 1986 (inception) to December 31, 1997
<TABLE>
<CAPTION>
                                                                                                                    October 17, 1986
                                                                                       Years ended                  (inception) to
                                                                                       December 31,                  December 31,
                                                                       ------------------------------------------   ------------
                                                                           1997           1996            1995          1997
                                                                       ------------   ------------   ------------   ------------
<S>                                                                    <C>            <C>            <C>             <C>         
Cash outflows from development stage activities and 
   extraordinary gain:
      Loss before extraordinary item                                   $ (9,489,138)  $ (7,008,889)  $ (7,387,717)   (36,120,577)
     Extraordinary gain on extinguishment of debt                              --             --             --           42,787
                                                                       ------------   ------------   ------------   ------------
       Net loss                                                          (9,489,138)    (7,008,889)    (7,387,717)   (36,077,790)
Adjustments to reconcile net loss to net cash used by
   development stage activities:
     Issuance of common stock, stock options/warrants for services          381,056        640,762        357,032      1,922,059
     Non-cash interest expense                                               28,875           --           50,000         78,875
     Write-off of in-process technology                                   1,650,000           --             --        1,650,000
     Securities aquired under sub-license agreement                            --         (500,000)          --         (500,000)
     Issuance of common stock for intellectual property rights                 --             --             --          866,250
     Amortization of organizational and debt issuance costs                    --             --             --           77,834
     Depreciation and amortization                                           84,584         71,652         47,992        246,591
     Increase in debt issuance and organizational costs                        --             --             --          (77,834)
     Loss realized on sale of marketable securities                         324,915           --             --          324,915
     Decrease (increase) in prepaid expenses and other current assets        (3,403)       109,810        (88,618)      (106,419)
     Decrease (increase) in other assets                                     14,278         44,354         (4,387)        33,303
     Increase (decrease) in accounts payable, accrued liabilities           440,817        245,680       (375,785)       310,712
     Increase (decrease) in sponsored research payable                     (109,389)       352,755       (140,454)     1,047,838
                                                                       ------------   ------------   ------------   ------------
       Net cash used by development stage activities                     (6,677,405)    (6,043,876)    (7,541,937)   (30,198,450)
                                                                       ------------   ------------   ------------   ------------
Cash flows from investing activities:
     Proceeds on sale of marketable securities                              175,085           --             --          175,085
     Acquisition of laboratory and office equipment                         (53,543)       (51,136)       (24,517)      (317,352)
     Decrease (increase) in segregated cash                                  75,000        (75,000)          --             --
     Increase in notes receivable in connection with sale of stock             --         (240,000)          --         (240,000)
     Increase in loan receivable - former officer                           (80,000)          --             --          (80,000)
     Payments of notes receivable                                            37,400        130,000           --          167,400
     Purchase of Camelot Pharmacal, L.L.C.,
       net of cash acquired                                                 (46,687)          --             --          (46,687)
                                                                       ------------   ------------   ------------   ------------
       Net cash provided (used) by investing activities                     107,255       (236,136)       (24,517)      (341,554)
                                                                       ------------   ------------   ------------   ------------
Cash flows from financing activities:
     Principal payments under capital lease                                 (50,925)       (21,528)          --          (72,453)
     Conversion of convertible, subordinated notes                             --             --             --          749,976
     Proceeds from issuance of convertible debenture                      1,750,000           --          550,000      2,300,000
     Proceeds from issuance of common stock                                    --             --        7,699,574     13,268,035
     Proceeds from issuance of preferred stock                            3,284,812           --             --        3,284,812
     Proceeds from exercise of stock options                                   --          471,550        866,127      1,337,677
     Proceeds from exercise of warrants                                        --        5,949,284        231,200     10,064,481
                                                                       ------------   ------------   ------------   ------------
       Net cash and cash equivalents provided by financing activities     5,199,075      6,399,306      9,346,901     30,932,528
                                                                       ------------   ------------   ------------   ------------
       Net increase in cash and cash equivalents                         (1,586,263)       119,294      1,780,447        392,524
 Cash and cash equivalents at beginning of period                         1,979,871      1,860,577         80,130          1,084
                                                                       ============   ============   ============   ============
 Cash and cash equivalents at end of period                            $    393,608   $  1,979,871   $  1,860,577   $    393,608
                                                                       ============   ============   ============   ============

Noncash investing and financing activities:
     Common stock, stock options and warrants issued for services      $    381,056   $    640,762   $    357,032   $  1,921,259
     Common stock issued for acquisitions                                 1,650,000           --             --        1,655,216
     Common stock issued for intellectual property rights                      --             --             --          866,250
     Common stock issued to retire debt                                        --             --          600,000        600,000
     Common stock issued to redeem convertible securities                 1,334,105           --             --        1,334,105
     Securities acquired under sub-license agreement                           --          500,000           --          500,000
     Unrealized (realized) depreciation of investments                      (39,232)        39,232           --             --
     Equipment acquired under capital lease                                    --           72,453           --           72,453
     Notes payable converted to common stock                                   --             --             --          749,976
     Stock dividends                                                        182,352           --             --          182,352
                                                                       ============   ============   ============   ============

Supplemental disclosure of cash flow information:
   Interest paid                                                       $     10,417   $      9,531   $     64,736   $    130,880
                                                                       ============   ============   ============   ============
</TABLE>


                                      F-7
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   Notes to Consolidated Financial Statements


1.     DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION

            Sheffield Medical  Technologies Inc.  ("Sheffield") was incorporated
            on October 17, 1986. The Company's wholly-owned  subsidiary,  U-Tech
            Medical Corporation  ("U-Tech") was incorporated on January 13, 1992
            and was  liquidated  on June 30,  1997.  On January  10,  1996,  Ion
            Pharmaceuticals,   Inc.  ("Ion"),   was  formed  as  a  wholly-owned
            subsidiary of the Company.  At that time, Ion acquired the Company's
            rights to certain early-stage biomedical technologies.  On April 17,
            1997, CP Pharmaceuticals,  Inc. ("CP") was formed for the purpose of
            acquiring Camelot Pharmacal, L.L.C., a privately held pharmaceutical
            development company,  which acquisition was consummated on April 25,
            1997. On January 26, 1995, the Company's  shareholders  approved the
            proposal to reincorporate Sheffield in Delaware,  which was effected
            on June 13,  1995.  On June 26,  1997,  the  Company's  shareholders
            approved  the  proposal to change  Sheffield's  name from  Sheffield
            Medical Technologies Inc. to Sheffield Pharmaceuticals,  Inc. Unless
            the context requires  otherwise,  Sheffield,  U-Tech, Ion and CP are
            referred  to  as  "the  Company."  All   significant   inter-company
            transactions are eliminated in consolidation.

            The  Company  is in the  development  stage  and to  date  has  been
            principally engaged in research,  development and licensing efforts.
            The Company has  generated  minimal  operating  revenue and requires
            additional  capital  which the  Company  intends  to obtain  through
            out-licensing  as well as  through  equity  and  debt  offerings  to
            continue to operate its business.  The Company's ability to meet its
            obligations  as they become due and to  continue as a going  concern
            must be considered in light of the expenses, difficulties and delays
            frequently  encountered  in developing a new business,  particularly
            since the Company will focus on product development that may require
            a lengthy period of time and  substantial  expenditures to complete.
            Even if the Company is able to  successfully  develop new  products,
            there can be no assurance that the Company will generate  sufficient
            revenues  from  the  sale  or  licensing  of  such  products  to  be
            profitable.  Management  believes that the Company's ability to meet
            its  obligations  as  they  become  due and to  continue  as a going
            concern   through   December  1998  are  dependent   upon  obtaining
            additional  financing.  (See  Note  11.)  Until  such  financing  is
            obtained,  the  Company  must  rely on  short-term  loans  from  its
            officers in order to meet certain of its obligations.

            The  accompanying   consolidated   financial  statements  have  been
            prepared on a going concern basis which contemplates the realization
            of assets and  satisfaction  of liabilities  and  commitments in the
            normal  course of  business.  The Company has incurred net losses of
            $9,489,138   $7,008,889  and  $7,387,717  during  the  years  ended
            December  31,  1997,  1996  and  1995   respectively,   and  has  an
            accumulated deficit of $36,077,790 from inception (October 17, 1986)
            through December 31, 1997.

2.   SIGNIFICANT ACCOUNTING POLICIES

            CASH EQUIVALENTS

            The Company  considers all highly liquid  instruments  with original
            maturities of three months or less to be cash equivalents.

            MARKETABLE SECURITIES

            Marketable  securities generally consist of investments which can be
            readily purchased or sold using established  markets.  The Company's
            securities, which are classified as available-for-sale,  are carried
            at market with  unrealized  gains and losses  reported as a separate
            component of stockholders equity.

            PROPERTY AND EQUIPMENT

            Property and equipment are stated at cost.  Depreciation is computed
            over three or five year periods using the straight-line method.



                                      F-8
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   Notes to Consolidated Financial Statements


            Assets  under  capital  leases,   consisting   primarily  of  office
            equipment and  improvements,  are  amortized  over the lesser of the
            useful life or the  applicable  lease  terms,  whichever is shorter,
            which approximate three years.

            RESEARCH AND DEVELOPMENT COSTS

            Research  and  development  costs ("R & D costs")  are  expensed  as
            incurred,  except for fixed  assets to which the  Company has title,
            which are capitalized and  depreciated  over their estimated  useful
            lives.

            BASIC LOSS PER SHARE OF COMMON STOCK

            In 1997, the Financial  Accounting  Standards  Board ("FASB") issued
            Statement  of  Financial  Accounting  Standards  ("SFAS")  No.  128,
            Earnings Per Share.  SFAS No. 128 replaced the  previously  reported
            primary and fully diluted  earnings per share with basic and diluted
            earnings  per  share.  Unlike  primary  earnings  per  share,  basic
            earnings  per  share  excludes  any  dilutive  effects  of  options,
            warrants and convertible  securities.  Diluted earnings per share is
            very similar to the previously  reported fully diluted  earnings per
            share.  Basic net loss per share is based upon the weighted  average
            Common Stock outstanding  during each year. Common Stock equivalents
            are not  included  as their  effect is  antidilutive.  The effect of
            adoption of SFAS No. 128 had no financial  impact,  and accordingly,
            no restatement of loss per share for prior years was necessary.  Use
            of Estimates

            The  preparation  of the financial  statements  in  conformity  with
            generally accepted accounting principles requires management to make
            estimates and  assumptions  that affect the amounts  reported in the
            financial  statements and accompanying  notes.  Actual results could
            differ from those estimates.

            STOCK BASED COMPENSATION

            As permitted by FASB Statement No. 123,  "Accounting for Stock-Based
            Compensation"  (SFAS No.  123),  the  Company  has elected to follow
            Accounting  Principal  Board Opinion No. 25,  "Accounting  for Stock
            Issued Employees" (APB 25) and related interpretations in accounting
            for its stock option  plans.  Under APB 25, no expense is recognized
            at the  time of  option  grant  because  the  exercise  price of the
            Company's  employee  stock option  equals or exceeds the fair market
            value of the underlying common stock on the date of grant.

            IMPACT OF RECENTLY ISSUED ACCOUNTING STANDARDS

            In June 1997, the FASB issued SFAS No. 130, Reporting  Comprehensive
            Income.  SFAS No. 130  establishes  standards  for the reporting and
            display of comprehensive  income and its components in a full set of
            general purpose financial statements and applies to all enterprises.
            SFAS No. 130 is effective for financial  statements for fiscal years
            beginning after December 15, 1997. The adoption of SFAS No. 130 will
            have no impact on the Company's  consolidated results of operations,
            financial position or cash flows.

            In June  1997,  the FASB  issued  SFAS No.  131,  Disclosures  about
            Segments  of  an  Enterprise  and  Related  Information,   which  is
            effective for years  beginning after December 15, 1997. SFAS No. 131
            establishes  standards for the way that public business  enterprises
            report  information  about  operating  segments in annual  financial
            statements  and  requires  that those  enterprises  report  selected
            information about operating  segments in interim financial  reports.
            It also establishes standards for related disclosures about products
            and services, geographic areas and major customers. The Company will
            adopt the new  requirements  retroactively  in 1998.  Management  is
            currently  evaluating  SFAS No. 131 and does not anticipate that the
            adoption  of this  statement  will  have  significant  effect on the
            Company's financial reporting.



                                      F-9
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   Notes to Consolidated Financial Statements


3.     ACQUISITION

            On April 25, 1997, the Company  completed its acquisition of Camelot
            Pharmacal,  L.L.C., a newly formed,  privately held Missouri limited
            liability   company   focusing  on  the   development  of  specialty
            pharmaceuticals.  The purchase price  consisted of 600,000 shares of
            the  Company's  common  stock  (valued  at $2.75 per  share) and the
            assumption  of  certain  liabilities  in excess of  tangible  assets
            acquired of $8,262.  The  transaction  was treated as a purchase for
            accounting  purposes,  and  accordingly,  the assets and liabilities
            assumed have been recorded at their  estimated fair market values at
            the date of  acquisition.  Since  technological  feasibility  of the
            in-process   research  and  development  costs  have  not  yet  been
            established and the technology had no alternative  future use at the
            acquisition  date, the in-process  research and development costs of
            $1,650,000 were immediately  written-off and included in the results
            of operations as a non-recurring  charge for the year ended December
            31, 1997.  Camelot had no revenue and minimal  operating  losses for
            the period ended April 24, 1997 and  therefore  proforma  disclosure
            has not been included.

4.     LEASES

            There were no assets  under  capital  leases at December  31,  1997.
            Capital  lease for property  and  equipment at December 31, 1996 was
            $51,990 (net of accumulated amortization).

            Future minimum lease  commitments under operating leases at December
            31, 1997 are as follows:


                          1998                            $108,504
                          1999                             110,011
                          2000                             113,025
                          2001                             114,532
                          2002                              83,262
                                                          --------
                          Total future minimum
                            lease commitments             $529,334
                                                          ========

            Rent expense for the years ended December 31, 1997,  1996,  1995 and
            the period from  October 17, 1986  (inception)  to December 31, 1997
            was $190,584, $147,104, $105,946, and $523,109, respectively.

5.     CAPITAL STOCK TRANSACTIONS

            The following  table  represents  the issuance of common stock since
            the Company's incorporation:

                                                             Number of common
                                                              shares issued
                                                             ----------------

            Date of incorporation                                900,000
            Issued during year ended December 31, 1986           990,000
            Issued during year ended December 31, 1991           412,500
            Issued during year ended December 31, 1992           850,000
            Issued during year ended December 31, 1993         2,509,171
            Issued during year ended December 31, 1994         1,134,324
            Issued during year ended December 31, 1995         2,765,651
            Issued during year ended December 31, 1996         1,826,628
            Issued during year ended December 31, 1997         1,261,265
                                                               ---------
            Balance outstanding at December 31, 1997          12,649,539
                                                              ==========

            The shares issued during 1993 included (i) 1,666,668  shares related
            to the initial public  offering;  (ii) 272,500 shares related to the
            exercise  of  warrants  at a price of Can.  $3.50 per  share;  (iii)
            31,250 shares as  consideration  for fiscal agency fees; (iv) 10,000
            shares  related to the exercise of warrants at a price of Can. $1.00
            per share;  (v)  524,753  


                                      F-10
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   Notes to Consolidated Financial Statements


            shares  related to the  conversion  of 10%  Convertible  Notes at an
            average price of Can. $1.82 per share;  (vi) 4,000 shares to members
            of  the  Scientific   Advisory  Board,  in  consideration  of  their
            services, at $1.78 per share.

