SHEFFIELD PHARMACEUTICALS INC
10-K, 1999-03-24
PHARMACEUTICAL PREPARATIONS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K

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

                   For the fiscal year ended December 31, 1998

                                       OR

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
    ACT OF 1934 (NO FEE REQUIRED)

                         Commission file number 1-12584

                         SHEFFIELD PHARMACEUTICALS, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

        DELAWARE                                         13-3808303
(STATE OF INCORPORATION)                   (IRS EMPLOYEE IDENTIFICATION NUMBER)

425 SOUTH WOODSMILL ROAD              63017               (314) 579-9899
ST. LOUIS, MISSOURI                 (ZIP CODE)        (REGISTRANT'S TELEPHONE,
(ADDRESS OF PRINCIPAL                                  INCLUDING AREA CODE)
 EXECUTIVE OFFICES)


          SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:

         TITLE OF 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 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. [ X ]Yes [ ] No

         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 19, 1999 of the voting stock of the
registrant  held by  non-affiliates  (based upon the closing  price of $2.25 per
share  of  such  stock  on  the  American  Stock  Exchange  on  such  date)  was
approximately $49,178,000.  Solely for the purposes of this calculation,  shares
held by  directors  and  officers  and  beneficial  owners of 10% or more of the
Company's  Common Stock of the  registrant  have been  excluded.  Such exclusion
should not be deemed a determination or an admission by the registrant that such
individuals are, in fact, affiliates of the registrant.

         Indicate the number of shares  outstanding of each of the  registrant's
classes of common equity, as of the latest  practicable date: At March 19, 1999,
there were outstanding  27,083,419 shares of the registrant's Common Stock, $.01
par value.
<PAGE>
                                     PART I
ITEM 1.           BUSINESS


GENERAL

                  Sheffield Pharmaceuticals, Inc. (the "Company") is a specialty
pharmaceutical  company  focused on development and  commercialization  of later
stage,  lower risk  pharmaceutical  products that utilize the  Company's  unique
proprietary pulmonary delivery  technologies.  The Company is in the development
stage  and as such  has  been  principally  engaged  in the  development  of its
pulmonary delivery systems.

                  The Company has strategic  alliances  for  pulmonary  delivery
development  with Elan  Corporation,  plc ("Elan"),  Siemens AG ("Siemens")  and
Zambon Group SpA  ("Zambon").  The Company  believes  that a less  costly,  more
predictable  path to  commercial  development  of  therapeutics  can be achieved
through  the  creative  use  of  collaborations  and  alliances,  combined  with
state-of-the-art technology with experienced management. The Company is applying
this strategy to the development of both respiratory and systemic pharmaceutical
products to be delivered through the Company's  proprietary  pulmonary  delivery
systems.

                  In 1997,  the Company  acquired the Metered  Solution  Inhaler
("MSI")  pulmonary  delivery  system through a worldwide  exclusive  license and
supply  arrangement  with Siemens.  During the second half of 1998,  the Company
acquired the rights to an additional pulmonary delivery technology,  the Aerosol
Drug  Delivery  System  ("ADDS")  from a subsidiary  of  Aeroquip-Vickers,  Inc.
("Aeroquip-Vickers").  The ADDS technology is a new generation  propellant-based
pulmonary delivery system.

                  Using  these  pulmonary  delivery  systems as  platforms,  the
Company has established strategic alliances for developing the initial products.
In  a  collaboration   with  Zambon,  the  Company  is  developing  a  range  of
pharmaceutical  products delivered by the MSI to treat respiratory  diseases. As
part of the  strategic  alliance  with Elan,  a world  leader in  pharmaceutical
delivery  technology,  the Company is developing therapies for systemic diseases
to be delivered to the lungs. The initial systemic programs are for therapies in
the breakthrough pain and migraine  headache  markets.  Elan licensed two of its
own  delivery  technologies  to the  Company  that  complement  the MSI and ADDS
technologies. Outside of its alliances, the Company owns the worldwide rights to
respiratory disease applications of all of its technologies, subject only to the
MSI respiratory rights licensed to Zambon.

                  The  Company's  approach to its  business  is to maximize  the
application  of Company  resources  toward product  development  and to minimize
infrastructure  and related  overhead costs. The Company does not currently have
sales or marketing capabilities.

         Sheffield  Medical  Technologies  Inc.  ("Sheffield")  was incorporated
under Canadian law in October 1986. In May 1992, the Company became domesticated
as a Wyoming  corporation  pursuant to a  "continuance"  procedure under Wyoming
law. In January  1995,  the  Company's  shareholders  approved  the  proposal to
reincorporate  Sheffield  in Delaware,  which was effected on June 13, 1995.  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.  In June 1997,  the  Company's
shareholders  approved the proposal to change  Sheffield's  name from  Sheffield
Medical  Technologies  Inc.  to  Sheffield  Pharmaceuticals,  Inc. As part of an
agreement with Elan, on June 30, 1998, Systemic Pulmonary Delivery, Ltd. ("SPD")
was formed as a wholly  owned  subsidiary  of the  Company.  At that  time,  SPD
acquired  the  Company's  rights  to the  systemic  applications  of the MSI and
acquired Elan's rights to certain pulmonary  delivery  technologies.  Unless the
context requires otherwise, Sheffield, Ion, CP and SPD are referred herein to as
"the Company".

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


BUSINESS STRATEGY

                  The Company's  business  strategy is to seek out opportunities
to  acquire  and  develop  commercially  attractive   pharmaceutical   products,
primarily in the area of pulmonary drug delivery.  Where  possible,  the Company
intends to enter into joint  ventures or other forms of  strategic  alliances to
defray or reduce significant development and manufacturing costs associated with
these opportunities that otherwise might be borne by the Company while retaining
certain  commercial rights. As  commercialization  nears, the Company intends to
add or obtain  access to a  specialty  pharmaceutical  sales force in the United
States, as well as the attendant marketing infrastructure.


                                       2
<PAGE>
                  The  Company  will  to  continue  to be  opportunistic  in the
acquisition  and/or  in-licensing  of  technologies  or  products  that meet the
Company's strategic objectives.  Such opportunities include: (1) technologies or
products  that meet the needs of healthcare  communities  that are not currently
served, (2) technologies or products that can cost effectively be developed when
viewed in light of the commercial opportunity and competitive environment within
the U.S.  market,  (3)  technologies  or  products  that will be of  substantive
interest to other companies with regard to co-development  and co-promotion with
limited incremental investment by the Company, and (4) products and technologies
with the  potential  for  marketing  to a specialty  group or limited  physician
audience.  The Company plans to pay special  attention to platform  technologies
that  can  be  developed  into  multiple  applications  in  varying  therapeutic
categories.


PULMONARY DELIVERY MARKET ENVIRONMENT

                  The Company  competes in the pulmonary  delivery  market.  The
principal  use of pulmonary  delivery has been in the  treatment of  respiratory
diseases such as asthma,  chronic  obstructive  pulmonary  disease  ("COPD") and
cystic fibrosis.  In 1998,  industry  sources estimate there were  approximately
35.5 million asthma patients and 49.5 million COPD patients in the world.  These
sources  indicate  that the number of newly  diagnosed  patients is growing at a
rate in excess of 10%  annually due to an increase in  worldwide  air  pollution
levels and the overall aging of the  population.  By the year 2005,  the Company
expects  that there will be more than 19 million  asthma  patients in the United
States alone.

         In  addition,  the  competitive   marketplace  has  been  significantly
affected by the worldwide  phase out of  Chlorofluorocarbons  (CFCs) pursuant to
the Montreal  Protocol.  CFCs are the propellants  used for MDIs,  which are the
most common form of pulmonary delivery. Companies in the respiratory market have
initiated  significant programs to redevelop existing products using alternative
propellants, dry powders or nebulizers.

                  There is considerable  interest in applying pulmonary delivery
technology to systemic  therapies  that would benefit from the  relatively  easy
access to the circulatory  system through the lungs. Work on pulmonary  delivery
of insulin by other pulmonary delivery companies has received significant public
notice.  There is a range of therapies  that could provide a significant  market
opportunity  if  available  in  a  pulmonary   delivered  form.  There  is  also
significant  advantage in aerosol therapy for respiratory  disease.  It delivers
the medication directly onto the lung epithelial  surfaces.  In many cases, this
means  that drugs can be  effective  in very low doses --  eliminating  the side
effects usually associated with systemic administration.

                  Today,  three types of devices are widely used in metered dose
administration: metered dose inhalers, dry powder inhalers, and nebulizers.

                  METERED  DOSE  INHALERS.   Currently,  metered  dose  inhalers
                  ("MDIs")  are  the  most  commonly  used  pulmonary   delivery
                  systems.  It is estimated  that in the United  States,  80% of
                  pulmonary  drug delivery is via MDI, with the majority of this
                  use coming from adults with asthma and COPD.

                  The main  components  of an MDI include a canister  containing
                  the drug mixed with  propellant and  surfactant,  a mouthpiece
                  that acts as the delivery  conduit and the  actuator  seat for
                  the release of the drug. The initial  velocity of particles as
                  they leave an inhaler is very high --  approximately 60 mph --
                  resulting  in  wasted  drug  if the  patient  is not  able  to
                  coordinate  his/her  breath with the  delivery of aerosol into
                  the mouth. A number of studies have  demonstrated that as many
                  as 60% of patients cannot  accurately  time their  inspiration
                  with the  actuation of their  inhaler  which  results in under
                  medication  and  lack of  compliance.  Typically,  only 20% of
                  delivered drug actually reaches the lungs.

                  The  primary  advantages  of an MDI  include  its small  size,
                  portability,  quick usage time, and its  availability  for use
                  with most respiratory  drugs.  Disadvantages of an MDI include
                  patient  coordination  issues  and  efficient  dose  delivery.
                  Additionally,  because the use of  chlorofluorocarbon  ("CFC")
                  propellants  traditionally used in MDIs is being phased out by
                  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.  The majority of
                  U.S. patients favor aerosol MDIs although a sizable percentage
                  may not coordinate them properly.

                  DRY  POWDER  INHALERS.   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 relatively  cumbersome  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
                  multi-dose   DPIs  that  can   deliver  up  to  200  doses  of
                  medication.  However,  like the single dose systems,  they are
                  inspiratory  flow rate dependent,  that is, the amount of drug
                  delivered  to the lung  depends  on the  patient's  ability to
                  inhale.


                                       3
<PAGE>
                  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,  which can be  problematic  in younger  patients or
                  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,  they may induce acute  bronchospasm in
                  sensitive   individuals.   Additionally,   multi-dose   powder
                  inhalers are subject to moisture  sensitivity  either from the
                  environment or patient breath and have had difficulty  meeting
                  U.S. regulatory standards for dose-to-dose variation.

                  NEBULIZERS.  The third widely used aerosol  delivery system is
                  the  nebulizer.  Jet  nebulizers,  which are the most commonly
                  used  nebulizer,  work on a stream of compressed air or oxygen
                  that is forced  through a narrow  tube  lying  just  above the
                  surface of the liquid to be nebulized.  It takes approximately
                  10 to 15 minutes to nebulize  this  amount of liquid.  Studies
                  suggest keeping the duration of nebulization below 10 minutes,
                  as longer  durations  are  associated  with  poor  compliance.
                  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.  Nebulizers also play a key role
                  in emergency  room and intensive  care  treatment for patients
                  with  acute   bronchospasm.   Another  feature   exclusive  to
                  nebulizers is that a mixture of drugs can be  administered  in
                  one sitting. However,  currently approved nebulizers are bulky
                  table-top units that are time  consuming,  have a high initial
                  cost  (often in excess of the amount  reimbursable  by managed
                  care) and can be noisy during operation.