            Under the UGIF Technology Option Agreement (the "Option  Agreement")
            dated  November 11, 1992,  and approved by the  shareholders  of the
            Company on December 2, 1993, the Company obtained an option from E/J
            Development  Corporation  d/b/a TechSource  Development  Corporation
            ("TechSource")  to  acquire  an  exclusive  sublicense  to the  UGIF
            Technology  in exchange  for 300,000  shares of Common  Stock of the
            Company (after taking into account a one-for-two reverse stock split
            effective  on  February  11,  1993).  Mr.  Douglas R. Eger,  who was
            formerly  Chairman of the Company,  is a former 50%  shareholder  of
            TechSource.  On January 10, 1994,  TechSource  assigned its right to
            receive  215,000  shares  of Common  Stock  pursuant  to the  Option
            Agreement  to Mr.  Eger and  assigned  its right to  receive  85,000
            shares of Common  Stock  pursuant  to the  Option  Agreement  to Mr.
            Jenke. Effective January 10, 1994, the Company issued such shares to
            Messrs.  Eger and Jenke at  approximately  $0.02  per share  (market
            value of $4.8125 per share) on January 10,  1994,  at which time the
            Company  recorded the estimated  fair market value of $866,250 as an
            expense. Mr. Eger sold his interest in TechSource to Mr. A.M. Jenke,
            a former director and officer of Sheffield, in September 1994.

            In March 1994, a total of $3,121,164  was received from the exercise
            of 832,324  of the  Company's  Redeemable  Stock  Purchase  Warrants
            issued in connection with the Company's February 1993 initial United
            States public  offering of 833,334 units,  each such unit consisting
            of two  shares  of  Common  Stock and one  Redeemable  Common  Stock
            Purchase  Warrant  exercisable  for one share of  Common  Stock at a
            price of $3.75,  net of the  buyback of 1,010  warrants at $0.05 per
            warrant.

            In April 1995,  gross proceeds of $3,280,600  were received  through
            the  issuance of 410,075  units by private  placement  at a price of
            $8.00  per  unit.  Each such  unit  consisted  of two  shares of the
            Company's Common Stock and a warrant to purchase one share of common
            stock  at a price  of  $5.00  at any  time up  until  and  including
            February 10, 2000.  The warrants are redeemable by the Company under
            certain circumstances.

            On January  23,  1995,  SMT made a 10% loan (the "SMT  Loan") to the
            Company in the  principal  amount of  $550,000  pursuant to a demand
            loan agreement (the SMT Loan Agreement"). Under the terms of the SMT
            Loan Agreement, SMT could demand the payment in full of the SMT Loan
            at any time or December 31, 1996 whichever came first. To secure the
            Company's  obligations  under the SMT Loan  Agreement,  the  Company
            granted  SMT  a  security  interest  in  substantially  all  of  the
            Company's  assets,  which security interest has since been released.
            The note  evidencing  the SMT Loan (the  "Original  SMT  Note")  was
            exchanged  pursuant to the terms of the SMT Loan Agreement for a new
            note (the "SMT  Convertible  Note")  that  permitted  the  holder to
            exchange the SMT Convertible Note (in whole or in part) into 200,000
            shares of Common Stock. In addition, the SMT Loan Agreement required
            the Company upon  issuance of the SMT  Convertible  Note to issue to
            SMT  warrants  (the "SMT  Warrants")  to acquire  200,000  shares of
            Common  Stock at any time  within five years after the date of issue
            for a price of $4.00 per share.  The SMT Warrants are  redeemable by
            the  Company  for $4.00 per share at any time after the price of the
            Common  Stock  exceeds an average of $6.00 per share for 20 business
            days. SMT was granted  certain  registration  rights with respect to
            the  Common  Stock  issuable  to SMT  upon  conversion  of  the  SMT
            convertible Note and SMT Warrants. By letter dated June 1, 1995, SMT
            exercised its right to convert the SMT Convertible Note into 200,000
            shares of Common Stock and  subsequently  assigned the right to such
            shares to an unaffiliated third party.

            In July 1995, the Company completed a private placement of 1,375,000
            units to accredited investors at a price of $4.00 per unit for gross
            proceeds of $5,500,000.  Each such unit consists of one share of the
            Company's Common Stock and a warrant to purchase one share of common
            stock  at a price  of  $4.50  at any  time up  until  and  including
            February 10, 2000.  The warrants are redeemable by the Company under
            certain circumstances.

            On April 30,  1996,  the  Company  completed  its  warrant  discount
            program through which the Company offered holders of warrants issued
            in private placements  completed in 1995 the opportunity to exercise
            such warrants at up 




                                      F-11
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   Notes to Consolidated Financial Statements


            to a 121/2 %  discount  from  the  actual  exercise  prices  of such
            warrants.  A total of $5.6 million was received from the exercise of
            such  warrants  with the  related  issuance of  1,373,250  shares of
            common stock.

            On February 26, 1997, 35,700 shares of Series A Preferred Stock were
            issued  pursuant  to  a  private  placement.  Holders  of  Series  A
            Preferred Stock have the right,  exercisable commencing May 29, 1997
            and  ending  February  28,  1999,  to  convert  shares  of  Series A
            Preferred  Stock into shares of Common  Stock.  As of  December  31,
            1997,  25,000 shares of Series A Preferred  Stock were  outstanding.
            Between  August 26, 1997 and  December 31,  1997,  10,700  shares of
            Series A Preferred stock,  plus related accrued  dividends  thereon,
            were  converted  into 44,769 shares of Common  Stock.  The number of
            shares  of  Common  Stock  issuable  upon  conversion  of  Series  A
            Preferred  Stock is  determined  by  reference  to the lesser of (i)
            $3.31875  and (ii) 85% of the  "current  market  price" per share of
            Common Stock,  where  "current  market  price"  means,  with certain
            exceptions,  the average of the  closing bid prices of Common  Stock
            for the 10  consecutive  trading  days  ending the last  trading day
            before  the  applicable  conversion  date.  Each  share of  Series A
            Preferred  Stock earns a  cumulative  dividend  payable in shares of
            Common Stock at a rate per share equal to 7.0% of the original  $100
            purchase price per share of the Series A Preferred  Stock payable at
            the time of  conversion.  Stock  dividends  payable  on the Series A
            Preferred  Stock  toatalled  $139,368 at December  31,  1997.  Under
            certain  circumstances,  cash is  payable  to  holders  of  Series A
            Preferred  Stock in lieu of Common  Stock.  The  Series A  Preferred
            Stock is redeemable upon the occurance of certain events.

            On April 25, 1997,  Camelot  Pharmacal,  L.L.C.,  a Missouri limited
            liability   company   ("Camelot"),   merged   with   and   into   CP
            Pharmaceuticals,  Inc., a newly formed,  wholly owned  subsidiary of
            the  Company.  The  principals  of Camelot at the time of the merger
            were  Loren G.  Peterson,  Carl F.  Siekmann  and  David  A.  Byron.
            Pursuant  to the  related  agreement  and  plan of  merger,  Messrs.
            Peterson,  Siekmann and Byron each received 200,000 shares of Common
            Stock.  Following the  consummation  of the merger,  each of Messrs.
            Peterson, Siekmann and Byron entered into employment agreements with
            Sheffield and received stock options  providing each  individual the
            right to purchase up to 400,000  shares of Common  Stock.  (See Note
            3.)

            On September 22, 1997, the Company  consummated a private  placement
            of $1,750,000  principal  amount of its 6% Convertible  Subordinated
            Debentures   due  September  22,  2000,   $1,551,000  of  which  was
            outstanding  as of  December  31,  1997.  In  addition,  the Company
            granted the holder of the  Debenture  warrants  to purchase  140,000
            shares of the Company's  common stock at $2.80 per share. A value of
            $115,500 was assigned to these warrants.  The Convertible Debentures
            are  convertible  at the option of holders  from  December  22, 1997
            until  maturity,  subject to certain  limitations,  into a number of
            shares  of Common  Stock  equal to (i) the  principal  amount of the
            Convertible  Debenture being so converted divided by (ii) 75% of the
            market price of the Common Stock as of the date of  conversion.  For
            purposes of any conversion of Convertible Debentures, "market price"
            generally  means the  average  of the  closing  prices of the Common
            Stock for the five  trading  day  period  preceding  the  applicable
            conversion date. The Convertible  Debentures also earn interest at a
            rate of 6.0% per annum that is payable by the Company, at the option
            of the holders and subject to certain  conditions,  in shares of its
            Common Stock at a conversion  rate generally equal to the average of
            the  closing  prices of the Common  Stock for the ten  trading  days
            preceding the applicable  interest payment date.  Subject to certain
            limitations,  the  Convertible  Debentures are subject to redemption
            upon the occurrence of certain events.


6.     STOCK OPTIONS AND WARRANTS

            The 1993 Stock  Option Plan was adopted by the Board of Directors in
            August 1992 and approved by the  shareholders  at the annual meeting
            in December  1993.  An  amendment to the Plan  received  shareholder
            approval on March 15, 1995. Under the Stock Option Plan, the maximum
            aggregate  number  of  shares  which  may be  optioned  and  sold is
            1,000,000  shares of common stock. The Stock Option Plan permits the
            grant to  employees  and  officers of the Company of both  incentive
            stock options and non-statutory stock options. The Stock Option Plan
            is  administered  by the Board of  Directors  or a committee  of the
            Board,  which determines the persons to whom options will be granted
            and the terms thereof,  including the exercise price,  the number of
            shares  subject  to  each  option,  and the  exercisability  of each
            option.  The exercise  price of all options for common stock granted
            under the Stock Option Plan must be at


                                      F-12
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   Notes to Consolidated Financial Statements


            least  equal  to the fair  market  value on the date of grant in the
            case of incentive  stock options and 85% of the fair market value on
            the  date of  grant  in the  case of  non-statutory  stock  options.
            Options  generally expire five years from the date of grant and vest
            upon  continuous  employment  by the Company for 12 months after the
            date of grant.

            The 1993 Restricted Stock Plan under which shares of the Company are
            reserved,  in such amounts as  determined by the Board of Directors,
            for  issuance as part of the total shares  reserved  under the Stock
            Option Plan described  above,  was adopted by the Board of Directors
            in  August  1992 and  approved  by the  shareholders  at the  annual
            shareholders  meeting in December 1993.  The  Restricted  Stock Plan
            authorized  the grant of a maximum of 150,000 shares of common stock
            to  key  employees,  consultants,  researchers  and  members  of the
            Company's  Scientific  Advisory Board.  The Restricted Stock Plan is
            administered  by the Board of Directors or a committee of the Board,
            which  determines  the person to whom shares will be granted and the
            terms of such share  grants.  As of the date hereof,  no shares have
            been granted under the 1993 Restricted Stock Plan.

            The 1996  Directors  Stock  Option  Plan was adopted by the Board of
            Directors and approved by the  shareholders on June 20, 1996.  Under
            the Stock Option Plan, the maximum  aggregate number of shares which
            may be  optioned  and sold is 500,000  shares of common  stock.  The
            Directors  Stock Option Plan granted each eligible  director  15,000
            stock options.  To the extent that shares remain available,  any new
            directors  shall  receive the grant of an Option to purchase  25,000
            shares.  To the extent that Shares remain  available under the plan,
            on January 1 of each year commencing  January 1, 1997, each eligible
            director shall be granted an option to purchase  15,000 shares.  The
            exercise  price of all options  granted  under the  Directors  Stock
            Option Plan shall be the fair market value at the date of the grant.
            Options  generally  expire five years from the date of grant.  As of
            the  December 31, 1996,  45,000  shares have been granted  under the
            1996 Directors Stock Option Plan.

            At the annual meeting of stockholders of the Company held on January
            26, 1995,  the  company's  shareholders  approved an increase in the
            number of shares of common stock available for issuance  pursuant to
            the Company's  1993 Stock Option Plan from 250,000 shares to 500,000
            shares.

            On January 23, 1995, the Company granted stock purchase  warrants to
            purchase  200,000 shares of the Company's common stock issuable upon
            conversion of an exchangeable demand note to a financial advisor. In
            June 1995,  such warrants were  exercised for 200,000  shares of the
            Company's Common Stock.

            On February  13,  1995,  the Company  granted  options to purchase a
            total of 200,000  shares of the  Company's  common stock to four new
            members  of the Board of  Directors  at an  exercise  price of $4.00
            which approximated fair market value.

            At the annual  meeting of  stockholders  of the Company held on June
            20, 1996,  the  Company's  shareholders  approved an increase in the
            number of shares  available  for issuance  pursuant to the Company's
            1993 Stock Option Plan from 500,000 shares to 1,000,000 shares.

            See also the discussion  contained in Note 5 related to the Series A
            Preferred  Stock,  the Camelot  acquisition,  and the 6% Convertible
            Subordinated Debentures.

            SFAS No. 123 requires pro forma information regarding net income and
            earnings  per share as if the  Company has  accounted  for its stock
            options and warrants granted  subsequent to December 31, 1994, under
            the fair value method of SFAS No. 123. The fair value of these stock
            options  and  warrants  is  estimated  at the date of grant  using a
            Black-Scholes  option  pricing  model  with the  following  weighted
            average  assumptions for 1997, 1996 and 1995:  risk-free interest of
            5.54%, 6.23%,  6.13%, 6.00% and 5.57%;  expected volatility of 0.526
            and 0.60; expected option life of one to four years from vesting and
            an expected dividend yield of 0.0%.

            For purposes of pro forma  disclosures,  the estimated fair value of
            the stock  options and  warrants is  amortized  to expense  over the
            options' vesting period.  The Company's pro forma  information is as
            follows:


                                      F-13
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   Notes to Consolidated Financial Statements


<TABLE>
<CAPTION>
                                                                                  1997              1996                  1995
                                                                               ----------        ----------            ----------
<S>                                                                            <C>               <C>                   <C>       
                    Pro forma net loss................................         $9,500,810        $8,500,149            $8,993,554
                    Pro forma basic net loss per share of common stock         $     0.79        $     0.79            $     1.10
</TABLE>

            Because SFAS No. 123 is  applicable  only to equity  awards  granted
            subsequent  to December 31,  1994,  its pro forma effect will not be
            fully reflected until 1998.

            Transactions  involving stock options and warrants are summarized as
            follows:

<TABLE>
<CAPTION>
                                                                      1997                1996                   1995
                                                                      ----                ----                   ----
             
                                                                     Weighted                  Weighted               Weighted
                                                            Common    Average     Common        Average    Common      Average
                                                             Stock    Exercise     Stock        Exercise    Stock     Exercise 
                                                            Options    Price      Options        Price     Options     Price
                                                            -------    -----      -------        -----     -------     -----
            
            <S>                                            <C>          <C>      <C>             <C>      <C>           <C> 
            Outstanding, January 1, .....................  3,033,755    4.49     4,164,834       4.02     1,792,000     3.33
            Granted .....................................  3,683,039    3.92     1,014,922       5.52     3,091,408     4.63
            Expired .....................................    327,500    3.18        70,000       3.77             0        0
            
            Exercised ...................................          0       0     1,942,501       3.76       345,500     3.51
            Canceled ....................................  1,608,004    4.11       133,500       4.53       373,074     4.79
                                                           ---------    ----     ---------       ----     ---------     ----
            
            Outstanding December 31, ....................  4,781,290    3.65     3,033,755       4.49     4,164,834     4.02
                                                           ---------    ----     ---------       ----     ---------     ----
            
            Exercisable at end of year...................  2,900,290             2,094,833                1,727,759
                                                           ---------             ---------                ---------

            Weighted average fair value of options
            granted during the year                                    $4.05                    $2.30                  $2.30
</TABLE>

            Stock  options  outstanding  at December 31, 1997 are  summarized as
            follows:

<TABLE>
<CAPTION>
                                                                                  Weighted
                                                                                   Average                   Weighted
                           Range of                  Outstanding                  Remaining                   Average
                        Exercise Prices               Options at              Contractual Life               Exercise
                                                    Dec. 31, 1997                  (Yrs.)                      Price
                     ----------------------     -----------------------      --------------------      ----------------------

<S>                      <C>                           <C>                           <C>                       <C>
                         $ .73 - $3.18                 2,046,000                     7.25                      $ 2.62
                         $3.25 - $5.00                 2,290,791                     2.89                      $ 4.06
                         $5.06 - $8.25                   444,499                     2.60                      $ 6.26
                                                       --------

                         $ .73 - $8.25                 4,781,290                     4.73                      $ 3.65
                                                       =========


            During the period  January 1, 1995 through  December  31, 1997,  the
            exercise  prices of options and warrants  issued by the Company were
            as follows:
</TABLE>

                                      F-14
<PAGE>
                                                   Number of         Exercise
                       Year                   Options/Warrants         Price
                       ----                   ----------------     ------------
                       1995..............       3,091,408          $3.25 - 5.00

                       1996..............       1,014,922          $3.38 - 8.25

                       1997...............      3,683,039          $1.50 - 6.00


            At December 31, 1997, a total of 2,995,000 shares were available for
            future grants under the 1993 Stock Option Plan, the 1993  Restricted
            Stock Plan, and the 1996 Directors Stock Option Plan.


7.     RESEARCH AND DEVELOPMENT AGREEMENTS

            On May 31, 1996, the Company obtained an exclusive,  worldwide right
            and license with Baylor College of Medicine.  The License  Agreement
            gives the Company an exclusive license to inventions and discoveries
            relating to  ps20/Urogenital  Sinus Derived Growth Inhibitory Factor
            ("UGIF").  The  agreement,  which is still in effect,  requires  the
            Company to pay Baylor College 30% of gross compensation received for
            licensed  products  covered  by a  valid  claim  and  10%  of  gross
            compensation not covered by a valid claim for a period of ten years.
            The Company funding of UGIF research was  approximately  $80,000 and
            $14,000 in the years ended December 31, 1997 and 1996, respectively.

            On June 1, 1996, the Company entered into a Research  Agreement with
            Children's  Hospital of Boston, MA. Under the agreement,  Children's
            Hospital has agreed to perform certain  scientific  research,  under
            the direction of principal investigator Dr. Wayne I. Lencer, related
            to  the   discovery,   manufacturing   and  novel  uses  of  certain
            imidazoles,  their  metabolites  and  analogues  thereof,  and other
            related compounds. The agreement, which is still in effect, requires
            the  Company  to pay  $200,050  for  related  research  and  related
            equipment on an agreed upon  payment  schedule  through  March 1997,
            subject to extensions  upon the occurrence of certain  events.  This
            agreement  also grants the Company an  exclusive  option to obtain a
            world-wide  license  under  the  Background   Technology,   Research
            Technology,  Patent Rights and Research  Patent  rights.  Under this
            agreement the Company funding of research was approximately  $54,000
            and  $144,000  for the  years  ended  December  31,  1997 and  1996,
            respectively.

            In July, 1996, the Company entered into a sub-license agreement with
            SEQUUS Pharmaceuticals,  Inc. ("SEQUUS") whereby the Company granted
            an exclusive sub-license to SEQUUS for the continued development and
            commercialization of the Liposome-CD4 technology. In connection with
            the signing of the  sub-license  agreement,  the Company  received a
            license  issue fee payment from SEQUUS in the form of SEQUUS  common
            stock  which  was sold in 1997.  The  Company  is also  entitled  to
            receive  milestone  payments and royalty  payments based on clinical
            trial results and future  product  sales,  if any, which utilize the
            sub-licensed technology.

            On August 22, 1996,  the Company  entered  into  Amendment #2 to the
            Research  Agreement,  dated August 22, 1994,  with The President and
            Fellows of Harvard College. Under the agreement,  Harvard has agreed
            to conduct  research  under the direction of principal  investigator
            Dr. Jose A. Halperin to conduct  laboratory  and animal  studies for
            the  potential  use of  Clotrimazole  and to screen new  proprietary
            analogues  and/or  drugs that  potentially  have the same  effect as
            Clotrimazole.  The agreement, which is still in effect, requires the
            Company to pay  $992,232 for related  research  and  equipment on an
            agreed  upon  payment  schedule   through  July  1996,   subject  to
            extensions  upon  the  occurrence  of  certain  events.  Under  this
            amendment  and  its  previous   agreement  the  Company  has  funded
            approximately $776,000 and $985,000 for the years ended December 31,
            1997 and 1996, respectively.

            In  October,  1996,  the  Company  entered  into an  amendment  of a
            Research  and Option  License  Agreement  dated June 17,  1995.  The
            Amendment  was  effective  as of June 17, 1995 for a two year period
            through June 17, 1997. The Agreement allows the Company to obtain an
            exclusive  worldwide  license from the French National  Institute of
            Health and Medical Research  ("INSERM") to an HIV-AIDS vaccine being
            developed by INSERM.  Under this 




                                      F-15
<PAGE>

            Agreement  the  Company  has  agreed  to pay  $100,000  for  related
            research  through April 1997. In connection with this research,  the
            Company  has  entered  into an  agreement  with  Association  Claude
            Bernard,  also in October of 1996. The agreement,  which is still in
            effect,  requires  the  Company  to pay  $300,000  for  the  related
            research  and supplies on an agreed upon  payment  schedule  through
            April  1997.   Under  both   agreements,   the  Company  has  funded
            approximately  $50,000 and $300,000 for the years ended December 31,
            1997 and 1996, respectively.

            On November 1, 1996,  the Company  entered into  Amendment #6 to the
            Research  Agreement,  dated June 1, 1995 with Children's Hospital of
            Boston, MA. Under the agreement,  Children's  Hospital has agreed to
            perform   certain   research   under  the   direction  of  principal
            investigator  Dr.  Carl  Brugnara  on  the  study  of  analogues  of
            Clotrimazole and/or Clotrimazole metabolites.  The agreement,  which
            is still in effect, requires the Company to pay $224,468 for related
            research and  equipment on an agreed upon payment  schedule  through
            July 1997,  subject to  extensions  upon the  occurrence  of certain
            events.  Also on November 1, 1996,  the Company  elected to exercise
            its option to a license agreement related to the Research Agreement.
            This agreement grants the Company the exclusive worldwide license on
            the Background  Technology and the Research  Technology derived from
            the agreement.  Under this amendment and its previous agreement, the
            Company has funded approximately $203,000 and $180,000 for the years
            ended December 31, 1997 and December 31, 1996, respectively.

            In 1996, the Company entered into quarterly  Research and Consulting
            Agreements with Pharm-Eco Laboratories, Inc. for the development and
            synthesis of novel compounds  related to the Ion  technologies.  The
            agreements  require the Company to pay $175,000  plus  expenses each
            quarter for related research and consulting.  Under these agreements
            the Company has funded  approximately  $251,000 and $774,000 for the
            years ended December 31, 1997 and 1996, respectively.

            In March 1997, the Company entered into exclusive supply and license
            agreements  for the  world-wide  rights  to the  multi-dose  inhaler
            technology  (MSI) of Siemens A.G. The agreements call for Siemens to
            be the exclusive  supplier of the MSI system, a hand-held,  portable
            pulmonary drug delivery system.  The Company paid a licensing fee of
            $1.1 million in April 1997 to Siemens pursuant to these  agreements.
            Under the terms of these  agreements  another DM 2.0 million payment
            was due in January, 1998. (See Note 11.) In addition,  under certain
            circumstances,  the Company  will be required to make another DM 2.0
            million payment to Siemens in January, 1999.

            On November 20, 1997, the Company entered into agreement with Imutec
            Pharma Inc. Under this sub-license, Imutec acquired from the Company
            the  rights to a series of  clotrimazole-related  compounds  for the
            treatment  of cancer,  Kaposi's  sarcoma and actinic  keratosis.  In
            exchange, Imutec agreed to manage and fund the remaining development
            program.  The Company  received  $500,000  in cash upon  signing the
            agreement,  which has been  recognized  as  revenue  during the year
            ended December 31, 1997,  and will receive  $350,000 of Imutec stock
            in June,  1998.  In  addition,  the  Company is  entitled to receive
            additional payments upon the completion of certain milestones in the
            development  of these  compounds and retains a 20 percent  ownership
            interest upon commercialization.


8.     RELATED PARTY TRANSACTIONS

           On January 23, 1995, SMT made a $550,000 loan to the Company pursuant
           to a demand loan agreement.  In June 1995, SMT exercised its right to
           convert the SMT  convertible  note to 200,000  shares of common stock
           and subsequently assigned the right to such shares to an unaffiliated
           third party in exchange for  repayment of the loan and  interest.  In
           addition, the Company, as required under the Note, issued warrants to
           acquire  200,000 shares of common stock at any time within five years
           after the date of issuance at a price equal to $4.00 per share.  (See
           Note  4.) Dr.  Stephen  Sohn,  formerly  a  member  of the  Board  of
           Directors of the Company, was also a general partner of SMT.



                                      F-16
<PAGE>

9.     INCOME TAXES

           The  Company  utilizes  the  liability  method to account  for income
           taxes.  Under this method,  deferred tax assets and  liabilities  are
           determined based on differences  between financial  reporting and tax
           bases of assets and  liabilities  and are measured  using enacted tax
           rates  and laws  that  will be in  effect  when the  differences  are
           expected to reverse.

           Deferred   income   taxes   reflect  the  net  effects  of  temporary
           differences  between the carrying  amounts of assets and  liabilities
           for financial  reporting purposes and the amounts used for income tax
           purposes.  Significant  components  of the Company's net deferred tax
           asset at December 31, 1997 and 1996 which is  considered  noncurrent,
           are as follows:

<TABLE>
<CAPTION>
               Deferred tax assets:                                   1997              1996
                                                                      ----              ----
<S>                                                              <C>                <C>        
                 Net operating loss carryforwards                $ 12,400,000       $ 8,800,000
                 Capitalized start-up costs for tax purposes          578,000           578,000
                 Deferred tax asset valuation allowance           (12,978,000)      (9,378,000)
                                                                 ------------       -----------

                    Net deferred tax asset                       $     -            $      -
                                                                 ============       ===========
</TABLE>

            The  valuation  allowance for deferred tax assets as of December 31,
            1996 and 1995 was $9,378,000 and $6,678,000,  respectively.  The net
            change in the total valuation  allowance for the year ended December
            31, 1997 was an increase of  $3,600,000.  At December 31, 1997,  the
            Company  has  net  operating  loss  carryforwards  of  approximately
            $34,000,000  for tax purposes  which are available to offset federal
            taxable income,  if any,  through 2012. An ownership change pursuant
            to Section 382 of the Internal  Revenue Code  occurred in April 1995
            as a result of a private placement of the Company's common stock and
            warrants.  Accordingly,  utilization of the Company's pre-change net
            operating   loss   carryforward   (approximately   $13,600,000)   is
            restricted to  approximately  $2,220,000  per year,  and the related
            deferred  tax assets have been fully  reserved.  The Company has not
            performed a detailed  analysis to  determine  whether an  additional
            ownership  change under Section 382 of the Internal  Revenue Code of
            1986 occurred  during 1997, but believes that it is very likely that
            such a change  occurred  during  1997.  The  effect of an  ownership
            change would be the imposition of an additional annual limitation on
            the use of NOL carryforwards  attributable to periods before change.
            If the change  occurred in late 1997,  substantially  all of the NOL
            carryforwards would be subject to the limitation.  The amount of the
            annual limitation depends upon the value of the Company  immediately
            before  the  change,  changes  to the  Company's  capital  during  a
            specified period prior to the change,  and an interest rate which is
            published monthly. Due to uncertainty as to the date of an ownership
            change during 1997, the Company has not determined the amount of the
            potential limitation.

10.    CONTINGENCY

            The  Company  is  a  defendant  in  Dr.  Bonnie  S.  Dunbar  v.  E/J
            Development  Corporation,  U-Tech  Medical  Corporation,   Sheffield
            Medical Technologies, Inc. and Douglas R. Eger, No. 97-28899, in the
            District Court of Harris County,  Texas (133rd  Judicial  District).
            The plaintiff in this action asserts breach of contract, fraud and a
            claim for  quantum  meruit  relating  principally  to certain  stock
            options  exercisable  for a total of 40,000  shares of Common  Stock
            issued  in  1992  and  1993 to the  plaintiff  in  consideration  of
            consulting  and  research  services  provided  to the  Company.  The
            plaintiff served as the principal  investigator at Baylor College of
            Medicine in Houston,  Texas on an ovarian  cancer  research  project
            that was funded for  several  years by the  Company.  The  plaintiff
            seeks actual  damages  against  Sheffield and the other  defendants,
            including  Douglas  R.  Eger,  a  former  Chairman  of the  Company,
            together with punitive damages,  attorneys' fees, costs and expenses
            of the lawsuit,  and pre- and post-judgement  interest.  The Company
            has denied the plaintiff's  allegations and is vigorously contesting
            this action.  This action is currently in the discovery  phase.  The
            Company and the plaintiff  have engaged in  settlement  discussions,
            but no agreement has been reached to date.  The Company is currently
            unable  predict  the likely  outcome  of this  action.  However,  an
            unfavorable  decision  could have a material  adverse  effect on the
            business and financial condition of the Company.



                                      F-17
<PAGE>

11.    SUBSEQUENT EVENTS

            On April 15, 1998, the Company entered into an option agreement with
            Zambon Group SpA ("Zambon") of Milan,  Italy for a sublicense to the
            Company's   proprietary  MSI  drug  delivery   system.   Under  this
            contemplated   transaction,   Zambon  will   receive  an   exclusive
            world-wide  marketing and  development  sub-license  for respiratory
            products  to be  delivered  by the MSI system  including  four drugs
            currently  under  development by Sheffield.  Sheffield will maintain
            certain  co-promotion  rights in the U.S. for  respiratory  drugs as
            well as the  world-wide  marketing  and  development  rights for all
            applications  of the MSI  delivery  system  outside the  respiratory
            therapeutic area. As part of this transaction,  Zambon will agree to
            fund all remaining  development  costs relating to these respiratory
            products,  will  pay  Sheffield  an  up-front  fee in the form of an
            equity  investment  as well as  milestone  payments  upon  marketing
            approval  for  each  of  the  four  products  and   royalties   upon
            commercialization.  In addition,  Zambon will provide Sheffield with
            an  interest  free line of credit  upon the  achievement  of certain
            early milestones.  Sheffield is receiving a $650,000 option fee from
            Zambon in the form of an equity investment.  The consummation of the
            sublicensing   transaction  with  Zambon  will  be  subject  to  the
            negotiation by the parties of a definitive sublicensing agreement.

            On April 15, 1998,  the Company  issued 1,250 shares of its Series B
            Cummulative  Convertible  Redeemable  Preferred Stock (the "Series B
            Preferred Stock") in a private  placement for an aggregate  purchase
            price of $1,250,000.  Under the terms of this offering,  the Company
            must  redeem  the  preferred  stock  at  the  time  it  concludes  a
            definitive sub-license agreement on the MSI or other financing.

            On April 15, 1998,  the Company  made the DM 2.0 million  payment to
            Siemens,  A.G.  that was  originally  due in January  1998 under the
            terms of the MSI license  agreement.  This payment was made with the
            proceeds of the Series B Preferred Stock offering

            For the period  January 1, 1998  through  April 15, 1998, a total of
            4,075,797  shares  of  common  stock  were  issued  as a  result  of
            conversion of Series A Preferred Stock. As of April 15, 1998, all of
            the  Series A  Preferred  Stock has been  converted.  For the period
            January 1, 1998 through April 15, 1998, a total of 2,291,798  shares
            of common  stock were issued as a result of partial  conversion  and
            interest payments made on the 6% subordinated convertible debenture.
            As of April 15, 1998,  $447,500 in principal remains to be repaid or
            available for conversion.

                                                                         Annex A


                       SHEFFIELD MEDICAL TECHNOLOGIES INC.