SHEFFIELD'S PULMONARY DELIVERY PLATFORMS

                  The Company  recognizes that no single  technology in the area
of pulmonary  drug delivery will meet the needs of patients and providers of the
wide variety of compounds  (both for  respiratory  disease and systemic  disease
therapy)  that may  benefit  therapeutically  and  commercially  from  pulmonary
delivery.  As a result, it remains the Company's goal to acquire or in-license a
portfolio of pulmonary  delivery  technologies to meet the broadest based market
opportunity.

                  For this reason,  the Company  acquired  worldwide,  exclusive
rights to the  Siemens-developed  Metered Solution  Inhaler ("MSI"),  a portable
nebulizer-based  pulmonary delivery system.  This was also the rationale for the
acquisition  in mid 1998 from  Aeroquip-Vickers  of the  Aerosol  Drug  Delivery
System ("ADDS") technology, an improved version of the MDI. In addition, as part
of its alliance with Elan, the Company acquired the rights to two Elan-developed
technologies,  the Ultrasonic  Pulmonary Drug Absorption  System ("UPDAS") and a
therapeutic  agent to enhance  absorption of drugs in the deep lungs ("Enhancing
Technology").

                  In  keeping  with  the   Company's   strategy  of   minimizing
infrastructure  and capital  required to bring  products to market,  the Company
partnered the development of respiratory  products in the MSI with Zambon. Under
its agreement with Zambon,  MSI commercial rights for respiratory  products have
been sublicensed to Zambon, with the Company maintaining co-promotion rights for
the U.S. market. The Company's ability to co-promote MSI respiratory products in
the U.S. requires no additional payment by the Company.  Zambon has committed to
fund the  development  costs for respiratory  compounds  delivered by the MSI as
well as making certain  milestone  payments and royalties on net sales resulting
from these MSI products to the Company.

                  The ADDS  technology,  acquired  by the  Company in  mid-1998,
along with certain applications of the MSI, have become the focus of a strategic
alliance with Elan for development for pulmonary delivery of drugs for treatment
of systemic  (non-respiratory)  diseases.  Two Elan  technologies have also been
licensed to the venture.  The Company has retained  exclusive  rights outside of
the strategic alliance to respiratory  disease  applications  utilizing the ADDS
technology and the two Elan  technologies.  Two systemic compounds for pulmonary
delivery are currently under  development,  one in the MSI for breakthrough pain
and one for migraine in the ADDS.


                                       4
<PAGE>
                  The  Company is in  discussions  with an aerosol  manufacturer
with regard to the  manufacture  of both systemic and  respiratory  drugs in the
ADDS.  The Company is also in  discussions  with a range of  pharmaceutical  and
biotechnology  companies about potential  collaborations for developing specific
compounds  (both  respiratory  and systemic) in ADDS.  Unlike the MSI, ADDS is a
technology  that  lends  itself  to  individual  product   applications  in  the
respiratory market.  While the ADDS technology may be applicable to a wide range
of  respiratory  products,  the  Company  believes  that a full line of products
delivered by ADDS is not necessary for commercial  success.  The reverse is true
with the MSI,  since  one of the MSI's  primary  competitive  advantages  is the
delivery of a range of drugs in interchangeable  cartridges used with the parent
nebulizer device.

METERED SOLUTION INHALER

                  The Company owns the worldwide  rights to the Metered Solution
Inhaler, a patented state-of-the-art,  multi-dose nebulizer delivery system from
Siemens  AG,  the  multi-national   engineering  and  electronics  conglomerate.
Worldwide  development  responsibility  and  commercial  rights for  respiratory
products  in the MSI have been  licensed  to Zambon  Group SpA in return  for an
equity investment in the Company  (approximately  10%),  milestone  payments and
royalties on net sales. The Company retains U.S. co-promotion rights.

                  The MSI pulmonary  drug delivery  system has been developed to
provide  the  therapeutic  benefit  of  nebulization  with  the  convenience  of
pressurized metered dose inhalers (MDIs) in one system. The MSI was developed to
meet specific needs within the respiratory  market,  particularly  for pediatric
and geriatric patients suffering from asthma and COPD.

                  Albuterol  in  the  MSI  is   currently   the  subject  of  an
Investigational   New  Drug   Application   ("IND")   with  the  Food  and  Drug
Administration  ("FDA").  A Phase I/II study  being  conducted  by Zambon at the
University  of Maryland  under this IND. The Company  expects this study will be
completed late in the first quarter of 1999.

DESCRIPTION OF THE MSI

                  The MSI is  comprised  of two  main  components:  a  reusable,
pocket-size  inhaler unit developed and  manufactured for the Company by Siemens
AG, a global leader in  electronics  and  technology  and  interchangeable  drug
cartridges containing multiple doses of drug in solution. Arrangements have been
made  for  the  drug-  containing  cartridges  to be  filled  and  assembled  at
Chesapeake Biological Laboratories of Baltimore, Maryland. The cartridges are an
integral part of the total system and the cartridge  plus each drug  formulation
will be the subject of a separate drug device  combination New Drug  Application
("NDA").

                  The  basic   technology  of  the  system  involves  the  rapid
nebulization  of  therapeutic  agents using  ultrasonic  waves.  This produces a
concentrated cloud of medication  delivered through the mouthpiece over a two to
three second period for  inhalation.  The key  components of the  technology are
housed in the inhaler unit. They are the  rechargeable  battery-operated  motor,
ultrasonic horn and drug cartridge. The pocketsize MSI allows for administration
of a  range  of  drugs  in a  single,  simple-to-use,  environmentally  friendly
delivery   system.   Each   cartridge   contains,   depending  on   formulation,
approximately a one to two month supply of drug.

                  To  use  the  MSI  system,   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 a small electrical motor that
transports a precise dose of drug from the cartridge  chamber to the  ultrasonic
horn --  transforming  the solution  into an  aerosolized  cloud.  The patient's
inspiratory breath carries this cloud of medication  directly to the lungs where
it is needed.  The dose  delivered by the MSI is very  accurate  and  consistent
because:  (1) the MSI 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 (2) the MSI  does not  require  a high  level  of  coordination
between  inspiration and actuation of the device.  The patient's  natural breath
carries  the  medication  directly to the lungs,  minimizing  the amount of drug
deposited in the mouth and throat.

MSI ADVANTAGES

                  The  Company  believes  that  the  MSI  provides   significant
advantages  over other drug  delivery  systems.  It is  particularly  suited for
younger and older asthma  patients,  as well as for older COPD patients who have
difficulty   using  MDIs  and   currently   have  to  depend  on  larger,   more
time-consuming  tabletop  nebulizers  for delivery of their  medications.  These
potential advantages include:

                                       5
<PAGE>
                  ACCURACY. The superior engineering and patient-friendly design
                  of the  MSI is  intended  to  provide  minimal  dose  to  dose
                  variability.  Patients  can  therefore  expect to receive  the
                  right therapeutic dose  consistently.  Recent testing with the
                  MSI system found dose-to-dose variability significantly better
                  than the current FDA requirement.

                  ENHANCED PATIENT COMPLIANCE. The pocketsize, portable MSI unit
                  is   designed   to  combine   the   therapeutic   benefits  of
                  nebulization with the convenience of pressurized  metered dose
                  inhalers. The drug dose is precisely measured and delivered in
                  seconds,  as  compared  to 10 to 15  minutes  or more  for the
                  typical  nebulizer.  The device is easy to operate,  requiring
                  minimal  coordination  between  actuation and  inhalation  for
                  proper drug  delivery.  These benefits are expected to improve
                  patient  compliance  with the proper  administration  of their
                  respiratory  medication.  Another  expected factor in enhanced
                  patient  compliance  is the broad  range of drugs  that can be
                  accommodated  by  the  MSI,   allowing  patients  on  multiple
                  medications to rely on one simple delivery system.

                  INSPIRATORY  FLOW RATE  INDEPENDENCE.  Unlike most of the DPIs
                  currently  available (or in development),  the MSI 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 patients with
                  compromised lung function (e.g.,  during an asthma attack) who
                  have a difficult time breathing normally.

                  VERSATILITY. Many asthma and COPD patients are taking multiple
                  inhalation medications.  The MSI accommodates  interchangeable
                  drug  cartridges  to allow for the  administration  of a broad
                  range  of  frequently  used  respiratory  drugs  in a  single,
                  simple-to-use  delivery  system.  The system includes an early
                  warning   mechanism  that  signals  when  the  batteries  need
                  recharging or when the dosator is not functioning properly and
                  a dose counter indicating when a new inhaler unit is required.
                  These  user-friendly  features  result in a simplified  dosing
                  procedure for both patients and their caregivers.

                  PULMONARY   TARGETING.   The  particle  size  of  the  inhaled
                  medication  affects the  effectiveness of drug delivery to the
                  lung.  Generally,  a drug is "respirable" if the particle size
                  is between  two and five  microns.  Larger  particles  tend to
                  deposit in the inhaler or in the  patient's  mouth and throat.
                  Smaller  particles  tend to be exhaled.  Within the respirable
                  range, the MSI is designed to deliver  particles  specifically
                  targeted for certain  portions of the lungs,  the central lung
                  for local  treatment or the deep lung for enhanced  absorption
                  into the blood stream for systemic therapies.

                  ENVIRONMENTALLY   FRIENDLY.   CFCs,  the  most  commonly  used
                  propellant for MDI aerosols,  are believed to adversely affect
                  the  Earth's  ozone  layer.  They  are  subject  to  worldwide
                  regulations  aimed at  eliminating  their  production  and use
                  within the decade  under the Montreal  Protocol.  The MSI does
                  not use CFCs or any other type of ozone depleting propellant.

                  ECONOMICAL.   The  Company   believes   that  the  MSI  offers
                  significant  value to the  patient  because it is  designed to
                  allow a single  device  to be used with a  complete  family of
                  respiratory    medications    available   in    cost-effective
                  interchangeable   cartridges.   The  inhaler  unit  itself  is
                  expected  to have a life of two to three  years.  The  initial
                  cost of the  inhaler  unit is  expected  to be within the cost
                  range that managed care providers will reimburse patients. The
                  Company  anticipates  the combined  cost to the patient of the
                  device plus the drug filled  cartridges  will be comparable to
                  the  average  cost  per  dose  of the  standard  metered  dose
                  inhaler.


MSI PRODUCT PIPELINE IN DEVELOPMENT

                  Through development alliances with strategic partners,  Zambon
and Elan, the Company is implementing a broad development  strategy for the MSI.
The Company and Zambon are developing a range of widely used  respiratory  drugs
for delivery in the MSI.  Potential  candidates for respiratory  disease therapy
include  albuterol,  ipratropium,   cromolyn,  inhaled  bronchial  steroids  and
combination  products,  which are described below.  Most patients who experience
respiratory disease commonly use multiple medications to treat their conditions.
The initial Phase I/II clinical  trial on albuterol in the MSI is expected to be
completed in the first quarter of 1999.  The Company  anticipates  completion of
the albuterol  development program and submission of the drug device combination
NDA in the  second  half of 2000.  The  Company  and Zambon  intend to  initiate
additional  clinical  trials for other  respiratory  therapies in the MSI during
1999.