                             1993 STOCK OPTION PLAN
                       (as amended through June 26, 1997)


         1.  PURPOSES OF THE PLAN.  The  purposes of this 1993 Stock Option Plan
are to  attract  and  retain  the best  available  personnel  for  positions  of
responsibility  within the Company, to provide additional incentive to Employees
of the Company, and to promote the success of the Company's business through the
grant of options to  purchase  shares of the  Company's  Common  Stock.  Options
granted hereunder may be either Incentive Stock or Non-Statutory  Stock Options,
at the discretion of the Board.  The type of options  granted shall be reflected
in the terms of written Stock Option  agreements.  The Company  intends that the
Plan  meet the  requirements  of Rule  16b-3 and that  transactions  of the type
specified in  subparagraphs  (c) to (f)  inclusive of Rule 16b-3 by officers and
directors of the Company  pursuant to the Plan will be exempt from the operation
of Section 16(b) of the Exchange Act.  Further,  the Plan is intended to satisfy
the performance-based  compensation exception to the limitation on the Company's
tax deductions  imposed by Section 162(m) of the Code. In all cases,  the terms,
provisions,  conditions  and  limitations  of the Plan  shall be  construed  and
interpreted consistent with the Company's intent as stated in this Section 1.

         2. DEFINITIONS. As used herein, the following definitions shall apply:

                  (a) "BOARD"  shall mean the Board of  Directors of the Company
         or, when appropriate,  the Committee administering the Plan, if one has
         been appointed.

                  (b) "CODE"  shall mean the Internal  Revenue Code of 1986,  as
         amended, and the rules and regulations promulgated thereunder.

                  (c) "COMMON  STOCK" shall mean the common stock of the Company
         described in the Company's Certificate of Incorporation, as amended.

                  (d) "COMPANY" shall mean SHEFFIELD MEDICAL  TECHNOLOGIES INC.,
         a Delaware  corporation,  and shall  include  any parent or  subsidiary
         corporation  of the  Company  as defined  in  Sections  425(e) and (f),
         respectively, of the Code.

                  (e) "COMMITTEE" shall mean the Stock Option Committee composed
         of two or more  directors  who are  Non-Employee  Directors and Outside
         Directors  and who shall be elected by and shall serve at the  pleasure
         of the Board and shall be  responsible  for  administering  the Plan in
         accordance with paragraph (a) of Section 4 of the Plan.

                  (f) "EMPLOYEE"  shall mean key employees,  including  salaried
         officers  and  directors  and other  key  individuals  employed  by the
         Company. The payment of a


<PAGE>



         director's  fee by the Company  shall not be  sufficient  to constitute
         "employment" by the Company.

                  (g) "EXCHANGE  ACT" shall mean the Securities and Exchange Act
                  of 1934, as amended.

                  (h) "FAIR MARKET VALUE" shall mean, with respect to the date a
         given  Option is granted or  exercised,  the value of the Common  Stock
         determined  by the Board in such  manner as it may deem  equitable  for
         Plan  purposes but, in the case of an Incentive  Stock Option,  no less
         than is required by applicable laws or regulations;  provided, however,
         that where  there is a public  market for the  Common  Stock,  the Fair
         Market Value per Share shall be the mean of the bid and asked prices of
         the Common  Stock on the date of grant,  as reported in the WALL STREET
         JOURNAL (or, if not so reported,  as otherwise reported in the National
         Association of Securities  Dealers  Automated  Quotation System) or, in
         the event the Common Stock is listed on the New York Stock  Exchange or
         the  NASDAQ  Stock   Market,   the   American   Stock   Exchange,   the
         NASDAQ/National Market System, the Fair Market Value per Share shall be
         the closing  price on such exchange on the date of grant of the Option,
         as reported in the WALL STREET JOURNAL.

                  (i)  "INCENTIVE  STOCK  OPTION"  shall mean an Option which is
         intended to qualify as an incentive  stock option within the meaning of
         Section 422 of the Code.

                  (j) "NON-EMPLOYEE DIRECTOR" shall mean a non-employee director
         as defined in Rule 16b-3.

                  (k) "NON-STATUTORY STOCK OPTION" shall mean an Option which is
         not an Incentive Stock Option.

                  (l) "OPTION" shall mean a stock option granted under the Plan.

                  (m) "OPTIONED STOCK" shall mean the Common Stock subject to an
         Option.

                  (n)  "OPTIONEE"  shall mean an Employee of the Company who has
         been granted one or more Options.

                  (o)  "OUTSIDE  DIRECTOR"  shall  mean an outside  director  as
         defined  in  Section  162(m) of the Code or the  rules and  regulations
         promulgated thereunder.

                  (p) "PARENT" shall mean a "parent corporation," whether now or
         hereafter existing, as defined in Section 425(e) of the Code.

                  (q) "PLAN" shall mean this 1993 Stock Option Plan.


                                       -2-

<PAGE>
                  (r)  "SHARE"  shall  mean a  share  of the  Common  Stock,  as
         adjusted in accordance with Section 11 of the Plan.

                  (s) "STOCK OPTION  AGREEMENT" shall mean the written agreement
         between  the  Company  and the  Optionee  relating  to the  grant of an
         Option.

                  (t)  "SUBSIDIARY"  shall  mean  a  "subsidiary   corporation,"
         whether now or hereafter existing,  as defined in Section 425(f) of the
         Code.

                  (u) "TAX DATE"  shall mean the date an Optionee is required to
         pay the Company an amount with respect to tax  withholding  obligations
         in connection with the exercise of an option.

         3.  COMMON  STOCK  SUBJECT TO THE PLAN.  Subject to the  provisions  of
Section 11 of the Plan,  the  maximum  aggregate  number of shares  which may be
optioned and sold under the Plan is Three Million  (3,000,000)  Shares of Common
Stock. The Shares may be authorized,  but unissued,  or previously issued Shares
acquired by the Company and held in treasury.

                  If an Option  should  expire or become  unexercisable  for any
reason without having been exercised in full, the unpurchased  Shares covered by
such Option shall, unless the Plan shall have been terminated,  be available for
future  grants of Options.  The maximum  number of Shares that may be subject to
options  granted under the Plan to any individual in any calendar year shall not
exceed  500,000  Shares and the method of counting  such Shares shall conform to
any  requirements  applicable to  performance-based  compensation  under Section
162(m) of the Code or the rules and regulations promulgated thereunder.

         4. ADMINISTRATION OF THE PLAN.

                  (a)      PROCEDURE.

                           (i) The Plan  shall be  administered  by the Board in
                  accordance  with Rule  16b-3  under the  Exchange  Act  ("Rule
                  16b-3");  provided,  however,  that the  Board  may  appoint a
                  Committee to  administer  the Plan at any time or from time to
                  time,  and,  provided  further,  that  if  the  Board  is  not
                  "disinterested"  within the  meaning of Rule  16b-3,  the Plan
                  shall be  administered  by a Committee in accordance with Rule
                  16b-3.

                           (ii) Once appointed,  the Committee shall continue to
                  serve until otherwise directed by the Board. From time to time
                  the Board may increase the size of the  Committee  and appoint
                  additional  members  thereof,  remove members (with or without
                  cause), appoint new members in substitution therefor, and fill
                  vacancies however caused:  provided,  however, that at no time
                  may  any  person  serve  on the  Committee  if  that  person's
                  membership would

                                       -3-

<PAGE>

                  cause  the  Committee   not  to  satisfy  the   "disinterested
                  administration" requirements of Rule 16b-3.

                  (b) POWERS OF THE  BOARD.  Subject  to the  provisions  of the
                  Plan, the Board shall have the authority,  in its  discretion:
                  (i) to grant  Incentive Stock Options and  Nonstatutory  Stock
                  Options;   (ii)  to   determine,   upon   review  of  relevant
                  information  and in accordance with Section 2 of the Plan, the
                  Fair Market Value of the Common Stock;  (iii) to determine the
                  exercise  price  per Share of  Options  to be  granted,  which
                  exercise price shall be determined in accordance  with Section
                  8(a) of the Plan; (iv) to determine the Employees to whom, and
                  the time or times at which,  Options  shall be granted and the
                  number of  Shares to be  represented  by each  Option;  (v) to
                  interpret the Plan; (vi) to prescribe, amend and rescind rules
                  and regulations  relating to the Plan;  (vii) to determine the
                  terms and provisions of each Option granted including, without
                  limitation,  the terms of  exercise  (including  the period of
                  exercisability)  or  forfeiture of Options  granted  hereunder
                  upon  termination of the employment of an Employee;  (viii) to
                  accelerate  or defer  (with the consent of the  Optionee)  the
                  exercise  date of any Option;  (ix) to authorize any person to
                  execute on behalf of the  Company any  instrument  required to
                  effectuate  the grant of an Option  previously  granted by the
                  Board;  (x) to  accept  or  reject  the  election  made  by an
                  Optionee  pursuant to Section 17 of the Plan; and (xi) to make
                  all other determinations deemed necessary or advisable for the
                  administration of the Plan.

                  (c) EFFECT OF BOARD'S DECISION. All decisions,  determinations
                  and interpretations of the Board shall be final and binding on
                  all  Optionees  and any other  holders of any Options  granted
                  under the Plan.

                  (d)  INABILITY  OF COMMITTEE TO ACT. In the event that for any
                  reason the  Committee is unable to act or if the  Committee at
                  the time of any grant,  award or other  acquisition  under the
                  Plan of options or Shares does not consist of two or more Non-
                  Employee  Directors,  then  any  such  grant,  award  or other
                  acquisition  may be approved  or ratified in any other  manner
                  contemplated by subparagraph (d) of Rule 16b-3.

         5.       ELIGIBILITY.

                  (a)  Consistent  with  the  Plan's  purposes,  Options  may be
granted only to Employees of the Company as determined by the Board. An Employee
who has been granted an Option may, if he is otherwise  eligible,  be granted an
additional  Option or Options.  Incentive  Stock  Options may be granted only to
those Employees who meet the  requirements  applicable  under Section 422 of the
Code.


                                       -4-

<PAGE>
                  (b) Unless  otherwise  provided in the applicable Stock Option
Agreement,  all Options  granted to Employees of the Company under the Plan will
be subject to forfeiture  until such time as the Optionee has been  continuously
employed by the Company for one year after the date of the grant of the Options,
and may not be  exercised  prior to such time.  At such time as the Optionee has
been  continuously   employed  by  the  Company  for  one  year,  the  foregoing
restriction  shall lapse and the  Optionee  may exercise the Options at any time
otherwise consistent with the Plan.

                  (c) With respect to Incentive  Stock  Options,  the  aggregate
Fair Market Value (determined at the time the Incentive Stock Option is granted)
of  the  Common  Stock  with  respect  to  which  Incentive  Stock  Options  are
exercisable  for the first time by the employee  during any calendar year (under
all employee benefit plans of the Company) shall not exceed One Hundred Thousand
Dollars ($100,000).

         6. STOCKHOLDER  APPROVAL AND EFFECTIVE DATES. The Plan became effective
upon approval by the Board. No Option may be granted under the Plan after August
30, 2003 (ten years from the effective date of the Plan); provided, however that
the Plan and all  outstanding  Options shall remain in effect until such Options
have expired or until such Options are canceled.

         7. TERM OF  OPTION.  Unless  otherwise  provided  in the  Stock  Option
Agreement,  the term of each  Option  shall be five (5)  years  from the date of
grant  thereof.  In no case shall the term of any  Option  exceed ten (10) years
from the date of grant  thereof.  Notwithstanding  the above,  in the case of an
Incentive  Stock Option  granted to an Employee  who, at the time the  Incentive
Stock Option is granted,  owns ten percent  (10%) or more of the Common Stock as
such amount is  calculated  under  Section  422(b)(6) of the Code ("Ten  Percent
Stockholder"),  the term of the  Incentive  Stock Option shall be five (5) years
from the date of grant  thereof or such  shorter  time as may be provided in the
Stock Option  Agreement.  If an option granted to the Company's  chief executive
officer or to any of the Company's other four most highly  compensated  officers
is intended to qualify as "performance-based"  compensation under Section 162(m)
of the Code,  the  exercise  price of such option shall not be less than 100% of
the Fair Market Value of a Share on the date such option is granted.

         8.       EXERCISE PRICE AND PAYMENT.

                  (a)  EXERCISE  PRICE.  The per  Share  exercise  price for the
         Shares  to be  issued  pursuant  to  exercise  of an  Option  shall  be
         determined by the Board,  but in the case of an Incentive  Stock Option
         shall be no less than one  hundred  percent  (100%) of the Fair  Market
         Value per share on the date of grant, and in the case of a Nonstatutory
         Stock Option  shall be no less than  eighty-five  percent  (85%) of the
         Fair Market Value per share on the date of grant.  Notwithstanding  the
         foregoing,  in the case of an  Incentive  Stock  Option  granted  to an
         Employee who, at the time of the grant of such Incentive  Stock Option,
         is a Ten Percent Stockholder, the per Share exercise price

                                       -5-

<PAGE>
         shall be no less than one hundred ten percent (110%) of the Fair Market
         Value per Share on the date of grant.

                  (b)  PAYMENT.  The  price  of  an  exercised  Option  and  the
         Employee's  portion of any taxes attributable to the delivery of Common
         Stock under the Plan, or portion thereof, shall be paid:

                           (i) In  United  States  dollars  in cash or by check,
                  bank draft or money order payable to the order of the Company;
                  or

                           (ii) At the  discretion  of the  Board,  through  the
                  delivery  of shares of Common  Stock  with an  aggregate  Fair
                  Market Value equal to the option price and withholding  taxes,
                  if any; or

                           (iii) At the  election  of the  Optionee  pursuant to
                  Section  17 and with the  consent  of the  Board  pursuant  to
                  Section 4(b)(x),  by the Company's retention of such number of
                  shares of Common Stock subject to the  exercised  Option which
                  have an aggregate Fair Market Value on the exercise date equal
                  to the Employee's portion of the Company's  aggregate federal,
                  state,  local and  foreign tax  withholding  and FICA and FUTA
                  obligations  with respect to income  generated by the exercise
                  of the Option by Optionee;

                           (iv) By a  combination  of (i), (ii) and (iii) above;
                  or

                           (v) In the manner provided in subsection (c) below.

                  The Board shall  determine  acceptable  methods for  tendering
Common  Stock  as  payment  upon  exercise  of an  Option  and may  impose  such
limitations and prohibitions on the use of Common Stock to exercise an Option as
it deems appropriate.

                  (c) FINANCIAL  ASSISTANCE  TO OPTIONEES.  The Board may assist
         Optionees in paying the exercise  price of Options  granted  under this
         Plan in the following manner:

                           (i) The  extension  of a loan to the  Optionee by the
                  Company; or

                           (ii) Payment by the Optionee of the exercise price in
                  installments; or

                           (iii) A guaranty by the Company of a loan obtained by
                  the Optionee from a third party.

                  The terms of any loans,  installment  payments or  guarantees,
including the interest rate and terms of repayment, and collateral requirements,
if any,  shall be determined by the Board,  in its sole  discretion.  Subject to
applicable margin  requirements,  any loans,  installment payments or guarantees
authorized by the Board pursuant to the Plan may be

                                       -6-

<PAGE>
granted without security,  but the maximum credit available shall not exceed the
exercise price for the Shares for which the Option is to be exercised,  plus any
federal and state income tax liability  incurred in connection with the exercise
of the Option.

         9.       EXERCISE OF OPTION.

                  (a)  PROCEDURE  FOR  EXERCISE;  RIGHTS AS A  STOCKHOLDER.  Any
Option  granted  hereunder  shall be  exercisable  at such  times and under such
conditions  as  determined  by the Board,  including  performance  criteria with
respect to the Company and/or the Optionee,  and as shall be  permissible  under
the terms of the Plan.  Unless otherwise  determined by the Board at the time of
grant,  an Option  may be  exercised  in whole or in part.  An Option may not be
exercised for a fraction of a Share.

                  An Option shall be deemed to be exercised  when written notice
of such exercise has been given to the Company in  accordance  with the terms of
the Option by the person  entitled to exercise  the Option and full  payment for
the Shares with  respect to which the Option is exercised  has been  received by
the  company.  Full  payment  may, as  authorized  by the Board,  consist of any
consideration  and method of payment  allowable  under Section 8(b) of the Plan.
Until the issuance (as  evidenced by the  appropriate  entry on the books of the
Company or of a duly  authorized  transfer  agent of the  Company)  of the stock
certificate evidencing such Shares, no right to vote or receive dividends or any
other rights as a  stockholder  shall exist with respect to the Optioned  Stock,
notwithstanding  the exercise of the Option.  No  adjustment  will be made for a
dividend or other right for which the record date is prior to the date the stock
certificate is issued, except as provided in Section 11 of the Plan.

                  Exercise of an Option in any manner shall result in a decrease
in the number of Shares which thereafter may be available,  both for purposes of
the Plan and for sale  under the  Option,  by the  number of Shares to which the
Option is exercised.

                  (b)  TERMINATION  OF STATUS AS AN EMPLOYEE.  Unless  otherwise
provided in the applicable Stock Option Agreement,  if an Employee's  employment
by the Company is  terminated  for cause,  then any Option held by the  Employee
shall be  immediately  canceled upon  termination of employment and the Employee
shall have no further  rights  with  respect to such  Option.  Unless  otherwise
provided in the Stock  Option  Agreement,  if an  Employee's  employment  by the
Company is terminated  for reasons  other than cause,  and does not occur due to
death or disability,  then the Employee may, with the consent of the Board,  for
ninety  (90) days  after the date he ceases to be an  Employee  of the  Company,
exercise  his Option to the extent  that he was  entitled  to exercise it at the
date of such termination. To the extent that he was not entitled to exercise the
Option at the date of such  termination,  or if he does not exercise such Option
(which he was entitled to exercise)  within the time specified  herein or in the
applicable Stock Option Agreement, the Option shall terminate.

                  (c) DISABILITY.  Unless  otherwise  provided in the applicable
Stock Option Agreement, notwithstanding the provisions of Section 9(b) above, in
the event an Employee is

                                       -7-

<PAGE>
unable to continue his employment  with the Company as a result of his permanent
and total  disability (as defined in Section  22(e)(3) of the Code), he may, but
only within twelve (12) months from the date of termination, exercise his Option
to the extent he was entitled to exercise it at the date of such termination. To
the  extent  that he was not  entitled  to  exercise  the  Option at the date of
termination,  or if he does not exercise  such Option  (which he was entitled to
exercise)  within the time specified  herein or in the  applicable  Stock Option
Agreement, the Option shall terminate.

                  (d)  DEATH.  Unless  otherwise  provided  in the Stock  Option
Agreement,  if an Employee dies during the term of the Option and is at the time
of his death an Employee of the Company who shall have been in continuous status
as an  Employee  since  the date of  grant  of the  Option,  the  Option  may be
exercised at any time within twelve (12) months  following the date of death (or
such  other  period of time as is  determined  by the  Board) by the  Employee's
estate or by a person who  acquired  the right to exercise the Option by bequest
or inheritance, but only to the extent that an Employee was entitled to exercise
the Option on the date of death.  To the extent the Employee was not entitled to
exercise the Option on the date of death, or if the Employee's estate, or person
who acquired the right to exercise  the Option by bequest or  inheritance,  does
not exercise  such Option  (which he was  entitled to exercise)  within the time
specified herein or in the applicable Stock Option  Agreement,  the Option shall
terminate.

         10. NON-TRANSFERABILITY OF OPTIONS. An Option may not be sold, pledged,
assigned,  hypothecated,  transferred or disposed of in any manner other than by
will or by the laws of descent or  distribution,  or  pursuant  to a  "qualified
domestic relations order" under the Code and ERISA, and may be exercised, during
the lifetime of the Optionee, only by the Optionee.

         11.  ADJUSTMENTS UPON CHANGES IN CAPITALIZATION  OR MERGER.  Subject to
any required action by the stockholders of the Company,  the number of shares of
Common Stock  covered by each  outstanding  Option,  and the number of shares of
Common Stock which have been  authorized  for issuance  under the Plan but as to
which no Options have yet been  granted or which have been  returned to the Plan
upon  cancellation or expiration of an Option, as well as the price per share of
Common Stock covered by each such outstanding  Option,  shall be proportionately
adjusted for any  increase or decrease in the number of issued  shares of Common
Stock  resulting  from a stock  split,  reverse  stock  split,  stock  dividend,
combination or  reclassification  of the Common Stock,  or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of  consideration  by the Company;  provided,  however,  that  conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of  consideration."  Such adjustment shall be made by the Board,
whose  determination  in that respect  shall be final,  binding and  conclusive.
Except as  expressly  provided  herein,  no issuance by the company of shares of
stock of any class, or securities convertible into shares of stock of any class,
shall affect and no adjustment by reason thereof,  shall be made with respect to
the number or price of shares of Common Stock subject to an Option.


                                       -8-

<PAGE>
                  In the event of the proposed dissolution or liquidation of the
Company, the Option will terminate immediately prior to the consummation of such
proposed action,  unless otherwise  provided by the Board. The Board may, in the
exercise of its sole discretion in such instances, declare that any Option shall
terminate  as of a date fixed by the Board and give each  Optionee  the right to
exercise  his  Option  as to all or any part of the  Optioned  Stock,  including
Shares as to which the Option would not otherwise be  exercisable.  In the event
of a proposed sale of all or substantially all of the assets of the Company,  or
the merger of the Company with or into another corporation,  the Option shall be
assumed  or  an  equivalent  option  shall  be  substituted  by  such  successor
corporation or a parent or subsidiary of such successor corporation,  unless the
Board  determines,  in the exercise of its sole  discretion  and in lieu of such
assumption or  substitution,  that the Optionee shall have the right to exercise
the option as to all of the  Optioned  Stock,  including  Shares as to which the
Option would not  otherwise be  exercisable.  If the Board makes an Option fully
exercisable  in lieu of  assumption  or  substitution  in the  event of a merger
of`sale of assets,  the Board shall notify the Optionee that the Option shall be
fully  exercisable  for a period of sixty (60) days from the date of such notice
(but not later than the  expiration  of the term of the Option  under the Option
Agreement), and the Option will terminate upon the expiration of such period.

         12. TIME OF GRANTING OPTIONS. The date of grant of an Option shall, for
all purposes,  be the date on which the Board makes the  determination  granting
such Option. Notice of the determination shall be given to each Employee to whom
an Option is so granted within a reasonable time after the date of such grant.

         13. AMENDMENT AND TERMINATION OF THE PLAN.

                  (a)  AMENDMENT  AND  TERMINATION.   The  Board  may  amend  or
         terminate  the Plan from time to time in such respects as the Board may
         deem  advisable;  provided,  however,  that the following  revisions or
         amendments  shall require  approval of the Stockholders of the Company,
         to the extent required by law, rule or regulation:

                           (i) Any  material  increase  in the  number of Shares
                  subject  to  the  Plan,  other  than  in  connection  with  an
                  adjustment under Section 11 of the Plan;

                           (ii) Any material  change in the  designation  of the
                  Employees eligible to be granted Options; or

                           (iii) Any material  increase in the benefits accruing
                  to participants under the Plan.

                  (b) EFFECT OF AMENDMENT OR TERMINATION.  Any such amendment or
         termination  of the Plan shall not affect Options  already  granted and
         such Options  shall remain in full force and effect as if this Plan had
         not been  amended  or  terminated,  unless  mutually  agreed  otherwise
         between the Optionee and the Board,  which agreement must be in writing
         and signed by the Optionee and the Company.

                                       -9-

<PAGE>
         14.  CONDITIONS  UPON  ISSUANCE OF SHARES.  Shares  shall not be issued
pursuant to the exercise of an Option unless the exercise of such Option and the
issuance  and  delivery of such Shares  pursuant  thereto  shall comply with all
relevant provisions of law, including, without limitation, the Securities Act of
1933,  as amended,  the  Exchange  Act,  the rules and  regulations  promulgated
thereunder, and the requirements of any stock exchange upon which the Shares may
then be listed,  and shall be further subject to the approval of counsel for the
Company with respect to such compliance.

                  As a condition to the  exercise of an Option,  the Company may
require the person  exercising  such Option to represent and warrant at the time
of any such exercise that the Shares are being purchased only for investment and
without  any  present  intention  to sell or  distribute  such Shares if, in the
opinion of counsel for the company,  such a representation is required by any of
the aforementioned relevant provisions of law.

                  Inability  of  the  Company  to  obtain   authority  from  any
regulatory body having jurisdiction,  which authority is deemed by the Company's
counsel to be necessary to the lawful issuance and sale of any Shares hereunder,
shall relieve the Company of any liability in respect of the failure to issue or
sell  such  Shares  as to which  such  requisite  authority  shall not have been
obtained.

                  In the case of an  Incentive  Stock  Option,  any Optionee who
disposes of Shares of Common  Stock  acquired  upon the exercise of an Option by
sale or exchange (a) either  within two (2) years after the date of the grant of
the Option  under which the Common Stock was acquired or (b) within one (1) year
after the acquisition of such Shares of Common Stock shall notify the Company of
such disposition and of the amount realized upon such disposition.

         15.  RESERVATION  OF SHARES.  The Company will at all times reserve and
keep  available  such  number of Shares as shall be  sufficient  to satisfy  the
requirements of the Plan.

         16.  OPTION  AGREEMENT.  Options  shall be  evidenced  by Stock  Option
Agreements in such form as the Board shall approve.

         17. WITHHOLDING TAXES. Subject to Section 4(b)(x) of the Plan and prior
to the Tax Date,  the  Optionee  may make an  irrevocable  election  to have the
Company  withhold  from those Shares that would  otherwise be received  upon the
exercise of any Option,  a number of Shares  having a Fair Market Value equal to
the minimum amount necessary to satisfy the Company's federal,  state, local and
foreign tax withholding  obligations and FICA and FUTA  obligations with respect
to the exercise of such Option by the Optionee.

                  An Optionee  who is also an officer of the  Company  must make
the above described election:


                                      -10-

<PAGE>



                  (a) at least six months  after the date of grant of the Option
         (except in the event of death or disability); and

                  (b)      either:

                           (i)      six months prior to the Tax Date, or

                           (ii)  prior  to the Tax Date and  during  the  period
                  beginning  on the third  business day  following  the date the
                  Company  releases its  quarterly or annual  statement of sales
                  and earnings and ending on the twelfth  business day following
                  such date.

         18.      MISCELLANEOUS PROVISIONS.

                  (a) PLAN EXPENSE. Any expense of administering this Plan shall
         be borne by the Company.

                  (b)  USE OF  EXERCISE  PROCEEDS.  The  payment  received  from
         Optionees  from the  exercise of Options  shall be used for the general
         corporate purposes of the Company.

                  (c) CONSTRUCTION OF PLAN. The place of  administration  of the
         Plan shall be in the State of Wyoming, and the validity,  construction,
         interpretation,  administration and effect of the Plan and of its rules
         and  regulations,  and rights relating to the Plan, shall be determined
         in accordance  with the laws of the State of Wyoming  without regard to
         conflict of law principles  and, where  applicable,  in accordance with
         the Code.

                  (d) TAXES.  The  Company  shall be entitled  if  necessary  or
         desirable to pay or withhold the amount of any tax  attributable to the
         delivery of Common Stock under the Plan from other  amounts  payable to
         the Employee  after  giving the person  entitled to receive such Common
         Stock notice as far in advance as practical,  and the Company may defer
         making  delivery  of such  Common  Stock if any such tax may be pending
         unless and until indemnified to its satisfaction.

                  (e)  INDEMNIFICATION.  In  addition  to such  other  rights of
         indemnification  as they may have as members of the Board,  the members
         of the Board shall be indemnified by the Company  against all costs and
         expenses  reasonably  incurred by them in  connection  with any action,
         suit or  proceeding to which they or any of them may be party by reason
         of any action taken or failure to act under or in  connection  with the
         Plan or any Option,  and against all amounts paid by them in settlement
         thereof  (provided  such  settlement is approved by  independent  legal
         counsel  selected by the Company) or paid by them in  satisfaction of a
         judgment in any such  action,  suite or  proceeding,  except a judgment
         based upon a finding of bad faith; provided that

                                      -11-

<PAGE>
         upon the  institution  of any such action,  suit or  proceeding a Board
         member  shall,  in  writing,  give the  Company  notice  thereof and an
         opportunity,  at its own expense,  to handle and defend the same before
         such Board member  undertakes to handle and defend it on her or his own
         behalf.

                  (f)  GENDER.  For  purposes  of this  Plan,  words used in the
         masculine  gender  shall  include  the  feminine  and  neuter,  and the
         singular shall include the plural and vice versa, as appropriate.

                  (g) NO  EMPLOYMENT  AGREEMENT.  The Plan shall not confer upon
         any Optionee any right with respect to  continuation of employment with
         the  Company,  nor shall it  interfere in any way with his right or the
         Company's right to terminate his employment at any time.

                                      -12-


                               SEVERANCE AGREEMENT

         AGREEMENT  made as of the 22nd  day of  December,  1997 by and  between
Sheffield  Pharmaceuticals,  Inc.,  a Delaware  corporation  with its  principal
offices  at 425  South  Woodsmill  Road,  St  Louis,  Missouri  63017-3441  (the
"Company"),  and Douglas Eger residing at 4135 Ventura,  Coconut Grove,  Florida
33133 (the "Employee").

                                    RECITALS

         WHEREAS,  the Company entered into an employment  agreement dated as of
October 1, 1995 with the Employee  relating to the employment of the Employee as
an  executive  officer  of  the  Company,   which  employment  (such  employment
agreement, as it may have been amended, being the Employment Agreement"); and

         WHEREAS, the Company and the Employee have agreed upon the terms of the
Employee's  resignation  as an officer and an employee of the Company and desire
to evidence such terms in this Agreement.

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants hereinafter set forth, the parties hereto agree as follows:

         1.  RESIGNATION.  The  Employee  hereby  resigns  as an  officer of the
Company and as Chairman of the Board of Directors of the Company effective as of
the date hereof.  The Employee  hereby resigns as an employee of the Company and
its subsidiaries effective as of January 1, 1998.

         2.  SEVERANCE.  The Company shall pay the Employee  severance  payments
totaling $135,000 payable in six equal  installments of $22,500  commencing with
the first  installment  to be paid on January 31, 1998 and with each  subsequent
installment  to be paid  monthly  thereafter  on the last  day of each  calendar
month.  The Company  shall deduct (and shall  therefor not pay to the  Employee)
$2,500 from each such  installment,  which deducted  amounts shall be applied to
reduce  outstanding  amounts due to the Company under the promissory note of the
Employee  dated April 4, 1997 issued to the  Company in the  original  principal
amount of $80,000 (the "$80,000 Note").  The $2,500  deductions shall be applied
first to the  reduction of  outstanding  principal  and then to the reduction of
outstanding  interest  and any other  amounts  payable  under the $80,000  Note.
Company and Employee acknowledge that $80,000.00 principal amount and $ 4,593.97
of  accrued  interest  remain  outstanding  under the  $80,000  Note on the date
hereof.  In the event of the  occurrence  of a Change of Control,  the remaining
balance of the $135,000 in severance  payments shall become  immediately due and
payable by the Company. As used in this paragraph, "Change of Control" means (i)
the sale, lease, exchange


<PAGE>

or other transfer of all or substantially  all (50% or more) of the consolidated
assets of the  Company to any  person or entity or group of persons or  entities
acting in concert as a partnership or other group (a "Group of Persons") or (ii)
the merger,  consolidation or other business  combination of the Company with or
into another  corporation  with the effect that the  shareholders of the Company
immediately  following the merger,  consolidation or other business  combination
hold 50% or less of the combined voting power of the then outstanding securities
of the surviving  corporation  of such merger,  consolidation  or other business
combination having the right to vote in the election of directors.  The Employee
confirms  that  except  as set  forth  in this  Agreement,  the  Company  has no
obligations to make any payments to the Employee of any nature.