Among the drugs planned for development for the MSI system are:

                  ALBUTEROL.  Albuterol is a beta agonist used as rescue therapy
                  for  patients  with asthma and chronic  obstructive  pulmonary
                  disease. It is the largest selling  respiratory  compound with
                  U.S.  sales of over $500  million in all dosage  forms.  It is
                  available in a metered dose inhaler and nebulizer  solution as
                  well as solid and liquid dosage forms.


                                       6
<PAGE>
                  IPRATROPIUM. Ipratropium is a bronchodilator used primarily to
                  treat   COPD   patients.   It  is   useful   because   of  its
                  anticholinergic properties, which reduce pulmonary congestion.
                  It is available in a metered dose inhaler,  nebulizer solution
                  and a combination product with albuterol.

                  CROMOLYN. Cromolyn is a non-steroidal,  anti-inflammatory drug
                  used  to  reduce   the   underlying   bronchial   inflammation
                  associated  with asthma.  It is extremely  safe and it is most
                  commonly used to treat pediatric patients.  It is available in
                  a metered dose inhaler and nebulizer solution.

                  INHALED BRONCHIAL  STEROIDS.  Inhaled  bronchial  steroids are
                  anti-inflammatory   agents.   They   address  the   underlying
                  inflammation  in the lungs of asthma and COPD  patients.  They
                  are  available  in a metered  dose  inhaler.  Steroids are the
                  fastest growing category in the respiratory market, growing at
                  25% per year.

                  OTHER RESPIRATORY  THERAPIES.  In addition to the drugs listed
                  above,  the  Company  and  Zambon  are  assessing  the  market
                  potential  for a range of  additional  respiratory  therapies.
                  These  therapies are expected to include a  combination  of an
                  anti-inflammatory and beta agonist, and an anticholinergic and
                  beta  agonist,   as  well  as  antibiotics,   cystic  fibrosis
                  treatments  and a range of early stage biotech  compounds that
                  target respiratory disease.

                  MSI  SYSTEMIC  MEDICATIONS  -  PAIN  MANAGEMENT.  Through  its
                  development  alliance  with Elan,  the  Company  will  develop
                  certain  drugs for systemic  treatment  by pulmonary  delivery
                  through  the MSI.  The first of these drugs will be a compound
                  for the treatment of severe pain. The pain  management  market
                  includes  patients  with  cancer,   post-operative,   migraine
                  headache and chronic persistent pain.  Narcotic analgesics for
                  treatment  of these  severe  forms of pain  are  estimated  to
                  exceed $5.5 billion in worldwide  sales in the year 2000.  The
                  Company   has   identified   a   market   opportunity   for  a
                  rapid-acting, non-invasive treatment for breakthrough pain and
                  is undertaking pre-clinical formulation and system feasibility
                  development on an analgesic compound for pulmonary delivery in
                  the MSI.

AEROSOL DRUG DELIVERY SYSTEM

                  The  Company's  Aerosol  Drug  Delivery  System  is  a  novel,
proprietary   inhaled-drug   delivery   system  that  is  currently   undergoing
preclinical  feasibility  trials for  delivery of both  respiratory  (local) and
systemic drugs. The ADDS technology represents a new generation MDI.

                  The  ADDS   technology   was   developed   to  correct   major
deficiencies  associated  with  existing  MDI  technology.  MDIs  have  provided
convenient, safe, self-administered treatment for over 30 years and decrease the
cost of therapy  because  they can be used by the  patient at home with  minimal
medical supervision.  However,  proper use of current MDIs requires training and
precise execution of the delivery technique. For these reasons, many patients do
not  use  their  MDIs in the  prescribed  manner  to  coordinate  actuation  and
inhalation.  Incorrect  technique  has been  shown to  result  in  little  or no
benefits from MDI use in half of all adult patients and in a greater  proportion
of children. Moreover, because of these coordination issues, most children under
age five cannot use a standard MDI.

                  Even with  correct  technique,  current MDIs deliver less than
20% of the drug to the lungs of the patient.  The  remaining  80% of the drug is
wasted upon  deposition on the back of the mouth,  or by completely  missing the
airway.  This  results  from:  (1)  the  high  linear  velocity  (two  to  seven
meters/second) of the aerosol jet as it discharges;  (2) incomplete  evaporation
of the  propellant  leading to large size droplets that deposit in the mouth and
larynx rather than reaching the lung; and (3) inadequate  mixing  resulting in a
non-uniform  distribution of drug particles in the inspiratory flow stream. Drug
deposited in the mouth and throat can be swallowed and absorbed systemically or,
in the case of inhaled  steroids,  may create a local  concentration of the drug
that causes immunosuppression response and the development of fungal infections.
In addition,  swallowing beta agonist  bronchodilators  causes relaxation of the
smooth  muscles of the  gastrointestinal  tract that  decreases  activity of the
stomach.

                  From a therapeutic view, the most serious problem with MDIs is
inconsistency  of delivery.  With existing MDIs the actual dose can vary from 0%
to 300% of the  intended  dose.  Patients  may not  receive  sufficient  drug to
achieve  a  therapeutic  effect,  or they may  overdose  with  undesirable  side
effects. These conditions can lead to the need for emergency treatment.

                  A major  advantage for the ADDS technology is that it uses the
same aerosol  canisters and valves as are currently  used in existing MDIs. As a
result,  existing  aerosol  facilities  will be able to produce  canisters  with
formulations  optimized for use in ADDS. The only additional step required is to
place the  aerosol  canister  in the  "device"  prior to final  packaging.  This
results in a cost effective  product and provides numerous benefits to patients.
The device, like the canister, is disposable when the canister is empty.


                                       7
<PAGE>

                  The ADDS technology  features two  improvements  over existing
MDIs and dry powder  inhalers.  Fluid  dynamics  modeling  and  IN-VITRO  trials
indicate  that up to 50% of drug emitted by the ADDS reaches the lungs with oral
deposition  reduced to less than 10%.  Because of this  increase in  efficiency,
ADDS should require less drug per actuation  than existing  devices to achieve a
therapeutic effect. This will result in more unit doses per drug canister than a
conventional MDI, with less potential for adverse reactions.

                  ADDS also features a unique proprietary  triggering  mechanism
that  actuates  at  the  correct  time  during  inhalation.  It is  designed  to
automatically   adjust  to  the  patient's   breathing  pattern  to  accommodate
differences in age and disease state.  This  synchronous  trigger is designed to
reduce patient coordination problems and enhances patient compliance.

DESCRIPTION OF ADDS

                  The ADDS technology  utilizes a standard aerosol MDI canister,
encased in a compact device that provides an aerosol  flow-control chamber and a
synchronized   triggering  mechanism.   Manipulation  of  the  discharged  drug-
containing   aerosol  cloud  is  key  to  optimization  of  the  efficiency  and
consistency for MDIs. The unique features of ADDS are:

                  AEROSOL  FLOW-CONTROL  CHAMBER.  The ADDS  design  uses  fluid
                  dynamics to: (1) reduce the  velocity of the drug  relative to
                  the inspiratory  breath velocity (less than one meter/second);
                  (2) increase  residence  time of the aerosol  droplets  before
                  exiting  the  device to allow  near  complete  evaporation  of
                  propellant;  (3) increase droplet dispersion and mixing,  thus
                  increasing  evaporation  and improving vapor fraction at every
                  point along the flow path; (4) reduce the diameter of the drug
                  particles  at the  exit  plane  of the  device;  (5)  decrease
                  inertia of  droplets  to reduce  impaction;  and (6)  optimize
                  timing of dose discharge with  inspiratory  breath for maximum
                  drug deposition in lungs.

                  SYNCHRONIZING  TRIGGER  MECHANISM.  The  aerosol  flow-control
                  chamber  allows the patient to inhale  through the device at a
                  normal  breathing  rate,  instead  of  a  forced  breath.  The
                  inspiratory  breath  establishes flow fields within the device
                  that mix and uniformly disperse the drug in the breath. At the
                  mouthpiece,  nearly all the  propellant is evaporated  leaving
                  only  drug  particles  to be  inspired,  allowing  a  dramatic
                  increase in the amount of drug  delivered  to the lungs.  Only
                  small  amounts  of drug  deposit  in the mouth and  throat.  A
                  triggering and timing mechanism that is synchronized  with the
                  patient's  inspiratory  breath  control the  discharge  of the
                  metering valve. ADDS can accommodate  different flowrates,  so
                  any patient can activate the triggering device. Similarly, the
                  timing  mechanism  will  automatically   adjust  to  the  flow
                  generated by the patient,  delaying or hastening  discharge in
                  proportion  to the  total  volume  passing  through  the  flow
                  control  chamber.  This feature  accommodates  differences  in
                  inspiratory flow characteristic of pulmonary disease states in
                  children, adults and the infirm.

ADDS ADVANTAGES

                  The  performance  characteristics  of the ADDS are expected to
translate into multiple benefits, including:

                  IMPROVED  DRUG DELIVERY  EFFICIENCY.  The majority of the drug
                  emitted by the ADDS is  delivered to the lungs while less than
                  10% is lost through  deposition  in the mouth and throat.  The
                  improved delivery efficiency  enhances efficacy,  reduces side
                  effects   and   provides    greater    consistency   of   dose
                  administration.

                  GREATER  PATIENT  COMPLIANCE.  The ADDS  eliminates  technique
                  dependence  for  simple,   consistent  dose-to-dose  delivery,
                  resulting in improved compliance with prescribed therapy.

                  BROADER PATIENT BASE. The ADDS can be prescribed for a broader
                  patient base since it is designed to be  self-administered  by
                  children and the elderly as well as adult patients.

                  PHARMACOECONOMIC  BENEFIT.  The  ADDS has  increased  delivery
                  efficiency  with less waste, so patients can receive more unit
                  doses per standard canister. This allows for a lower drug cost
                  per day in addition to reducing  prescription  and payor costs
                  because fewer pharmacy visits are required.

ADDS PRODUCT PIPELINE IN DEVELOPMENT

                  The Company  believes that the ADDS technology  possesses many
potential  competitive  advantage  over other  inhalation  systems in both local
respiratory and systemic  applications.  It is applicable to all age categories,
eliminating  the most  troublesome  problems of aerosol  metered dose  delivery.
Increased  efficiency allows for potential  application to proteins and peptides
formerly discarded as candidates for aerosol delivery.


                                       8
<PAGE>

                  The   development  of  systemic  drugs  using  ADDS  is  being
conducted  as part of the  Company's  alliance  with Elan.  A range of  suitable
compounds has been  identified  and the first product has begun the  development
process. Therapeutic areas of interest to the Company include:

                  ADDS MIGRAINE THERAPY. Migraine headaches affect 16-18 million
                  Americans. Annual sales for the migraine therapy market are in
                  excess  of $1.3  billion  with  many  patients  unable  to get
                  satisfactory  relief from currently  available  therapies.  In
                  fact, it is estimated that  absenteeism  and medical  expenses
                  resulting  from migraine total $50 billion  annually.  Current
                  oral drug  therapies for the  treatment of migraine  headaches
                  have slow onset of action,  resulting  in a medical  need that
                  may be better satisfied through pulmonary delivery.

                  ADDS RESPIRATORY  THERAPIES.  The ADDS has broad  applications
                  across  respiratory  disease therapies since it utilizes basic
                  MDI  delivery  methods  that  are the  most  popular  forms of
                  respiratory delivery.  The ADDS technology's ability to vastly
                  minimize oral  deposition  makes it  especially  applicable to
                  steroids and steroid combinations with which fungal overgrowth
                  side  effects are  common.  In  addition,  U.S.  patients  and
                  physicians  have  indicated  that  they  prefer  metered  dose
                  aerosol  delivery.  The ADDS  technology is positioned to take
                  advantage of this built-in market preference for MDIs with its
                  potential for superior performance,  reduced adverse reactions
                  and  cost-effectiveness.  Inhaled  steroids  are  the  fastest
                  growing segment of the  respiratory  market and the largest in
                  Europe. The features of the ADDS directly minimize the aspects
                  of inhaled  steroids  that  remain a concern to  patients  and
                  physicians.  The market for  inhaled  steroids  on a worldwide
                  basis is approximately $1.5 billion.

                  As with MSI, there remains  opportunities  for developing ADDS
for a range of therapies either directly by the Company or in collaboration with
strategic  partners.  Unlike the MSI,  it is  potentially  advantageous  for the
Company  to  partner  on a  product-by-product  basis,  concentrating  on  prime
partners to launch the system commercially and to aid in subsequent  development
with products  developed  specifically  for exclusive  commercialization  by the
Company.

ULTRASONIC PULMONARY DRUG ABSORPTION SYSTEM

                  The Ultrasonic  Pulmonary Drug Absorption System ("UPDAS(TM)")
is a novel ultrasonic pulmonary delivery system designed by Elan as a disposable
unit dose  nebulizer  system.  UPDAS was designed  primarily for the delivery of
proteins,  peptides and other large  molecules to the lungs for absorption  into
the bloodstream.  Elan's  preliminary  research with UPDAS  demonstrated  unique
atomization that may prevent denaturing of bioactive molecules and particle size
distribution that meets the targets for local and systemic delivery. The Company
intends to  initiate  in-vitro  validation  testing  of UPDAS to confirm  Elan's
preliminary  results and to develop data to support patent  filings.  A plan for
additional  development of UPDAS will be prepared based upon the results of this
confirmational testing.

ENHANCING TECHNOLOGY

                  As part of the same  transaction in which the Company acquired
UPDAS,  the  Company  also  acquired  a  worldwide  exclusive  license to Elan's
Enhancing  Technology.  While  not  a  delivery  system  itself,  the  Enhancing
Technology  is a therapeutic  agent  identified by Elan to increase the systemic
absorption of drugs  delivered to the lungs.  The Enhancing  Technology  will be
utilized in conjunction with the Company's other pulmonary delivery systems. The
Company intends to complete the in-vitro  testing  necessary to substantiate the
unique  absorption  properties  of  the  Enhancing  Technology  that  have  been
identified by Elan. After this work is completed and analyzed, the Company plans
to determine the appropriate patent strategy to take and to begin development of
the Enhancing Technology for use in the Company's delivery systems.

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.  The Company has determined that its early stage  technologies do
not fit the  Company's  pulmonary  drug  delivery  strategy.  Consequently,  the
Company plans to out-license these technologies while maintaining an interest in
the  technologies'  promise without  incurring the development  costs associated
with early stage research and development.

                  Because the Company is no longer  funding these  projects,  it
may be at risk of losing its rights to certain of these technologies.  There can
be no  assurance  that the Company will be able to sell or license its rights to
any of its  remaining  early stage  research  projects or realize any  milestone
payments or other  revenue from those early stage  research  projects  that have
been previously divested.


                                       9
<PAGE>

                  ANTI-PROLIFERATIVE TECHNOLOGIES

                  The Company  holds rights to certain  compounds and their uses
for the treatment of conditions  characterized by unregulated cell proliferation
or cell growth and sickle  cell  anemia.  The  Company's  intellectual  property
portfolio  consists of  clotrimazole  ("CLT"),  its  metabolites and a number of
proprietary   new  chemical   entities   co-owned  by  the  Company  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.

                  The  Company  entered  into a license  arrangement  with Lorus
Therapeutics,   Inc.  (formerly  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 Lorus  Therapeutics  will  provide
funding and  management  of the  development  program.  The Company  holds a 20%
equity interest in NuChem.

                  Work on the lead  compounds  by NuChem has  progressed  in the
pre-clinical  phase.  NuChem  recently  announced that the U.S.  National Cancer
Institute has agreed to undertake  additional in vitro  screening  after initial
evaluation of the  compounds.  The initial IND for the lead compounds is planned
to be filed in early 2000.

                  The Company is actively  seeking to partner or license the use
of  clotrimazole  and the  Trifens  in the  fields of  sickle  cell  anemia  and
gastrointestinal disorders.

                  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  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 technology.  As consideration for the option, the third party will fund
an additional study related to the RBC-CD4 Electroinsertion  Technology. If this
option is exercised,  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.  The Company entered into a sublicense  agreement in July
1996  with  SEQUUS  Pharmaceuticals,  Inc.  for the  continued  development  and
commercialization of the Liposome-CD4 Technology.

                  HIV/AIDS VACCINE

                  The  Company  holds  an  exclusive   worldwide  license  to  a
potential  HIV/AIDS vaccine and diagnostic test under  development at the French
Institute of Health and Medical  Research.  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"),   which  could  serve  as  a  potential   prostate   cancer   therapy.
Identification  of UGIF as a growth inhibitory factor for certain prostate cells
was based upon  laboratory  studies  conducted at Baylor  Medical  College.  The
Company is seeking a partner for this technology.

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.


                                       10
<PAGE>
                  A new drug may not be legally  marketed for  commercial use in
the United States without 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  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 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 normal  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 limited 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 independent  investigators
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 requires 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.


                                       11
<PAGE>
                  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.

PATENTS AND TRADEMARKS

                  MSI SYSTEM PATENTS AND TRADEMARK

                  Under  its  agreement  with  Siemens  AG  for  the  technology
underlying the 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 three foreign  patent  applications  are
pending. In addition, the Company holds a trademark on "Premaire(TM)" as a brand
name for the MSI system.

                  AEROSOL DRUG DELIVERY SYSTEM PATENTS

                  As a result  of its  acquisition  of  ADDS,  the  Company  was
assigned the rights to one U.S.  patent  application  and three  foreign  patent
applications that are pending on ADDS.

                  EARLY STAGE RESEARCH TECHNOLOGY PATENTS

                  Under its  license  agreements  for its early  stage  research
projects,  the Company is  responsible  for  financing  and  prosecuting  patent
applications for the benefit of the owners and licensors of these  technologies.
While the Company holds several U.S. and foreign patents and patent applications
for these early stage technologies,  the Company expects to assign these patents
and applications to future acquirors, if any, of these technologies. Because the
Company does not intend to continue to pay for future patent fees on these early
stage  technologies,  in the  event  that  no  acquirors  are  found  for  these
technologies,  the  Company  expects  that it will  allow  some or all of  these
patents  and patent  applications  to lapse or the rights may be returned to the
licensors.

COMPETITION

                  The Company  competes 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.

EMPLOYEES

                  As of March 19, 1999, the Company employed 12 persons, five of
whom are executive officers.


                                       12
<PAGE>
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  $18,560,461  and  $9,489,138  for the fiscal years ended December 31,
1998 and 1997 and,  as of December  31,  1998,  the  Company had an  accumulated
deficit of $55,156,763.  The independent  auditors' report dated March 11, 1999,
on the Company's  consolidated  financial statements stated that the Company has
generated  only minimal  operating  revenue,  has incurred  recurring  operating
losses and will  require  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
additional  operating  losses  for 1999  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,  1998 was  $2,456,290.  As of such  date,  the  Company  had trade
payables of $615,138 and current research obligations of $449,805.  In addition,
committed and/or anticipated  funding of research and development after December
31, 1998 is estimated at approximately $2,076,000.  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  in the  foreseeable  future.  The  development  of  the  Company's
technologies  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 Company's  pulmonary
delivery  technologies,  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.

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.


                                       13
<PAGE>
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.

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.

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 


                                       14
<PAGE>
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 MSI system,  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.

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 guidelines of the AMEX,  including the AMEX guideline 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, 1998,  had  stockholders'  equity of  $655,205.  The
failure to meet the AMEX  listing  guidelines  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  


                                       15
<PAGE>
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/pharmaceutical    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  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.

OUTSTANDING OPTIONS, WARRANTS AND CONVERTIBLE SECURITIES; 
DILUTION

                  As  of  December   31,   1998,   the   Company  had   reserved
approximately 7,910,836 shares of its Common Stock for issuance upon exercise of
outstanding  options and warrants  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, 1998, the Company had $1,000,000  principal amount of a Convertible
Promissory  Note  and  11,914  shares  of its  Series C  Cumulative  Convertible
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 Series C Preferred Stock are convertible  into 8,449,647  shares of
Common Stock and the  Convertible  Promissory  Note is convertible  into 571,428
shares of Common Stock.  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 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.  The  Company  issued  Series  A and  Series  B  Cumulative
Convertible  Redeemable Preferred Stock in connection with private placements in
February 1997 and April 1998, respectively.  All of the Series A Preferred Stock
was converted into common stock during 1998. On July 31, 1998, all of the Series
B Preferred  Stock was redeemed for cash.  The Company also issued shares of its
Series  C  Cumulative   Convertible  Preferred  Stock  in  connection  with  the
consummation  of an agreement with Elan in June 1998. The Company has no present
intention to issue any  additional  shares of its  preferred  stock  (except for
additional  shares of its Series C Preferred Stock that are payable as dividends
to Elan, as holder of the outstanding Series C 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  research  facility  in Ann  Arbor,  Michigan,  and  leases a small  office in
Pittsford,  New York.  The Company  maintains no other  laboratory,  research or
other  facilities,  but primarily  conducts  research and development in outside
laboratories  under  contracts with  universities  or research  facilities.  The
Company believes that its existing office  arrangements will be adequate to meet
its reasonably foreseeable needs.

ITEM 3.           LEGAL PROCEEDINGS

                  There are no material legal proceedings against the Company or
any of its subsidiaries.

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

                  None.

                                       16
<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.

1998:                                HIGH                      LOW
                                     ----                      ---
        Fourth Quarter.....   $      2.500                     .938
        Third Quarter......          2.500                    1.063
        Second Quarter.....          2.313                     .625
        First Quarter......          1.438                     .625
1997:
        Fourth Quarter.....      $   2.500                    1.125
        Third Quarter......          3.000                    2.000
        Second Quarter.....          3.375                    2.250
        First Quarter......          3.750                    2.625



                  The closing sale price for the  Company's  Common Stock on the
AMEX on March 19,  1999 was $2.25 per  share.  At March  19,  1999,  there  were
approximately 427 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 C Cumulative  Convertible  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 C Preferred Stock have been paid or declared in full.
During 1998, the Company issued stock dividends  totaling 414 shares of Series C
Preferred Stock and cash dividends for fractional shares of $1,112.