         3. NOTE  SATISFACTION.  (a) Employee agrees to tender and assign to the
Company a stock certificate  representing  10,200 shares of the Company's common
stock  within  10 days of the date  hereof.  Such  certificate  shall be  freely
tradeable  (without  transfer  restrictions).  Such stock  certificate  shall be
delivered by Employee  with stock powers  executed in blank  covering the shares
represented  by such  certificate.  The  delivery of such stock  certificate  by
Employee shall  constitute the Employee's  representation  and warranty that the
shares of common stock represented by such certificate are owned by the Employee
free and clear of any liens or  encumbrances.  Upon the  delivery  of such stock
certificate,  the  Employee's  obligations  under  the  promissory  note  of the
Employee  dated July 31, 1996 issued to the Company in the  remaining  principal
amount of $20,000 shall be deemed satisfied in full.

                  (b) In the event that the Company fails to pay any installment
of the severance payment when due under paragraph 2 above, the remaining amounts
of principal and interest  payable under the Note will  automatically be reduced
by 25% for each  full ten (10) day  period  that  such  failure  to  timely  pay
continues after such due date.

         4. BOARD  MEMBERSHIP.  The  Employee  agrees not to seek  election as a
director of the Company at the next annual  meeting of the  stockholders  of the
Company.  The Company  acknowledges  that the  Employee is under no  contractual
obligation  to continue as a director of the Company and has the right to resign
as a director of the Company at any time.

         5. SATISFACTION OF EMPLOYMENT AGREEMENT. The Employee acknowledges that
the  Company  has no  further  obligations  to  Employee  under  the  Employment
Agreement.

         6.  AMENDMENT  AND  RESTATEMENT  OF NOTE.  Upon the  execution  of this
Agreement by the Employee and the delivery of the stock certificate representing
10,200 shares of the Company's  common stock pursuant to paragraph 3 above,  the
Company agrees to the

                                       -2-

<PAGE>

amendment and restatement of the $80,000 Note,  effective as of the date hereof,
to provide  (a) for the  payment of the  outstanding  principal  amount  thereof
(after the deductions from the severance payments pursuant to paragraph 2 above)
in six equal  installments  on the last day of each March,  June,  September and
December commencing September 30, 1998, together with accrued interest, with any
remaining  outstanding  principal  and  accrued  interest  on the  $80,000  Note
becoming due and payable on December 31, 1999 (b) for default  interest upon the
failure to timely repay any amount payable by the Employee under the amended and
restated $80,000 Note at an interest rate of 15% per annum and (c) prepayment of
the $80,000 Note without  prepayment  penalty or premium.  Except as provided in
the  preceding  sentence,  the $80,000 Note will remain  unchanged.  The Company
agrees to promptly prepare and deliver to the Employee for his execution amended
and restated  $80,000 Note  reflecting  the  above-mentioned  amendments and the
Employee  agrees to promptly  execute and return to the Company such amended and
restated $80,000 Note.

         7. PLEDGE OF STOCK.  Within 15 days of the date hereof,  Employee  will
transfer  30,000  shares of freely  tradeable  (without  transfer  restrictions)
common  stock of the Company to an account with  Merrill  Lynch.  At the time of
such transfer,  such shares shall be owned by the Employee free and clear of any
liens or  encumbrances.  The Employee will execute a letter in the form attached
hereto as Exhibit A, will cause an authorized representative of Merrill Lynch to
execute such letter and shall deliver such letter  (executed by the Employee and
by an authorized  officer on behalf of Merrill Lynch) within 15 days of the date
hereof.

         8.  CONFIDENTIALITY.  (a) The  Employee  agrees to hold in a  fiduciary
capacity  for the benefit of the Company and its  subsidiaries  all  information
developed  or  originated  by the Company  (or by the  Employee on behalf of the
Company)  concerning the Company that is confidential or proprietary,  including
without  limitation,   financial,  technology  development  and  other  business
information,  contracts,  trade  secrets  and patent and  trademark  information
("Confidential Information"),  and he shall not, at any time during the two year
period  following  the date of this  Agreement,  use,  disclose  or divulge  any
Confidential  Information to any person, firm, corporation or other entity other
than to the Company and its subsidiaries or their respective designees.

                           (b)   Notwithstanding   anything   to  the   contrary
contained herein,  the Employee's  obligations under paragraph 8(a) hereof shall
not apply to any information which:

                  (i) is or  becomes  available  to the  public  other than as a
         result of wrongful disclosure by the Employee;


                                       -3-

<PAGE>
                  (ii)  becomes  available  to the  Employee  subsequent  to his
         employment  by the  Company  on a  nonconfidential  basis from a source
         other  than the  Company  or its  agents  which  source  has a right to
         disclose such information; or

                  (iii) results from research and development  and/or commercial
         operations at any time by or on behalf of any person,  company or other
         entity with which or with whom the Employee shall become associated (in
         a manner consistent with the terms of this Agreement) subsequent to his
         employment by the Company or its agents  totally  independent  from any
         disclosure from the Company or its agents.

                           (c)   Notwithstanding   anything   to  the   contrary
contained in this  paragraph 8, in the event that the Employee  becomes  legally
compelled to disclose any  Confidential  Information,  the Employee will provide
the Company with prompt  notice so that the Company may seek a protective  order
or other  appropriate  remedy.  In the event that such protective order or other
remedy is not  obtained,  the  Employee  shall  furnish  only such  Confidential
Information which is legally required to be disclosed.

         9. INDEMNITY. The Company agrees to indemnify the Employee in the event
that he is a party  or is  threatened  to be  made a  party  to any  threatened,
pending  or  completed   action  or   proceeding,   whether   civil,   criminal,
administrative or investigative,  by reason of the fact that the Employee was an
officer or director of the Company against all out-of-pocket expenses (including
reasonable attorney's fees and disbursements), judgments, fines and amounts paid
in  settlement  actually and  reasonably  incurred by the Employee in connection
with the action or proceeding, PROVIDED that his actions did not involve willful
misconduct  or gross  negligence.  The  Employee  shall not settle any action or
proceeding subject to  indemnification  under this paragraph 9 without the prior
written  consent  of the  Company,  which  consent  shall  not  be  unreasonably
withheld.

         10.  RELEASES.  (a) The Employee  hereby  releases and  discharges  the
Company and all of its directors,  officers, employees, agents, subsidiaries and
affiliates  and its  successors  and assigns  from any and all claims,  actions,
suits, debts, accounts,  contracts,  agreements,  damages, judgments and demands
whatsoever,  in law or equity,  that the Employee ever had, now has or hereafter
can,  shall or may, have for,  upon, or by reason of any matter,  cause or thing
whatsoever  from the  beginning  of the  world  to the  date of this  Agreement.
Notwithstanding  the foregoing,  this release shall not apply to any rights that
the Employee has under this  Agreement.  This release is irrevocable and may not
be changed orally.

                  (b) The Company  hereby  releases and  discharges the Employee
and his successors and assigns from any and all claims,

                                       -4-

<PAGE>

actions, suits, debts, accounts, contracts,  agreements,  damages, judgments and
demands  whatsoever,  in law or equity,  that the Company  ever had,  now has or
hereafter can,  shall or may, have for, upon, or by reason of any matter,  cause
or  thing  whatsoever  from  the  beginning  of the  world  to the  date of this
Agreement.  Notwithstanding  the foregoing,  this release shall not apply to (i)
any rights that the Company has under (i) this Agreement,  (ii) the $80,000 Note
and (iii) the Pledge  Agreement  dated April 4, 1997 made by the Employee to the
Company. This release is irrevocable and may not be changed orally.

         11. GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware.

         12.  MISCELLANEOUS.  (a) The Company  confirms that there are currently
outstanding  stock  options  evidenced  by written  agreements  that provide the
Employee with the right to acquire 500,000 shares of the Company's common stock,
which agreements provide for a term of exercise of such options ending in 2002.

                  (b) The Employee  confirms that he has consulted  with his own
attorney  regarding his rights and  obligations  under this  Agreement  prior to
executing this Agreement.

                  (c) If any  provision of this  Agreement is  determined  to be
invalid,  illegal or unenforceable by any court of competent  jurisdiction,  the
remaining  provisions  of this  Agreement  shall remain in full force and effect
provided that the economic and legal substance of the transactions  contemplated
is not affected in any manner adverse to any party.

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement to be duly executed as of the day and year first above written.


                                                 SHEFFIELD PHARMACEUTICALS, INC.


                                                 By:
                                                    ----------------------------
                                                    Loren G. Peterson, CEO



                                                    ----------------------------
                                                    DOUGLAS R. EGER



                                       -5-

<PAGE>
                                                          Exhibit A to Severance
                                                          Agreement

                         SHEFFIELD PHARMACEUTICALS,INC.
                          425 WOODSMILL ROAD, SUITE 270
                         ST. LOUIS, MISSOURI 63017-3441
                                 (314) 579-9899

                                                              [Date]
[MERRILL LYNCH]
[Address]
Attention: __________

                  You are  hereby  advised  that  Douglas R. Eger  ("Eger")  has
granted Sheffield Pharmaceuticals,  Inc. ("Sheffield") a first priority security
interest  in 30,000  shares of  common  stock,  par  value  $.01 per  share,  of
Sheffield ("Common Stock") held in his name in account no.  ______________  (the
"Eger Account") at [Merrill Lynch] ("Merrill Lynch") as security for a loan made
by Sheffield to Eger.

                  By signing below,  (i) you acknowledge that Merrill Lynch is a
licensed  broker-dealer and that Merrill Lynch holds at least ___________ shares
of Common  Stock in the Eger  Account  and that  such  shares  are not,  to your
knowledge,  subject to any lien or security  interest  (other than the  security
interest granted to Sheffield),  (ii) you agree to evidence Sheffield's security
interest in such 30,000 shares of Common Stock by  appropriate  notation in your
books and records (iii) you agree not to sell or otherwise  transfer such shares
without prior written  approval of Sheffield and (iv) you agree to transfer such
shares upon receipt of written  instructions  of Sheffield  in  connection  with
Sheffield's enforcement of its security interest, which instructions shall state
that Sheffield is exercising its rights in connection  with a default by Eger in
his  obligation to repay  certain  indebtedness  owed to  Sheffield.

                                          Very truly yours,

                                          SHEFFIELD PHARMACEUTICALS, INC.

                                          By:
                                             -----------------------------------
                                             Judy Roeske Bullock
                                             Vice President and CFO

                                          ACKNOWLEDGED AND AGREED:


                                          --------------------------------------
                                         Douglas R. Eger

ACKNOWLEDGED AND AGREED:

[MERRILL LYNCH]


- -------------------------------
Name:
Title:

                          AMENDED EMPLOYMENT AGREEMENT

         AGREEMENT  made as of the  15th  day of  October,  1997 by and  between
Sheffield  Pharmaceuticals,  Inc.,  a Delaware  corporation  with its  principal
offices  at 425  South  Woodsmill  Road,  St  Louis,  Missouri  63017-3441  (the
"Company"),  and George Lombardi  residing at 106 Byrd Avenue,  Bloomfield,  New
Jersey 07003 (the "Employee").

                                    RECITALS

         WHEREAS,  the Company entered into an employment  agreement dated as of
September 7, 1995 with the Employee  relating to the  employment of the Employee
as Vice President and Chief Financial  Officer of the Company,  which employment
agreement was amended by amendment  dated  September  22, 1996 (such  employment
agreement, as so amended, being the Employment Agreement"); and

         WHEREAS, the Company and the Employee have agreed upon the terms of the
Employee's  resignation  as an officer and an employee of the Company and desire
to evidence such terms in this Agreement Amendment.

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants  hereinafter set forth, the parties hereto agree that the terms of the
Employment Agreement are hereby supplemented as follows:

         1.  RESIGNATION.  The  Employee  agrees to resign as an  officer of the
Company  and its  subsidiaries  upon the  request of the  Chairman  or the Chief
Executive  Officer of the Company (the "CEO")  (which  request shall not be made
before October 31, 1997).  The Company agrees to enter into amended and restated
option  agreement on October 15, 1997 amending the option letter agreement dated
September 7, 1995 between the Company and the Employee (relating to the grant of
an option to purchase  100,000 shares of the Company's  common stock)  providing
for an extension of the expiration date of such option to March 31, 2002.

         2.  SEVERANCE.  The Company shall pay the Employee  severance  payments
totaling  $65,000 in six equal  installments  of $10,833.33  commencing with the
first  installment  to be paid on  November  15,  1997 and with each  subsequent
installment  to be paid  bi-monthly  thereafter  on the dates when the Company's
regular payroll payments are paid. Such severance payments become payable by the
Company  upon  Employee's  resignation  as an  officer  of the  Company  and its
subsidiaries on or after October 31, 1997. The severance payable to the Employee
under this paragraph shall be in lieu of any severance payment otherwise payable
under Section 11(b) of the Employment Agreement).

<PAGE>
         3. EMPLOYMENT AFTER RESIGNATION. (a) The Employee agrees to continue to
serve as an employee of the Company  until  November 15, 1997  devoting his full
working day to Company  matters  assigned to him by the CEO or the Company's new
Chief  Financial  Officer (the "New CFO").  It is understood that the Employee's
principal duties during this period shall be to (i) prepare the Company's report
on Form 10-Q for the quarter ended  September 30, 1997 under the  supervision of
the New CFO and  (ii)  familiarize  the New CFO  with  the  Company's  financial
reporting  and  accounting  practices and the  Company's  files.  Subject to the
following sentence,  the Employee shall perform his duties either from an office
in New York City provided to the Employee by the Company or from his home in New
Jersey,  as  determined  by the CEO. It is  understood  that the Employee may be
required to travel to the Company's offices in St.
Louis, Missouri, to perform his duties hereunder.

         (b) The  Employee  agrees to resign as an  employee  of the  Company on
November 15, 1997.  The Employee  agrees to serve as a consultant to the Company
from November 15, 1997 to and including  December 31, 1997. The Employee  agrees
to devote up to 2/3 of his working day to Company matters assigned to him by the
CEO or the CFO during this period.

         4. COMPENSATION. (a) As compensation for his services to be provided to
the Company  pursuant to Section 3(a) above,  the Company shall, on November 15,
1997,  forgive  $12,800 of the  principal  amount  payable to the Company by the
Employee under the Amended and Restated $42,800  Promissory Note of the Employee
payable to the Company dated July 31, 1997 (the "Note").

         (b) As compensation  for his consulting  services to be provided to the
Company  pursuant to Section 2(b) above, on December 31, 1997, the Company shall
forgive  an  additional  $10,000 of the  principal  amount of the Note and shall
agree  to an  amendment  and  restatement  of the  Note to  provide  for (i) the
principal  reductions  referred to in this Section 3, (ii) the  repayment of the
principal  amount of the Note in  installments  of $2,500 each, plus accrued and
unpaid  interest,  on a quarterly basis  commencing  December 31, 1997, with the
final installment being due September 30, 1999, and (iii) a mandatory prepayment
of the Note in the event that the  Employee  sells any of the  Company's  common
stock held by him on the date hereof.