                  The  following  unregistered  securities  were  issued  by the
Company during the quarter ended December 31, 1998:

<TABLE>
<CAPTION>
                                               Number Of Shares
                                                 Sold/issued/       Offering/
                          Description Of       Subject To Options   Exercise Price 
Date Of Sale/Issuance   Securities Issued        Or Warrants        Per Share ($)     Purchaser Or Class
- ---------------------   -----------------      -------------------  --------------    ------------------
<S>                     <C>                         <C>             <C>                   <C>
November 1998           Common Stock Options        120,000         $1.688 - $3.688       Employee

</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.


                                       17
<PAGE>
ITEM 6.  SELECTED FINANCIAL DATA

                         SELECTED FINANCIAL INFORMATION
                   (In dollars, except per share information)

The  information  in the  following  table  should be read in  conjunction  with
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations" under Item 7 and the Company's Consolidated Financial Statements and
related Notes under Item 8.

<TABLE>
<CAPTION>
                                                                                     Year-Ended December 31
                                                     -------------------------------------------------------------------------------
                                                          1998              1997              1996           1995          1994
                                                     -------------------------------------------------------------------------------
STATEMENT OF OPERATIONS DATA:
<S>                                                  <C>               <C>               <C>            <C>            <C>         
Sublicense and interest income ....................  $    410,273      $    556,914      $    673,664   $     80,610   $     63,290

Operating costs and expenses:

     Research and development .....................    15,676,301(a)      5,379,193(a)      3,841,818      4,424,154      3,989,838

     General and administrative ...................     3,294,433         4,666,859         3,840,735      3,044,173      2,393,082
                                                     ------------      ------------      ------------   ------------   ------------

     Total operating costs and expenses ...........    18,970,734        10,046,052         7,682,553      7,468,327      6,382,920

Loss from operations ..............................  $(18,560,461)     $ (9,489,138)     $ (7,008,889)  $ (7,387,717)  $ (6,319,630)

Loss per share of common stock - basic ............  $      (0.85)     $      (0.80)     $      (0.65)  $      (0.90)  $      (0.96)

Weighted average common shares outstanding ........    21,931,040        11,976,090        10,806,799      8,185,457      6,596,227


BALANCE SHEET DATA:

Working capital (net deficiency) ..................     1,456,833      $   (837,564)     $  1,433,773   $  1,585,675   $   (799,629)

Total assets ......................................     2,862,521           689,937         2,773,884      2,221,050        371,073

Long-term obligations & redeemable preferred stock      1,000,000         4,019,263            27,206           --             --

Accumulated deficit ...............................   (55,156,763)      (36,157,290)      (26,588,652)   (19,579,763)   (12,192,046)

Stockholders' equity (net capital deficiency) .....       655,205        (4,716,751)        1,695,837      1,792,363       (573,853)
</TABLE>

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

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

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.


(a) Includes  $13,325,000  and $1,650,000 of acquired  research and  development
in-process technology in 1998 and 1997, respectively.

                                       18
<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 under Canadian law in October 1986. In May 1992, the Company became
domesticated  as a Wyoming  corporation  pursuant to a  "continuance"  procedure
under Wyoming law. In January  1995,  the  Company's  shareholders  approved the
proposal to reincorporate Sheffield in Delaware,  which was effected on June 13,
1995. 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.  In June 1997,  the  Company's
shareholders  approved the proposal to change  Sheffield's  name from  Sheffield
Medical  Technologies  Inc.  to  Sheffield  Pharmaceuticals,  Inc. As part of an
agreement  with  Elan  Corporation  plc  ("Elan"),  on June 30,  1998,  Systemic
Pulmonary Delivery,  Ltd. ("SPD") was formed as a wholly owned subsidiary of the
Company.  At that  time,  SPD  acquired  the  Company's  rights to the  systemic
applications of the MSI and acquired Elan's rights to certain pulmonary delivery
technologies.  Unless the context requires otherwise, Sheffield, Ion, CP and SPD
are referred herein to as "the Company".

                  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 will require  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 1999 is dependent upon  obtaining  additional
funding.

                  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.

RESULTS OF OPERATIONS

REVENUE

                  Sublicense  revenue of  $350,000  and  $500,000  for the years
ended December 31, 1998 and 1997, respectively, relate to a sublicense agreement
entered into during 1997 with Lorus  Therapeutics,  Inc. (formerly Imutec Pharma
Inc.). The agreement  licensed rights to a series of compounds for the treatment
of cancer,  Kaposi's  sarcoma and actinic  kerotosis to a newly formed  company,
NuChem Pharmaceuticals,  Inc. ("NuChem") for which Lorus Therapeutics, Inc. will
provide funding and management of the development  program. The Company received
$500,000 in cash upon signing the agreement in 1997 and received  583,188 shares
of Lorus  Therapeutics,  Inc.  stock  with a value  of  $350,000  in  1998.  The
sublicense revenue of $510,000 in 1996 related to a sublicense agreement for the
Company's  Liposome - CD4  technology.  Interest income was $60,273 for the year
ended  December  31, 1998  compared to $56,914 and  $163,664 for the years ended
December 31, 1997 and 1996,  respectively.  The decrease in 1997 interest income
of $106,750  compared to 1996,  was due primarily to the use of funds  available
for investment as a result of the acquisition of the MSI system from Siemens AG.


                                       19
<PAGE>
ACQUISITION OF RESEARCH & DEVELOPMENT IN-PROCESS TECHNOLOGY

                  Acquisition of research and development  in-process technology
for the years ended December 31, 1998, 1997 and 1996 was $13,325,000, $1,650,000
and $0,  respectively.  The decrease  from 1997 to 1998 is  attributable  to the
acquisition of the Aerosol Drug Delivery System  ("ADDS") from  Aeroquip-Vickers
for $825,000 and the acquisition of certain pulmonary delivery technologies from
Elan for  $12,500,000.  The 1997 amounts are  attributable to the acquisition of
Camelot  Pharmacal,  LLC. The acquisitions noted above were expensed in the year
acquired since the technologies had not demonstrated  technological  feasibility
and had no alternative future uses.

RESEARCH AND DEVELOPMENT

                  Research and development expenses were $2,351,301 for the year
ended  December 31, 1998 compared to  $3,729,193  and  $3,841,818  for the years
ended December 31, 1997 and 1996, respectively.  The decrease of $1,377,892 from
1997 to 1998  reflects both the  Company's  continued  winding down of its early
stage  research  projects and the  shifting of  responsibility  for  development
expenses of the respiratory  applications  of the MSI to the Company's  partner,
Zambon Group SpA ("Zambon").  This decrease was partially  offset by development
costs  associated  with the ADDS  technology  acquired  in July  1998.  The 1997
decrease of $112,625 was attributable to the commencement of winding down of the
Company's early stage technologies.

                  The Company  entered into three R&D  transactions  in 1998. In
June, the Company  entered into an agreement  with Zambon,  whereby Zambon would
receive  an  exclusive  worldwide  marketing  and  development   sublicense  for
respiratory  products to be delivered by the MSI system.  Under this  agreement,
Zambon is responsible for the research and development costs associated with the
respiratory  applications  of the MSI. In addition,  SPD also  acquired  certain
pulmonary  delivery  technologies  from Elan. The Company is responsible for the
development of these technologies. In addition, SPD acquired the ADDS technology
from Aeroquip-Vickers.  SPD holds the rights to all systemic applications of the
ADDS technology,  while Sheffield  retains the rights to develop the respiratory
disease   applications.   The  Company  is  responsible  for  the  research  and
development costs of these systemic applications.  Subject to certain conditions
and the  making of  certain  payments  to the  Company,  Elan has the  option to
acquire all or a portion of the outstanding stock of SPD.

GENERAL AND ADMINISTRATIVE EXPENSES

                  General and  administrative  expenses were  $3,043,070 for the
year ending  December 31, 1998 compared to  $4,627,567  and  $3,831,204  for the
years ending December 31, 1997 and 1996, respectively. The decrease from 1997 to
1998 of  $1,584,497  was due to  lower  compensation  expense  reflecting  fewer
employees during 1998 and the extension of certain option and warrant agreements
in 1997. The 1998 decrease also reflects lower  consulting  costs resulting from
expenses  associated with two financings  completed in 1997, and a loss realized
on the sale of securities during 1997. The increase from 1996 to 1997 was due to
an  increased  number  of  management   salaries   resulting  from  the  Camelot
acquisition,  compensation  expense  associated  with the  extension  of certain
option and  warrant  agreements,  and  expenses  related  to the two  financings
completed during 1997.

INTEREST EXPENSE

                  Interest expense was $251,363 for the year ending December 31,
1998 compared with $39,292 and $9,531 for the years ending December 31, 1997 and
1996,  respectively.  The  increase  of $212,071 in 1998 as compared to 1997 was
primarily due to interest paid on the Company's Series B Cumulative  Convertible
Preferred Stock and the Convertible Promissory Note issued to Elan. The increase
from 1996 to 1997 of $29,761 was  attributable  to the Company's 6%  Convertible
Subordinated Debenture issued during 1997.

LIQUIDITY AND CAPITAL RESOURCES

                  Since its  inception,  the Company has financed its operations
primarily through the sale of securities and convertible debentures,  from which
it has raised an aggregate of  approximately  $49 million  through  December 31,
1998.


                                       20
<PAGE>
                  On April 15,  1998,  the Company  issued  1,250  shares of its
Series  B  Cumulative  Convertible  Redeemable  Preferred  Stock  in  a  private
placement for an aggregate purchase price of $1,250,000.  The proceeds were used
to make payment to Siemens A.G.  pursuant to the MSI license  agreement.  During
1998, the Company entered into a sublicense  agreement with Zambon that provided
the Company  $2,150,000 in gross  proceeds from the sale of 2,646,153  shares of
Common Stock. The Company also entered into an agreement with Elan that provided
the  Company  approximately  $17,500,000  of  gross  proceeds  from  the sale of
4,571,428  shares of Common Stock and 11,500  shares of the  Company's  Series C
Cumulative  Convertible  Preferred Stock. The proceeds from the Elan transaction
were used to purchase certain  pulmonary device delivery  technologies from Elan
for  $12,500,000,  the ADDS for $825,000  from  Aeroquip-Vickers,  and to redeem
$1,250,000  principal amount of Series B Preferred Stock. The remaining proceeds
from the Elan  transaction  were  used for  research  and  development,  working
capital and general corporate purposes.

                  From inception  through  December 31, 1998, the Company earned
$514,100 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 $18,685,726
for the year ended December 31, 1998 compared with $6,677,405,  $6,043,876,  and
$48,882,176  for the years ended  December 31, 1997 and 1996, and from inception
in 1986 through 1998, respectively. Cash of $20,900,000, $3,284,812, $6,420,834,
and $48,855,005 was provided by the issuance of equity securities in 1998, 1997,
1996, and from inception in 1986 through 1998, respectively.

                  The  Company's  total assets were  $2,862,521  at December 31,
1998  compared  with  $689,937  at  December  31,  1997.  The 1998  increase  of
$2,172,584 was primarily  attributable  to proceeds  received from the agreement
entered  into with  Elan.  The  Company's  liabilities  at  December  31,  1998,
consisting of accounts payable, sponsored research, capital lease obligations, a
note payable and a convertible  promissory  note, were $2,207,316  compared with
$2,938,425 at December 31, 1997.

                  The Company spent  approximately  $21,600,000  from  inception
through December 31, 1998 to fund certain ongoing  technology  research projects
and expects to incur additional costs in the future, including costs relating to
its ongoing  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.

                  The Company's  direct research and development  (R&D) expenses
for its pulmonary  delivery  systems were $1,847,652 for the year ended December
31, 1998 and $3,792,500  from inception  through  December 31, 1998. The Company
has  committed to fund an additional  $2,076,000  for these  pulmonary  delivery
systems after  December 31, 1998. The Company  incurred  $21,693 of R&D costs in
1998  associated  with its early  stage  technologies,  which  includes  RBC-CD4
Electroinsertion  technology,  Liposome-CD4  technology,  HIV/AIDS vaccine, UGIF
technology-prostate cancer, and anti-proliferative  technologies. From inception
to December 31, 1998, the Company  incurred R&D expenses of $15,221,468 on these
technologies.  Since the  Company  is focused on  development  of its  pulmonary
delivery  systems,  it does not  anticipate  incurring  additional  research  or
development costs for these early stage projects.

                  Because  the Company  does not expect to generate  significant
cash flows from operations for at least the next few 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.


                                       21
<PAGE>
                  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.

YEAR 2000 COMPLIANCE

                  The  inability  of  computers,  software  and other  equipment
utilizing   microprocessors  to  recognize  and  properly  process  data  fields
containing a two digit year is commonly  referred to as the Year 2000 compliance
issue. Such systems that are not Year 2000 compliant may not be able to properly
interpret dates beyond the Year 1999,  which could lead to business  disruptions
in  the  U.S.  and  internationally.   The  potential  costs  and  uncertainties
associated  with the Year  2000  issue  will  depend  on a  number  of  factors,
including  software,  hardware and the nature of the industry in which a company
operates. Additionally, companies must coordinate with other entities with which
they electronically interact, such as customers, creditors and borrowers.

                  During  1998,  the  Company  conducted  an  assessment  of its
computer  systems to  identify  systems  that could be affected by the Year 2000
issue.  Substantially  all  software  programs  used by the  Company  have  been
determined to be Year 2000  compliant.  In addition,  the Company  believes that
with readily available upgrades to existing  hardware,  the Year 2000 issue will
not  pose  significant   operational  problems  for  its  computer  system.  The
completion of hardware  modifications to assure Year 2000 compliance is expected
by the end of the second quarter of 1999.

                  The Company relies on various  universities  and  laboratories
for  conducting a  significant  portion of the research and  development  of its
products.  The Company is  currently  in the process of  communicating  with the
parties with which it does  significant  business to  determine  their Year 2000
compliance  readiness  and the extent to which the Company is  vulnerable to any
third party Year 2000 issues.  The Company expects to complete its assessment of
Year 2000 compliance of these third parties by July 1999. However,  there can be
no guarantee  that the systems of other  companies  on which the Company  relies
will be timely converted or that a failure to convert by another  company,  or a
conversion  that is  incompatible  with the  Company's  systems,  would not have
material adverse effect on the Company.

                  The total cost to the  Company  of these Year 2000  compliance
activities is estimated to be less than $25,000,  and is not  anticipated  to be
material to its financial position or results of operations. These costs and the
date on which the  Company  plans to  complete  the Year 2000  modification  and
testing processes are based on management's  best estimates,  which were derived
utilizing  numerous   assumptions  of  future  events  including  the  continued
availability  of certain  resources,  third party  modification  plans and other
factors.  However,  there  can be no  assurance  that  these  estimates  will be
achieved and actual results could differ from those plans.

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

                  The Company has no material market risk exposure.

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.


                                       22
<PAGE>
ITEM 10.          DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS AND CONTROL PERSONS; 
                  COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT



DIRECTORS AND EXECUTIVE OFFICERS

                  The directors and executive  officers of the Company and their
positions with the Company are set forth below.

NAME                         AGE         POSITION
Thomas M. Fitzgerald         48          Chairman and Director
Loren G. Peterson            42          President, Chief Executive Officer, and
                                           Director
John M. Bailey               51          Director
Digby W. Barrios             61          Director
Todd C. Davis                37          Director
George R. Griffiths          51          Director
David A. Byron               50          Executive Vice President - Scientific 
                                           Affairs
Carl. F. Siekmann            55          Executive Vice President - Corporate 
                                           Development
Scott A. Hoffmann            34          Vice President - Finance and 
                                           Administration, Treasurer and 
                                           Secretary, Chief Financial Officer

                  THOMAS M.  FITZGERALD.  Mr.  Fitzgerald has been a Director of
the Company since September 1996 and has served as Chairman of the Company since
December 1997. From June 1996 to December 1997, Mr.  Fitzgerald  served as Chief
Operating  Officer of the Company and, from  February 1997 to December  1997, he
served as  President of the Company.  From 1989 to 1996 Mr.  Fitzgerald  was the
Vice President and General Counsel of Fisons  Corporation,  an operating unit of
Fisons Group plc, a U.K.-based ethical  pharmaceutical  company ("Fisons").  Mr.
Fitzgerald was Assistant General Counsel of SmithKline  Beecham prior to joining
Fisons.

                  LOREN G. PETERSON.  Mr.  Peterson has been the Chief Executive
Officer and a Director of the Company since April 1997. Mr.  Peterson has served
as  President of the Company  since  December  1997.  From January 1997 to April
1997, Mr.  Peterson was a principal of Camelot  Pharmacal,  L.L.C.,  a privately
held pharmaceutical  development  company he co-founded.  From 1993 to 1996, Mr.
Peterson served as Vice President - Finance and Chief Financial  Officer of Bock
Pharmacal Company, a privately held pharmaceutical  company.  From 1989 to 1993,
Mr. Peterson was a partner of the accounting firm of Coopers & Lybrand LLP.

                  JOHN M. BAILEY.  Mr. Bailey has been a Director of the Company
since April 1997.  Mr. Bailey is the founder and majority  shareholder of Bailey
Associates,  a consultancy  specializing  in providing  companies with strategic
advice and support through mergers, collaborations and divestments. From 1978 to
1996,  Mr.  Bailey  was  employed  by  Fisons,  where he held a number of senior
positions. In 1993, Mr. Bailey was appointed to the main board of Fisons and, in
1995, he was appointed Corporate Development Director of Fisons. In that role he
was directly  responsible for worldwide strategic and corporate  development and
for all merger,  divestment,  acquisition and business development activities of
Fisons Group worldwide.


                                       23
<PAGE>
                  DIGBY W.  BARRIOS.  Mr.  Barrios  has been a  Director  of the
Company since April 1997. Since 1992, Mr. Barrios has been a private  consultant
to the  pharmaceutical  industry.  Mr.  Barrios  served  from  1985  to  1987 as
Executive Vice President, and from 1988 to 1992 as President and Chief Executive
Officer,  of Boehringer  Ingelheim  Corporation.  Mr. Barrios is a member of the
Board of Directors of Sepracor  Inc.,  Roberts  Pharmaceutical  Corporation  and
Cypros Pharmaceutical Corporation.

                  TODD C.  DAVIS.  Mr.  Davis has been a Director of the Company
since  September  1998.  Since May 1997,  Mr.  Davis has served as  Director  of
Investments   and  Corporate   Development  of  Elan   Pharmaceutical   Research
Corporation,  an  affiliate  of Elan  Corporation  plc, an Irish  pharmaceutical
company.  From September  1995 to May 1997,  Mr. Davis was on educational  leave
from Abbott Laboratories, a pharmaceutical company, while receiving a Masters in
Business Administration from Harvard University.  From October 1993 to September
1995, Mr. Davis served as diagnostic  systems product manager,  and from October
1992 to September 1993 as product specialist of laboratory  information  systems
of Abbott Laboratories.

                  GEORGE R. GRIFFITHS.  Mr. Griffiths has been a Director of the
Company since July 1998.  Since June 1996,  Mr.  Griffiths has served as General
Manager of Zambon  Corporation,  USA, the North  American  subsidiary  of Zambon
Group, SpA, a private Italian pharmaceutical company. From December 1995 to June
1996,  Mr.  Griffiths  served as Senior Vice  President for  Pharmaceuticals  of
Zambon  Corporation,  USA and also  from  January  1996 to June 1996 he held the
position of Vice  President of Business  Development.  From July 1992 to January
1996, Mr.  Griffiths served as Director of New  Products/Specialty  Products for
Johnson & Johnson's Company's Janssen Pharmaceutica Division.

                  DAVID A. BYRON.  Mr. Byron has been Executive Vice President -
Scientific  Affairs of the Company since April 1997.  From January 1997 to April
1997, Mr. Byron was a principal of Camelot  Pharmacal,  L.L.C., a privately held
pharmaceutical  development  company he co-founded.  From 1994 to December 1996,
Mr.  Byron  served as Vice  President of  Scientific  Affairs of Bock  Pharmacal
Company,  a privately  held  pharmaceutical  company.  From 1990 to 1994,  Byron
served  as  Senior  Director  -  New  Product   Development  of  Sanofi-Winthrop
Pharmaceutical Corporation.

                  CARL  F.  SIEKMANN.  Mr.  Siekmann  has  been  Executive  Vice
President - Corporate  Development of the Company since April 1997. From January
1997 to April 1997, Mr. Siekmann was a principal of Camelot Pharmacal, L.L.C., a
privately held pharmaceutical  development  company he co-founded.  From 1992 to
1996,  Mr.  Siekmann  served as Vice  President of Business  Development of Bock
Pharmacal Company, a privately held pharmaceutical company.

                  SCOTT A.  HOFFMANN.  Mr.  Hoffmann  has been  Chief  Financial
Officer and Vice President - Finance and Administration, Treasurer and Secretary
of the  Company  since  November  1998.  From March 1995 to November  1998,  Mr.
Hoffmann was Assistant Controller of Zeigler Coal Holding Company, a coal mining
company.  From 1992 to 1995,  Mr.  Hoffmann  was Vice  President  - Finance  and
Secretary of Zam's, Inc., a publicly-traded retailer.

MEETINGS AND COMMITTEES

                  The Board of  Directors  of the  Company  held  five  meetings
during the fiscal year ended  December 31,  1998.  From time to time during such
fiscal year, the members of the Board acted by unanimous  written  consent.  The
Company has standing Stock Option, Compensation, and Audit Committees. The Stock
Option  Committee  reviews,  analyzes and approves  grants of stock  options and
stock to eligible  persons  under the  Company's  1993 Stock Option Plan and the
Company's 1993  Restricted  Stock Plan. The current  members of the Stock Option
Committee  (appointed in June 1997) are Digby W. Barrios and John M. Bailey. The
Stock Option Committee held one meeting in 1998, and approved certain actions by
written  consent.  The  Compensation  Committee  reviews,   analyses  and  makes
recommendations  to the Board of  Directors  regarding  compensation  of Company
directors, employees,  consultants and others, including grants of stock options
(other than stock option grants under the  Company's  1993 Stock Option Plan and
the Company's Directors Plan). The current members of the Compensation Committee
(appointed  in  June  1997)  are  Digby  W.  Barrios  and  John M.  Bailey.  The
Compensation  Committee held four meetings in 1998, and approved certain actions
by  written   consent.   The  Audit  Committee   reviews,   analyzes  and  makes
recommendations  to the  Board  of  Directors  with  respect  to  the  Company's
compensation and accounting policies,  controls and statements,  and coordinates
with the Company's  independent public  accountants.  The current members of the
Audit Committee (appointed in June 1997) are Loren G. Peterson, Digby W. Barrios
and John M. Bailey.  The Audit  Committee  held one formal  meeting in 1998. The
Company  does not have a standing  nominating  committee  or a  committee  which
serves nominating functions.