         (c) The compensation payable to the Employee under this paragraph shall
constitute  the only  compensation  payable  under the  Employment  Agreement in
respect of services to be provided by the  Employee  after  October 15, 1997 and
shall be  payable in lieu of any other  compensation  (including  any  severance
payment otherwise payable under Section 11(b) of the Employment  Agreement) that
would otherwise be payable by the Company  pursuant to the Employment  Agreement
after such date.

                                       -2-

<PAGE>
         5. BENEFITS.  The Employee shall continue to receive all benefits under
Section 5 of the  Employment  Agreement  (but only to the extent the Employee is
receiving  such  benefits as of the date hereof)  through  November 15, 1997, at
which time all such benefits shall terminate except as provided in this Section.
The Company shall continue to maintain  Employee's  benefits under the Company's
existing  health  and  medical  plans  and pay the  related  insurance  premiums
currently paid by the Company for the Employee's  coverage  through  January 31,
1998.  Thereafter,  the Employee  shall have the option to continue  such health
insurance coverage at his own expense under applicable "COBRA" regulations.

         6. RELEASE. The Employee hereby releases and discharges the Company and
all of its directors,  officers,  employees, agents, subsidiaries and affiliates
and its successors and assigns from any and all claims,  actions,  suits, debts,
accounts, contracts,  agreements,  damages, judgments and demands whatsoever, in
law or equity,  that the Employee ever had, now has or hereafter  can,  shall or
may, have for, upon, or by reason of any matter,  cause or thing whatsoever from
the beginning of the world to the date of this  Agreement.  Notwithstanding  the
foregoing,  this  release  shall not apply to any rights that the  Employee  has
under this  Agreement  Amendment.  This  release is  irrevocable  and may not be
changed orally.

         7.  MISCELLANEOUS.  The Company  shall  provide the Employee with a fax
machine to be used at the Employee's  home. The Company shall permit Employee to
retain  ownership of such fax machine after his  resignation in accordance  with
Section 2(a) above.  This Agreement  Amendment shall constitute a supplement and
amendment  to the  Employment  Agreement.  To the  extent  that  the  Employment
Agreement and this Agreement Amendment shall conflict in any respect,  the terms
of this Agreement Amendment shall be deemed the governing terms.

         IN WITNESS  WHEREOF,  the parties  hereto  have  caused this  Agreement
Amendment to be duly executed as of the day and year first above written.


                                             SHEFFIELD PHARMACEUTICALS, INC.



                                             By:
                                                --------------------------------
                                                Loren G. Peterson, CEO



                                                --------------------------------
                                                George Lombardi


                                       -3-



                              EMPLOYMENT AGREEMENT

                  AGREEMENT  made as of the 17th day of November,  1997,  by and
between  Sheffield  Pharmaceuticals,  Inc.,  a  Delaware  corporation  with  its
principal  offices at 425 South Woodsmill Road,  Suite 270, St. Louis,  Missouri
63017-3441 (the  "Corporation"),  and Judy Roeske Bullock, who currently resides
at 3850 35th Avenue Court, Moline, Illinois 61265 ("Executive").

                              W I T N E S S E T H :

                  WHEREAS,   the  Corporation   desires  to  employ  and  retain
Executive as its Vice President - Finance and  Administration,  Chief  Financial
Officer  and  Secretary,  upon the terms and subject to the  conditions  of this
Agreement; and

                  NOW,  THEREFORE,  in  consideration  of the  premises  and the
mutual covenants hereinafter set forth, the parties hereto agree as follows:

                  1.  EMPLOYMENT OF EXECUTIVE.  The  Corporation  hereby employs
Executive as its Vice President - Finance and  Administration,  Chief  Financial
Officer and Secretary, to perform the duties and responsibilities  traditionally
incident to such  office,  subject at all times to the control and  direction of
the Board of Directors of the Corporation.

                  2. ACCEPTANCE OF EMPLOYMENT; OFFICES; TIME AND ATTENTION, ETC.
(a) Executive  hereby  accepts such  employment  and agrees that  throughout the
period of her employment  hereunder,  except as hereinafter  provided,  she will
devote her full  business and  professional  time in utilizing  her business and
professional expertise, with proper attention,  knowledge and skills faithfully,
diligently  and to the best of her ability in furtherance of the business of the
Corporation  and its  subsidiaries  and will perform the duties  assigned to her
pursuant to Paragraph 1 hereof. As Vice President - Finance and  Administration,
Chief  Financial  Officer  and  Secretary,  Executive  shall also  perform  such
specific  duties  and shall  exercise  such  specific  authority  related to the
management of the day-to-day  operations of the Corporation and its subsidiaries
as may be  reasonably  assigned to  Executive  from time to time by the Board of
Directors of the Corporation.

                  (b)  Executive  shall at all times be subject to,  observe and
carry out such rules, regulations,  policies, directions and restrictions as the
Board of Directors of the Corporation shall from time to time establish.  During
the  period of her  employment  hereunder,  Executive  shall  not,  directly  or
indirectly,  accept employment or compensation  from, or perform services of any
nature  for,  any  business  enterprise  other  than  the  Corporation  and  its
subsidiaries. Notwithstanding the foregoing in this Paragraph 2, Executive shall
not be precluded from (i) engaging in  recreational,  eleemosynary,  educational
and other  activities,  which  activities do not  materially  interfere with her
duties  hereunder and shall occur during  vacations,  holidays and other periods
outside of business


<PAGE>
hours or (ii) serving as an independent director on the board of directors of up
to three for-profit corporations,  PROVIDED,  HOWEVER, that Executive's election
or appointment as a director to any such board of directors  shall be subject to
the prior written approval of the Chief Executive Officer of the Corporation and
shall not materially interfere with her duties hereunder.

                  3. TERM.  Except as  otherwise  provided  herein,  the term of
Executive's  employment  hereunder  shall  commence on the date hereof and shall
continue to and  including  November  17,  2000.  Unless  terminated  earlier in
accordance with the terms hereof, this Agreement shall automatically be extended
for one or more  additional  consecutive  one year  terms  unless  either  party
notifies  the other party in writing at least 90 days before the end of the then
current term (including the initial term) of its or her desire to terminate this
Agreement. The last day of the term of this Agreement pursuant to this Paragraph
3 (including any early termination  pursuant to the terms hereof) is referred to
herein as the "Termination Date."

                  4.   COMPENSATION.   (a)  As  compensation  for  her  services
hereunder,  the  Corporation  shall pay to Executive (i) a base annual salary at
the rate of  $150,000,  payable in equal  installments  in  accordance  with the
normal payroll practices of the Corporation but in no event less frequently than
semi-monthly,  and (ii) such incentive  compensation and bonuses, if any, as the
Board of Directors of the  Corporation in its absolute  discretion may determine
to award Executive (it being understood that this Agreement shall in no event be
construed to require the payment to Executive of any incentive  compensation  or
bonuses). All compensation paid to Executive shall be subject to withholding and
other employment taxes imposed by applicable law.

                  (b)  During the period of  Executive's  employment  hereunder,
Executive  shall not be entitled to any  additional  compensation  for rendering
employment  services to  subsidiaries  of the  Corporation or for serving in any
office of the Corporation or any of its  subsidiaries to which she is elected or
appointed.

                  5. STOCK OPTIONS. As additional  compensation for her services
hereunder,  the  Corporation  shall  grant to  Executive  an  option  under  the
Corporation's  1993 Stock Option Plan (the "Plan") to acquire a total of 130,000
shares of the Corporation's common stock at an exercise price per share equal to
the  closing  sale price of the  Corporation's  common  stock as reported by the
American Stock Exchange on the date hereof,  with the terms of such option to be
evidenced  by an option  letter  agreement  in the form  annexed as Exhibit  "A"
hereto.

                  6. ADDITIONAL BENEFITS; VACATION. (a) In addition to such base
salary,  Executive shall receive and be entitled to  participate,  to the extent
she is eligible under the terms and conditions  thereof,  in any profit sharing,
pension, retirement, hospitalization,  disability, medical service, insurance or
other

                                       -2-

<PAGE>
employee  benefit  plan  generally  available to the  executive  officers of the
Corporation  that may be in  effect  from  time to time  during  the  period  of
Executive's  employment  hereunder.  The  Corporation  agrees to cover Executive
under  any  directors'  and  officers'   liability  policy   maintained  by  the
Corporation.

                  (b) Executive  shall be paid a one-time  relocation  allowance
equal to 15% of her base annual salary ($22,500).

                  (c)  Executive  shall  be  entitled  to four (4)  weeks'  paid
vacation in respect of each 12-month  period  during the term of her  employment
hereunder,  such vacation to be taken at times  mutually  agreeable to Executive
and the Board of Directors of the Corporation.

                  (d)  Executive  shall be entitled to recognize as holidays all
days recognized as such by the Corporation.

                  7. REIMBURSEMENT OF EXPENSES.  The Corporation shall reimburse
Executive in accordance  with  applicable  policies of the  Corporation  for all
expenses  reasonably  incurred by her in connection  with the performance of her
duties hereunder and the business of the Corporation, upon the submission to the
Corporation of appropriate receipts or vouchers.

                  8.   RESTRICTIVE   COVENANT.   (a)  In  consideration  of  the
Corporation's  entering into this  Agreement,  Executive  agrees that during the
period of her  employment  hereunder  and, in the event of  termination  of this
Agreement (i) by the Corporation upon Executive  becoming Disabled (as that term
is defined in Paragraph 13 hereof),  (ii) by the  Corporation for Cause (as that
term is defined in Paragraph 14 hereof) or (iii) by Executive otherwise than for
Employer Breach (as that term is defined in Paragraph 15 hereof),  for a further
period of six months  thereafter,  she will not (x) directly or indirectly  own,
manage,  operate,  join,  control,  participate  in,  invest  in,  whether as an
officer, director, employee, partner, investor or otherwise, any business entity
that is engaged in a directly  competitive  business (as hereinafter defined) to
that of the Corporation or any of its  subsidiaries  within the United States of
America,  (y)  for  herself  or on  behalf  of any  other  person,  partnership,
corporation  or entity,  call on any customer of the  Corporation  or any of its
subsidiaries  for the purpose of soliciting  away,  diverting or taking away any
customer from the  Corporation  or its  subsidiaries,  or (z) solicit any person
then engaged as an employee,  representative,  agent,  independent contractor or
otherwise by the Corporation or any of its subsidiaries, to terminate her or her
relationship  with the Corporation or any of its  subsidiaries.  For purposes of
this Agreement, the term "directly competitive business" shall mean any business
that  is  then  involved  in  the  research,   development,   manufacturing   or
commercialization in any way of any product,  compound, device or method that is
or becomes a part of the  Corporation's  business or the  business of any of its
subsidiaries  during  Executive's  employment by the  Corporation  or any of its
subsidiaries. Nothing contained in this Agreement shall be deemed

                                       -3-

<PAGE>
to prohibit Executive from investing her funds in securities of an issuer if the
securities  of such  issuer  are listed  for  trading  on a national  securities
exchange or are traded in the  over-the-counter  market and Executive's holdings
therein  represent  less  than 10% of the total  number  of shares or  principal
amount of the securities of such issuer outstanding.

                  (b)  Executive   acknowledges  that  the  provisions  of  this
Paragraph 8 are reasonable and necessary for the protection of the  Corporation,
and that each provision, and the period or periods of time, geographic areas and
types and scope of restrictions on the activities  specified herein are, and are
intended to be, divisible.  In the event that any provision of this Paragraph 8,
including any sentence,  clause or part hereof,  shall be deemed contrary to law
or invalid or unenforceable in any respect by a court of competent jurisdiction,
the  remaining  provisions  shall not be  affected,  but  shall,  subject to the
discretion of such court, remain in full force and effect.

                  9.   CONFIDENTIAL INFORMATION.

                  (a)  Executive  shall  hold in a  fiduciary  capacity  for the
benefit of the Corporation and its subsidiaries  all  confidential  information,
knowledge and data relating to or concerned with its operations, sales, business
and affairs,  and she shall not, at any time during her employment hereunder and
for two  years  thereafter,  use,  disclose  or  divulge  any such  information,
knowledge  or  data  to any  person,  firm  or  corporation  other  than  to the
Corporation and its subsidiaries or their respective  designees or except as may
otherwise be reasonably  required or desirable in  connection  with the business
and affairs of the Corporation and its subsidiaries.

                  (b) Notwithstanding anything to the contrary contained herein,
Executive's  obligations  under  Paragraph  9(a)  hereof  shall not apply to any
information which:

                  (i) becomes rightfully known to Executive  subsequent or prior
         to her employment by the Corporation;

                  (ii) is or becomes  available  to the  public  other than as a
         result of wrongful disclosure by Executive;

                  (iii)  becomes  available  to  Executive   subsequent  to  her
         employment by the Corporation on a nonconfidential  basis from a source
         other than the  Corporation  or its agents  which source has a right to
         disclose such information; or

                  (iv) results from research and development  and/or  commercial
         operations at any time by or on behalf of any person,  company or other
         entity with which or with whom Executive shall become  associated (in a
         manner  consistent with the terms of this Agreement)  subsequent to her
         employment by the  Corporation or its agents totally  independent  from
         any disclosure from the Corporation or its agents.

                                       -4-

<PAGE>
                  (c) Notwithstanding anything to the contrary contained herein,
in  the  event  that  Executive   becomes  legally  compelled  to  disclose  any
confidential  information,  Executive will provide the  Corporation  with prompt
notice so that the Corporation may seek a protective order or other  appropriate
remedy. In the event that such protective order or other remedy is not obtained,
Executive  shall  furnish only such  confidential  information  which is legally
required to be disclosed.

                  10.  INTELLECTUAL  PROPERTY.  Any  idea,  invention,   design,
written  material,  manual,  system,  procedure,  improvement,   development  or
discovery  conceived,  developed,  created  or made by  Executive  alone or with
others,  during the period of her  employment  hereunder  and  applicable to the
business  of  the  Corporation  or  any  of  its  subsidiaries,  whether  or not
patentable or registrable,  shall become the sole and exclusive  property of the
Corporation or such  subsidiary.  Executive shall disclose the same promptly and
completely to the  Corporation  and shall,  during the period of her  employment
hereunder  and at any  time  and  from  time  to  time  hereafter  at no cost to
Executive (i) execute all documents  reasonably requested by the Corporation for
vesting in the Corporation or any of its  subsidiaries  the entire right,  title
and interest in and to the same, (ii) execute all documents reasonably requested
by the  Corporation for filing and prosecuting  such  applications  for patents,
trademarks,  service  marks and/or  copyrights as the  Corporation,  in its sole
discretion,  may  desire  to  prosecute,  and  (iii)  give the  Corporation  all
assistance  it  reasonably  requires,  including  the giving of testimony in any
suit,  action or  proceeding,  in order to  obtain,  maintain  and  protect  the
Corporation's right therein and thereto.

                  11.  EQUITABLE  RELIEF.  The parties hereto  acknowledge  that
Executive's  services  are  unique  and  that,  in the  event of a  breach  or a
threatened  breach by Executive of any of her obligations  under Paragraphs 8, 9
or 10 this Agreement,  the Corporation shall not have an adequate remedy at law.
Accordingly,  in the event of any such breach or threatened breach by Executive,
the Corporation shall be entitled to such equitable and injunctive relief as may
be  available  to  restrain  Executive  and  any  business,  firm,  partnership,
individual,  corporation  or entity  participating  in such breach or threatened
breach from the  violation  of the  provisions  of  Paragraph 8, 9 or 10 hereof.
Nothing herein shall be construed as prohibiting the  Corporation  from pursuing
any other  remedies  available at law or in equity for such breach or threatened
breach,  including the recovery of damages and the immediate  termination of the
employment of Executive hereunder, if and to the extent permitted hereunder.