                                       24
<PAGE>
ITEM 11.           EXECUTIVE COMPENSATION

                  The  following   table  sets  forth,   for  the  fiscal  years
indicated, all compensation awarded to, earned by or paid to the chief executive
officer of the Company ("CEO") and the executive  officers of the Company (other
than the CEO) who were executive  officers of the Company during the fiscal year
ended  December  31,  1998 and whose  salary and bonus  exceeded  $100,000  with
respect to the fiscal year ended December 31, 1998.

                           SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
                                                                                         Long-Term
                                                                                        Compensation
                                                  Annual Compensation                     Awards
                                                  -------------------                   -------------
                                                                     Other Annual        Securities
     Name and                                                        Compensation        Underlying
Principal Position                   Year    Salary($)    Bonus($)      ($)(1)           Options(#)
- ------------------                   ----    ---------    --------      ------           ----------
<S>                                  <C>      <C>         <C>             <C>             <C>
                                     1998    $175,000     $40,000         --              255,000
Thomas M. Fitzgerald,                1997     175,000        --           --              300,000
  Chairman...........................1996      94,792        --           --

Loren G. Peterson, President,        1998    $175,000        --           --              155,000
  Chief Executive Officer............1997     118,655        --           --              400,000


David A. Byron, Executive Vice       1998    $160,000        --           --              105,000
  President, Scientific Affairs......1997     108,485        --           --              400,000

Carl F. Siekmann, Executive Vice     1998    $160,000        --           --              105,000
  President, Corporate Development...1997     108,485        --           --              400,000

Judy Roeske - Bullock, former 
  Vice  President, Finance 
  & Administration,                  1998    $149,808        --           --
  Chief Financial Officer(2).........1997      18,750        --           --              130,000
</TABLE>

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

(1)      Perquisites  and  other  personal  benefits,   securities  or  property
         delivered  to each  executive  officer  did not  exceed  the  lesser of
         $50,000 or 10% of such executive's salary and bonus.

(2)      Ms.  Roeske-Bullock  resigned from the Company  effective  November 15,
         1998.

                                       25
<PAGE>

                  The following table sets forth certain  information  regarding
stock option grants made to Messrs.  Fitzgerald,  Peterson,  Byron, and Siekmann
during the fiscal year ended December 31, 1998.

                        OPTION GRANTS IN LAST FISCAL YEAR

                                Individual Grants

<TABLE>
<CAPTION>
                                                                  % Of Total
                                                                   Options
                                                                  Granted To                                            Grant Date
                                                    Options      Employees In   Exercise Or Base                       Present Value
          Name                                     Granted (#)    Fiscal Year     Price ($/Sh)        Expiration Date     $ (1)     
- --------------------------------------------       -----------   -------------  -----------------     ---------------  -------------
<S>                                                <C>                <C>       <C>                   <C>                   <C>
Thomas M. Fitzgerald,
Chairman ...................................       255,000(2)         23.9%     $1.2375 - 3.125       August 28, 2008       $235,600


Loren G. Peterson, President,
Chief Executive Officer ....................       155,000(2)         14.6%     $1.2375 - 3.125       August 28, 2008        139,400


David A. Byron,
Executive Vice President,
Vice President, Scientific
Affairs ....................................       105,000(2)          9.9%     $1.2375 - 3.125       August 28, 2008         94,150


Carl F. Siekmann,
Executive Vice President,
Corporate Development ......................       105,000(2)          9.9%     $1.2375 - 3.125       August 28, 2008         94,150

</TABLE>
(1)      The present value of options at date of grant was  estimated  using the
         Black-Scholes model with the following assumptions: 1) expected life of
         10 years;  2) risk-free  interest rate of 4.9%; 3) volatility of 69.4%;
         and 4) dividend yield of 0%.

(2)      These  options were granted  under a single  option grant with exercise
         prices ranging from $1.2375 to $3.125.


                                       26
<PAGE>
                  The following table sets forth certain  information  regarding
stock options held by Messrs. Fitzgerald, Peterson, Byron, and Siekmann, and Ms.
Bullock as of December 31, 1998.

                           AGGREGATED OPTION EXERCISES
                       DURING THE MOST RECENTLY COMPLETED
                  FISCAL YEAR AND FISCAL YEAR-END OPTION VALUES

<TABLE>
<CAPTION>
                                                                                               
                                                                    No. of Securities          
                                                                         Shares                 Value (1) of  
                                                                       Underlying              Unexercised in-
                                                                       Unexercised                the-Money   
                                                                      Options at FY-           Options at FY- 
                                            Shares                        End (#)                  End($)     
                                          Acquired on      Value       Exercisable/              Exercisable/
            Name                          Exercise(#)     Realized     Unexercisable             Unexercisable
            ----                          -----------     --------     -------------             -------------
<S>                                          <C>           <C>      <C>                         <C>
Thomas M. Fitzgerald,
  Chairman.............................      --            --       150,000/405,000             --/$171,063
Loren G. Peterson,
  President and Chief Executive          
  Officer..............................      --            --       40,000/515,000              --/$75,063
David A. Byron,
  Executive Vice President,            
  Scientific Affairs...................      --            --       40,000/465,000              --/$48,563
Carl F. Siekmann,
  Executive Vice President,            
  Corporate Development................      --            --       40,000/465,000              --/$48,563
Judy Roeske - Bullock,
  former Vice President, Finance   &
  Administration,
  Chief Financial Officer..............      --            --          25,000/--                 $9,375/--
</TABLE>
- -------------------
(1)      Represents  the total gain that would be realized  if all  in-the-money
         options  held at  December  31,  1998  were  exercised,  determined  by
         multiplying  the  number  of  shares  underlying  the  options  by  the
         difference  between the per share option exercise price and the closing
         sale price of Common Stock of $2.375 per share reported on the American
         Stock Exchange for December 31, 1998. An option is  in-the-money if the
         fair market value of the  underlying  shares exceeds the exercise price
         of the option.

BOARD OF DIRECTORS COMPENSATION

                  The Company does not  currently  compensate  directors who are
also  executive  officers of the Company or directors  who are  employees of the
Company's  alliance partners for their service on the Board of Directors.  Under
current Company policy, each non-employee Director of the Company receives a fee
of $750 for each  Board  meeting  attended  and  $400 for each  Board  committee
meeting  attended.  Directors  are  reimbursed  for their  expenses  incurred in
attending meetings of the Board of Directors.

LONG-TERM INCENTIVE AND PENSION PLANS

                  During the year ended December 31, 1996, the Company adopted a
defined  contribution  401(k) plan in accordance with the Internal Revenue Code.
Employees  are eligible to  participate  in the 401(k) plan upon  completion  of
three months of service provided they are over 21 years of age. Participants may
defer  up to 15% of  eligible  compensation.  Currently,  the  Company  does not
provide matching contributions under the 401(k) Plan.




                                       27
<PAGE>
OTHER

                  No director or  executive  officer is involved in any material
legal proceeding in which he is a party adverse to the Company or has a material
interest adverse to the Company.

EMPLOYMENT AGREEMENTS

                  In June 1996, the Company entered into a three-year employment
agreement with Thomas M. Fitzgerald  pursuant to which Mr.  Fitzgerald agreed to
serve as Chief  Operating  Officer  of the  Company.  The  employment  agreement
requires Mr.  Fitzgerald  to devote his full business and  professional  time in
furtherance of the business of the Company. Such agreement  automatically renews
for successive  one-year  terms unless one party provides  written notice to the
other of his or its intent to  terminate at least six months prior to the end of
the then current term. If Mr.  Fitzgerald's  employment is terminated other than
for cause, he is entitled to receive a severance payment of $87,500,  payable in
six  equal  monthly   installments.   The  agreement  contains  non-compete  and
confidentiality  provisions.  Mr.  Fitzgerald's  annual  base  salary  under the
agreement is currently $175,000.

                  In April 1997, the Company entered into a five-year employment
agreement with Loren G. Peterson  pursuant to which Mr. Peterson agreed to serve
as  Chief  Executive  Officer  of the  Company.  The  term of the  agreement  is
automatically  extended for an additional one year term from year to year unless
one party  notifies the other of its  intention to terminate at least six months
prior to the end of the then current term. The employment agreement requires Mr.
Peterson to devote his full business and professional time in furtherance of the
business of the Company.  If Mr. Peterson's  employment is terminated other than
for cause, he is entitled to receive a severance payment of $131,250, payable in
nine   equal   monthly   installments.   The   employment   agreement   includes
confidentiality  and non-compete  provisions.  Mr. Peterson's annual base salary
under the employment agreement is currently $175,000.

                  In April 1997, the Company entered into a five-year employment
agreement  with David A. Byron  pursuant to which Mr.  Byron  agreed to serve as
Executive  Vice President - Scientific  Affairs of the Company.  The term of the
agreement is automatically extended for an additional one year term from year to
year unless one party  notifies the other of its intention to terminate at least
six months prior to the end of the then current term. The  employment  agreement
requires  Mr.  Byron  to  devote  his full  business  and  professional  time in
furtherance  of the  business  of the  Company.  If Mr.  Byron's  employment  is
terminated  other than for cause, he is entitled to receive a severance  payment
of  $120,000,  payable  in  nine  equal  monthly  installments.  The  employment
agreement includes  confidentiality and non-compete  provisions.  The employment
agreement  includes  confidentiality  and  non-compete  provisions.  Mr. Byron's
annual base salary under the employment agreement is currently $160,000.

                  In April 1997, the Company entered into a five-year employment
agreement with Carl F. Siekmann  pursuant to which Mr.  Siekmann agreed to serve
as Executive Vice President - Corporate  Development of the Company. The term of
the agreement is  automatically  extended for an  additional  one year term from
year to year unless one party  notifies the other of its  intention to terminate
at least six months prior to the end of the then current  term.  The  employment
agreement  requires Mr.  Siekmann to devote his full  business and  professional
time in furtherance of the business of the Company. If Mr. Siekmann's employment
is  terminated  other  than for cause,  he is  entitled  to receive a  severance
payment of $120,000, payable in nine equal monthly installments.  The employment
agreement includes  confidentiality and non-compete  provisions.  Mr. Siekmann's
annual base salary under the employment agreement is currently $160,000.

COMPLIANCE WITH SECTION 16(A) OF THE SECURITIES EXCHANGE ACT OF 1934

                  Section  16(a) of the  Securities  Exchange  Act of  1934,  as
amended, requires the Company's officers and directors, and persons who own more
than ten percent of a registered  class of the Company's equity  securities,  to
file  reports of  ownership  and changes in ownership  with the  Securities  and
Exchange Commission (the "Commission"). Officers, directors and greater than ten
percent shareholders are required by the Commission's regulations to furnish the
Company  with copies of all  Section  16(a)  forms they file.  To the  Company's
knowledge,  all Section  16(a) forms that were  required to be filed  during the
fiscal year ended December 31, 1998 were filed in compliance with the applicable
requirements  of Section  16(a) except as follows:  Form 3's were filed late for
each  of  Todd C.  Davis  and  George  R.  Griffiths.


                                       28
<PAGE>
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

                  The  compensation  of  the  Company's  senior   management  is
determined  by a  Compensation  Committee,  presently  consisting  of,  Digby W.
Barrios and John M. Bailey. None of the members of the Compensation Committee is
an executive officer of the Company.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

                  The voting securities of the Company  outstanding on March 19,
1999 consisted of 27,083,419  shares of Common Stock.  The following  table sets
forth  information  concerning  ownership of the Company's  Common Stock,  as at
March 19, 1999, by (i) each  director,  (ii) each executive  officer,  (iii) all
directors  and executive  officers as a group,  and (iv) each person who, to the
knowledge of management, owned beneficially more than 5% of the Common Stock.


               Beneficial Owner(1)           Shares            Percent Of
               -------------------         Beneficially        Outstanding
                                             Owned(2)         Common Stock(2)
                                             --------         ---------------

Elan International Services, Ltd......     14,868,216(3)          39.8%
Inpharzam International S.A...........      2,646,153(4)           9.8%
Thomas M. Fitzgerald..................        166,597(5)           *
Loren G. Peterson.....................        301,000(6)           1.1%
David A. Byron........................        285,500(7)           1.1%
Carl F. Siekmann......................        287,000(8)           1.1%
John M. Bailey........................        100,000(9)           *
Digby W. Barrios......................        45,000(10)           *
George R. Griffiths...................      2,646,153(11)          9.8%
Todd C. Davis.........................     14,893,216(12)         39.9%
All Directors and Executive 
  Officers as a Group.................       18,724,466           49.4%

- --------------------
* Less than 1%.

(1)      The persons named in the table, to the Company's  knowledge,  have sole
         voting  and  investment  power  with  respect  to all  shares  shown as
         beneficially  owned by them,  subject to community  property laws where
         applicable and the information contained in the footnotes hereunder.
(2)      Calculations  assume  that  all  options  and  warrants  held  by  each
         director, director nominee and executive officer and exercisable within
         60 days after March 19, 1999 have been exercised.
(3)      Based solely upon the Company's internal records of issuances of Common
         Stock and convertible securities to Elan International  Services,  Ltd.
         Includes  10,296,788  shares of Common Stock  issuable upon exercise of
         warrants and  conversion of Series C Cumulative  Convertible  Preferred
         Stock  and   Convertible   Promissory   Note.   The   address  of  Elan
         International  Services,  Ltd. is 102 St. James Court,  Flatts,  Smiths
         Parish FLO4, Bermuda
(4)      Based  solely  upon  information  in  the  Schedule  13D  of  Inpharzam
         International  S.A.  dated June 15, 1998 filed with the  Securities and
         Exchange  Commission.  The address of Inpharzam  International S.A. set
         forth  in  such  Schedule  13D  is Via  Industria  1,  6814  Cadempino,
         Switzerland.
(5)      Includes  150,000  shares of common  stock  issuable  upon  exercise of
         options   exercisable   within  60  days  after  March  19,  1999.  Mr.
         Fitzgerald's address is c/o Sheffield Pharmaceuticals,  Inc., 425 South
         Woodsmill Road, St. Louis, Missouri 63017.


                                       29
<PAGE>
(6)      Includes  80,000  shares of Common  Stock  issuable  upon  exercise  of
         options  exercisable within 60 days after March 19, 1999. 4000 of these
         shares are held by Mr.  Peterson  as  custodian  for the benefit of his
         children.  Mr. Peterson disclaims  beneficial ownership of such shares.
         Mr.  Peterson's  address is c/o Sheffield  Pharmaceuticals,  Inc.,  425
         South Woodsmill Road, Suite 270, St. Louis, Missouri 63017.
(7)      Includes  80,000  shares of Common  Stock  issuable  upon  exercise  of
         options  exercisable  within 60 days after March 19, 1999.  Mr. Byron's
         address is c/o Sheffield  Pharmaceuticals,  Inc.,  425 South  Woodsmill
         Road, Suite 270, St. Louis, Missouri 63017.
(8)      Includes  80,000  shares of Common  Stock  issuable  upon  exercise  of
         options exercisable within 60 days after March 19, 1999. Mr. Siekmann's
         address is c/o Sheffield  Pharmaceuticals,  Inc.,  425 South  Woodsmill
         Road, Suite 270, St. Louis, Missouri 63017.
(9)      Includes  100,000  shares of Common  Stock  issuable  upon  exercise of
         options  exercisable  within 60 days after March 19, 1999. Mr. Bailey's
         address is c/o Sheffield  Pharmaceuticals,  Inc.,  425 South  Woodsmill
         Road, St. Louis, Missouri 63017.
(10)     Includes  40,000  shares of Common  Stock  issuable  upon  exercise  of
         options  exercisable  within 60 days after March 19, 1999. Mr. Barrios'
         address is c/o Sheffield  Pharmaceuticals,  Inc.,  425 South  Woodsmill
         Road, St. Louis, Missouri 63017.
(11)     Includes  2,646,153  shares held by  Inpharzam  International  S.A. Mr.
         Griffiths, an officer of Zambon Corporation,  an affiliate of Inpharzam
         International S.A., disclaims any beneficial ownership interest in such
         shares. Mr. Griffths address is c/o Zambon Corporation,  One Meadowland
         Plaza, East Rutherford, New Jersey 07073.
(12)     Includes  25,000 of Common  Stock  issuable  upon  exercise  of options
         exercisable  within  60  days  after  March  19,  1999.  Also  includes
         4,571,428  shares  held  by  Elan  International   Services,  Ltd.  and
         10,011,075  shares of Common Stock  issuable  upon exercise of warrants
         and conversion of Series C Cumulative  Convertible  Preferred Stock and
         Convertible   Promissory   Note.   Mr.  Davis,   an  employee  of  Elan
         Pharmaceutical Research Corporation, an affiliate of Elan International
         Services  Ltd.,  a  Bermuda   corporation,   disclaims  any  beneficial
         ownership  interest  in such  shares.  Mr.  Davis'  address is c/o Elan
         Pharmaceuticals  Research  Corp.,  1300 Gould  Drive,  Gainesville,  GA
         30504.


ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

                  In April 1997, the Company entered into a consulting agreement
with John M.  Bailey,  a director of the Company,  pursuant to which Mr.  Bailey
agreed to  provide  certain  business  and  financial  consulting  advise to the
Company.  Mr. Bailey is paid a monthly retainer of 2,000 British Pounds Sterling
under such agreement,  which monthly retainer is reduced to 1,500 British Pounds
Sterling for any month during which a Board of Directors meeting is held.

                  In  December  1997,  the  Company  entered  into  a  severance
agreement with Douglas R. Eger, a former  Director and executive  officer of the
Company,  pursuant to which Mr. Eger resigned as an employee of the Company. The
severance agreement provided, among other things, for the principal amount of an
$80,000  loan by the  Company to Mr.  Eger (the  "Eger  Loan") to be paid in six
equal  quarterly  installments  commencing  on  September  30,  1998,  with  all
remaining  principal  and  interest  being paid in full on December  31, 1999, a
severance payment of $135,000 payable in six equal installments of $22,500 each,
with  $2,500  of each  such  installment  being  applied  to  repay  Mr.  Eger's
obligations  under  the  Eger  Loan,  and the  grant by Mr.  Eger of a  security
interest  in  30,000  shares  of  the  Company's  common  stock  to  secure  his
obligations under the Eger Loan. During 1998, $15,000 of principal payments were
applied to the Eger Loan. Pursuant to the Eger severence agreement,  the Company
was  required  to forgive  the unpaid  balance of $65,000  during  1998 when the
Company was unable to make timely severance payments to Mr. Eger.

                  In February 1998,  the Company  entered into an agreement (the
"Engagement  Agreement") with an unaffiliated  individual pursuant to which such
individual  was retained by the Company to  facilitate  an alliance with Zambon.
Pursuant to the Engagement Agreement,  the Company agreed to pay such individual
a fee of  between  2.5% and 4.0% of any  equity  investment  or other  financing
received from Zambon. The Company also agreed to issue such individual  warrants
to purchase 150,000 shares of the Company's common stock at 125% of market price
for a financing  of $7.5 million or greater,  with such  warrants to be prorated
proportionally  on financing of a lesser amount.  The Engagement  Agreement also
required  the  Company  pay such  individual  a fee of 5.0% of amounts  actually
received by the Company from Zambon attributable to marketing or other rights to
the Company's MSI system (net of any third party royalty  obligations).  Douglas
R. Eger, a former officer and director of the Company,  advised the Company that
he was  entitled to receive a portion of the fees  payable by the Company to the
individual who is the Company's  counterparty  to the Engagement  Agreement.  In
June 1998, the Company formed a strategic alliance with Zambon for the worldwide
development and  commercialization  of drugs to treat respiratory disease in the
Company's MSI system. In connection with the Zambon  transaction and pursuant to
the Engagement  Agreement,  the Company paid its  counterparty to the Engagement
Agreement $86,000.


                                       30
<PAGE>
                  During  the  period  January 1, 1998  through  April 30,  1998
certain  executive  officers  provided funds for use by the Company in excess of
$60,000 in the aggregate.  These funds were comprised of short-term notes having
a 7% annual  interest  rate,  unpaid  salaries and  unreimbursed  expenses.  The
largest  aggregate  amounts due to certain  executives during this period are as
follows:  Loren G.  Peterson,  $85,923;  David A.  Byron,  $80,343;  and Carl F.
Siekmann,  $75,474.  As of December 31, 1998 all  outstanding  balances of these
short-term notes and the unreimbursed expenses had been paid in full.

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, 1998 and 1997
                  Consolidated  Statements of  Operations  for
                  the years ended December 31, 1998,  1997 and
                  1996 and for the  period  October  17,  1986
                  (inception) to
                      December, 31 1998
                  Consolidated   Statements  of  Stockholders'
                     Equity (net capital  deficiency)  for the
                     period from October 17, 1986  (inception)
                     to December 31, 1998
                  Consolidated  Statements  of Cash  Flows for
                      the years ended December 31, 1998,  1997
                      and 1996 and for the period from October
                      17, 1986  (inception)  to  December  31,
                      1998
                  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:


NO.                                                                    REFERENCE

3.1                Certificate  of  Incorporation  of the Company,  as
                   amended                                                  (10)

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, rights, preferences,  limitations and
                   restrictions  applicable to the Company's  Series A
                   Cumulative  Convertible  Redeemable Preferred Stock       (7)

4.3                Certificate  of  Designations  defining the powers,
                   designations, rights, preferences,  limitations and
                   restrictions  applicable to the Company's  Series B
                   Cumulative  Convertible  Redeemable Preferred Stock      (11)

4.4                Certificate  of  Designations  defining the powers,
                   designations, rights, preferences,  limitations and
                   restrictions  applicable to the Company's  Series C
                   Cumulative  Convertible  Redeemable Preferred Stock
                   (10)


                                  31
<PAGE>
10.6               Employment  Agreement  dated  as of  June  6,  1996
                   between the Company and Thomas M. Fitzgerald              (3)

10.6.5             Employment  Agreement dated as of November 16, 1998
                   between the Company and Scott Hoffmann                    (1)

10.6.6             Employment  Agreement dated as of November 17, 1997
                   between the Company and Judy Roeske-Bullock              (14)

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

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 Pharmacal, L.L.C., David