                  12.  TERMINATION  OF  AGREEMENT;  TERMINATION  OF  EMPLOYMENT;
SEVERANCE;  SURVIVAL.  (a) This Agreement and Executive's  employment  hereunder
shall terminate upon the first to occur of the following: (i) Executive becoming
Disabled  (as that term is defined in  Paragraph  13 hereof);  (ii)  Executive's
death; (iii) termination of Executive's  employment by the Corporation for Cause
or pursuant to subparagraph (b) of this Paragraph 12; (iv) termination of

                                       -5-

<PAGE>
Executive's  employment  for  Employer  Breach and (v) the  termination  of this
Agreement  at the end of the  term of this  Agreement  on the  Termination  Date
pursuant to Paragraph 3.

                  (b) Notwithstanding anything to the contrary contained in this
Agreement,  in the event of the termination of the Executive's employment by the
Corporation  for any reason  (other than for Cause),  Executive  shall be paid a
severance  payment equal to 50% of  Executive's  then current annual base salary
payable in six equal  monthly  installments,  with the first  installment  being
payable on the date  falling  two weeks after the date of such  termination  and
each  additional  installment  being paid every month after such date until such
severance is paid in full. In the event of such  termination of the  Executive's
employment by the Corporation (other than for Cause), the Corporation shall have
no further  obligation  to the  Executive  under this  Agreement  other than the
Corporation's  obligation  (i) to make such  severance  payment to the Executive
(ii) to pay Executive's COBRA premium payments for  hospitalization  and medical
insurance  coverage provided by the Corporation and to pay Executive's  premiums
on any death and/or disability insurance being maintained by the Corporation for
Executive  at the time of such  termination,  in each case until the  payment in
full of such severance payments.

                  (c)  Paragraphs  7, 8, 9, 10, 11, 12 and 26 of this  Agreement
shall survive the termination of Executive's employment hereunder, except in the
case of termination pursuant to Paragraph 15.

                  13.  DISABILITY.  In the  event  that  during  the term of her
employment by the  Corporation  Executive shall become Disabled (as that term is
hereinafter  defined) she shall  continue to receive the full amount of the base
salary to which she was  theretofore  entitled  for a period of six months after
she shall be deemed to have  become  Disabled  (the  "First  Disability  Payment
Period").  If the  First  Disability  Payment  Period  shall  end  prior  to the
Termination Date, Executive thereafter shall be entitled to receive salary at an
annual rate equal to 80% of her then  current  base salary for a further  period
ending on the earlier of (i) six months  thereafter or (ii) the Termination Date
(the "Second  Disability  Payment  Period").  Upon the  expiration of the Second
Disability  Payment  Period,  Executive  shall not be  entitled  to receive  any
further  payments  on account  of her base  salary  until she shall  cease to be
Disabled  and shall have  resumed her duties  hereunder  and  provided  that the
Corporation shall not have theretofore  terminated this Agreement as hereinafter
provided.  The Corporation may terminate Executive's employment hereunder at any
time after  Executive is Disabled,  upon at least 10 days' prior written notice;
PROVIDED,  HOWEVER, that such termination shall not relieve the Corporation from
its  obligation  to make  the  payments  to  Executive  described  above in this
Paragraph 13. For the purposes of this  Agreement,  Executive shall be deemed to
have  become  Disabled  when (x) by reason  of  physical  or mental  incapacity,
Executive  is not able to  perform  her  duties  hereunder  for a  period  of 90
consecutive days or for 120 days in any consecutive 180-day period and (y)

                                       -6-

<PAGE>
Executive's  physician or a physician  designated by the Corporation  shall have
determined  that it is  unlikely  that  Executive  will be able,  by  reason  of
physical or mental  incapacity,  to perform a substantial  portion of her duties
hereunder for the following 120 days. In the event that Executive  shall dispute
any  determination  of her disability  pursuant to clauses (x) or (y) above, the
matter shall be resolved by the  determination of three physicians  qualified to
practice medicine in the United States of America, one to be selected by each of
the  Corporation  and Executive  and the third to be selected by the  designated
physicians.  If Executive  shall receive  benefits under any  disability  policy
maintained by the Corporation,  the Corporation  shall be entitled to deduct the
amount  equal to the  benefits  so received  from base salary that it  otherwise
would have been required to pay to Executive as provided above.

                  14.  TERMINATION  FOR CAUSE.  The  Corporation may at any time
upon written notice to Executive terminate Executive's employment for Cause. For
purposes of this  Agreement,  the  following  shall  constitute  Cause:  (i) the
willful  and  repeated  failure of  Executive  to perform  any  material  duties
hereunder or gross  negligence of Executive in the  performance  of such duties,
and if such failure or gross negligence is susceptible to cure by Executive, the
failure to effect such cure within twenty (20) days after written notice of such
failure or gross  negligence  is given to  Executive;  (ii) except as  permitted
hereunder,  unexplained,  willful and regular  absences  of  Executive  from the
Corporation;  (iii) excessive use of alcohol or illegal drugs,  interfering with
the performance of Executives duties  hereunder;  (iv) indictment for a crime of
theft, embezzlement,  fraud, misappropriation of funds, other acts of dishonesty
or the violation of any law or ethical rule relating to Executive's  employment;
(v) indicted for any other felony or other crime  involving  moral  turpitude by
Executive;  or  (vi)  the  breach  by  Executive  of any of  the  provisions  of
paragraphs  8, 9 or 10 and if such breach is  susceptible  of cure by Executive,
the failure to effect such cure within twenty (20) days after written  notice of
such breach is given to  Executive.  For purposes of this  Agreement,  an action
shall  be  considered  "willful"  if  it is  done  intentionally,  purposely  or
knowingly,   distinguished  from  an  act  done  carelessly,   thoughtlessly  or
inadvertently.  In any such  event,  Executive  shall be entitled to receive her
base salary to and including the date of termination.

                  15.  TERMINATION  FOR  EMPLOYER  BREACH.  Executive  may  upon
written notice to the Corporation terminate this Agreement (including paragraphs
8, 9, 10 and 11) in the event of the breach by the  Corporation  of any material
provision of this  Agreement,  and if such breach is  susceptible  of cure,  the
failure to effect such cure within 20 days after  written  notice of such breach
is  given  to the  Corporation  (an  "Employer  Breach").  Executive's  right to
terminate  this  Agreement  under this  Paragraph 15 shall be in addition to any
other remedies Executive may have under law or equity. Paragraphs 7 and 12(b) of
this  Agreement  shall survive the  termination  of this  Agreement by Executive
pursuant to this Paragraph 15.

                                       -7-

<PAGE>
                  16. INSURANCE  POLICIES.  The Corporation shall have the right
from time to time to purchase,  increase, modify or terminate insurance policies
on the life of Executive for the benefit of the Corporation,  in such amounts as
the Corporation shall determine in its sole discretion. In connection therewith,
Executive  shall,  at such  time or times  and at such  place or  places  as the
Corporation may reasonably direct,  submit herself to such physical examinations
and execute and deliver such documents as the  Corporation  may reasonably  deem
necessary or desirable;  PROVIDED that such examinations  shall be performed by,
and that such documents shall be delivered only to, qualified  physicians and/or
medical  representatives of licensed insurance companies. At Executive's written
request upon the  termination  of  Executive's  employment  under this Agreement
(other than for Cause or as result of Executive's  death), the Corporation shall
assign to Executive the Corporation's  interest in such life insurance  policies
(to the extent  such  policies  are so  assignable  by their  terms),  whereupon
Executive shall assume all obligations of the Corporation in respect thereof.

                  17. ENTIRE AGREEMENT;  AMENDMENT.  This Agreement  constitutes
the entire agreement of the parties hereto,  and any prior agreement between the
Corporation  and  Executive  is  hereby  superseded  and  terminated   effective
immediately  and shall be without  further  force or  effect.  No  amendment  or
modification herself shall be valid or binding unless made in writing and signed
by the party against whom enforcement thereof is sought.

                  18. NOTICES.  Any notice required,  permitted or desired to be
given pursuant to any of the provisions of this Agreement  shall be delivered in
person or sent by responsible  overnight  delivery  service or sent by certified
mail, return receipt requested, postage and fees prepaid, if to the Corporation,
at its address  set forth  above to the  attention  of the  Corporation's  Chief
Executive Officer and, if to Executive,  at her address set forth above.  Either
of the  parties  hereto may at any time and from time to time change the address
to which notice shall be sent hereunder by notice to the other party given under
this Paragraph 18. Notices shall be deemed effective upon receipt.

                  19. NO ASSIGNMENT; BINDING EFFECT. Neither this Agreement, nor
the right to receive any  payments  hereunder,  may be assigned by either  party
without the other party's prior written consent. This Agreement shall be binding
upon  Executive,   her  heirs,   executors  and   administrators  and  upon  the
Corporation, its successors and assigns.

                  20. WAIVERS. No course of dealing nor any delay on the part of
either party in exercising any rights hereunder shall operate as a waiver of any
such  rights.  No waiver of any  default  or breach of this  Agreement  shall be
deemed a continuing waiver or a waiver of any other breach or default.

                                       -8-

<PAGE>
                  21.  GOVERNING  LAW. This  Agreement  shall be governed by and
construed in accordance with the laws of the State of Delaware, except that body
of law relating to choice of laws.

                  22. INVALIDITY. If any clause,  paragraph,  section or part of
this Agreement shall be held or declared to be void, invalid or illegal, for any
reason,  by any  court  of  competent  jurisdiction,  such  provision  shall  be
ineffective  but shall not in any way  invalidate  or affect  any other  clause,
paragraph, section or part of this Agreement.

                  23. FURTHER ASSURANCES. Each of the parties shall execute such
documents  and take such other  actions as may be  reasonably  requested  by the
other  party to carry out the  provisions  and  purposes  of this  Agreement  in
accordance with its terms.

                  24.  HEADINGS.  The headings  contained in this Agreement have
been inserted for  convenience  only and shall not affect in any way the meaning
or interpretation of this Agreement.

                  25.  PUBLICITY.  The Corporation and Executive agree that they
will not make any press releases or other  announcements prior to or at the time
of execution of this  Agreement with respect to the terms  contemplated  hereby,
except as required by applicable  law,  without the prior  approval of the other
party, which approval will not be unreasonably withheld.

                  26.  ARBITRATION.  Any disputes  arising under this  Agreement
shall be submitted to and determined by arbitration in St. Louis, Missouri. Such
arbitration  shall be  conducted  in  accordance  with the rules of the American
Arbitration  Association.  Any award or  decision  of the  arbitration  shall be
conclusive  in the absence of fraud and  judgment  thereon may be entered in any
court having jurisdiction  thereof.  The costs of such arbitration shall be paid
by the non-prevailing party to the extent directed by the arbitrator(s).

THIS AGREEMENT CONTAINS BINDING ARBITRATION PROVISIONS WHICH MAY BE ENFORCED BY
THE PARTIES.

                                       -9-

<PAGE>


                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement to be duly executed as of the day and year first above written.

                                             SHEFFIELD PHARMACEUTICALS, INC.


                                             By:
                                                 -------------------------------
                                                 Loren G. Peterson
                                                 Chief Executive Officer



                                             -----------------------------------
                                             Judy Roeske Bullock


                                      -10-


                                                                      EXHIBIT 21


                 SUBSIDIARIES OF SHEFFIELD PHARMACEUTICALS, INC.


1. Ion Pharmaceuticals, Inc., a Delaware corporation.

2. CP Pharmaceuticals, Inc., a Delaware corporation.



                                                                    Exhibit 23.1

                        Consent of Independent Auditors

We consent to the  incorporation  by  reference in the  Registration  Statements
(Form S-3 No. 33-95732,  Form S-3 No.  333-27753 and Form S-3 No.  333-38327) of
Sheffield  Pharmaceuticals,  Inc.  and  in  the  related  Prospectuses,  in  the
Registration  Statement  (Form S-8 No.  33-95262)  pertaining  to the 1993 Stock
Option Plan of Sheffield  Pharmaceuticals,  Inc., the 1993 Restricted Stock Plan
of Sheffield Pharmaceuticals,  Inc. and options granted to directors,  officers,
employees,  consultants  and advisors of the Company  pursuant to other employee
benefit  plans  of  Sheffield  Pharmaceuticals,  Inc.  and in  the  Registration
Statement (Form S-8 No.  333-14867)  pertaining to the 1993 Stock Option Plan of
Sheffield  Pharmaceuticals,  Inc.,  the  1996  Directors  Stock  Option  Plan of
Sheffield  Pharmaceuticals,  Inc. and Options  granted to  directors,  officers,
employees,  consultants  and advisors of the Company  pursuant to other employee
benefit plans of Sheffield  Pharmaceuticals,  Inc. of our report dated  February
13,  1998,  except  for Note 11 as to which  the date is April  15,  1998,  with
respect to the consolidated  financial statements of Sheffield  Pharmaceuticals,
Inc. and  subsidiaries  included in this Annual  Report (Form 10-K) for the year
ended December 31, 1997.



                                        /s/ Ernst & Young LLP
                                            ERNST & YOUNG LLP
Princeton, New Jersey
April 15, 1998


                                                                    Exhibit 23.2

The Board of Directors
Sheffield Pharmaceuticals, Inc.


We consent to incorporation  by reference in the  Registration  Statements (Form
S-3 No. 33-95732, Form S-8 No. 33-95262, Form S-8 No. 333-14867 and Form S-3 No.
333-38327) of Sheffield  Pharmaceuticals,  Inc. of our report dated February 11,
1994,  relating to the consolidated  financial  statements of Sheffield  Medical
Technologies  Inc. and subsidiary  included in the Annual Report (Form 10-K) for
the year ended December 31, 1997.

Our report dated  February  11, 1994,  contains an  explanatory  paragraph  that
states  that the  Company's  recurring  losses and net  deficit  position  raise
substantial  doubt  about  its  ability  to  continue  as a going  concern.  The
consolidated  financial  statements  do not include any  adjustments  that might
result from the outcome of this uncertainty.


/s/ KPMG Peat Marwick LLP
    KPMG Peat Marwick LLP

Houston, Texas
April 15, 1998

<TABLE> <S> <C>

<ARTICLE>             5
<LEGEND>
THIS  SCHEDULE  CONTAINS  SUMMARY  FINANCIAL   INFORMATION  EXTRACTED  FROM  THE
CONDENSED  FINANCIAL  STATEMENTS  FOR THE QUARTER ENDED DECEMBER 31, 1997 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH STATEMENTS.
</LEGEND>
       
<S>                                 <C>
<PERIOD-TYPE>                                            12-MOS
<FISCAL-YEAR-END>                                        DEC-31-1997
<PERIOD-END>                                             DEC-31-1997
<CASH>                                                       393,608
<SECURITIES>                                                       0
<RECEIVABLES>                                                      0
<ALLOWANCES>                                                       0
<INVENTORY>                                                        0
<CURRENT-ASSETS>                                             520,986
<PP&E>                                                       328,414
<DEPRECIATION>                                               185,201
<TOTAL-ASSETS>                                               689,937
<CURRENT-LIABILITIES>                                      1,358,550
<BONDS>                                                    1,574,875
                                      2,388,763
                                                        0
<COMMON>                                                     126,495
<OTHER-SE>                                                (4,763,746)
<TOTAL-LIABILITY-AND-EQUITY>                                 689,937
<SALES>                                                            0
<TOTAL-REVENUES>                                             556,914
<CGS>                                                              0
<TOTAL-COSTS>                                                      0
<OTHER-EXPENSES>                                          10,046,052
<LOSS-PROVISION>                                                   0
<INTEREST-EXPENSE>                                            39,292
<INCOME-PRETAX>                                           (9,489,138)
<INCOME-TAX>                                                       0
<INCOME-CONTINUING>                                       (9,489,138)
<DISCONTINUED>                                                     0
<EXTRAORDINARY>                                                    0
<CHANGES>                                                          0
<NET-INCOME>                                              (9,489,138)
<EPS-PRIMARY>                                                  (0.79)
<EPS-DILUTED>                                                  (0.79)
        

</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission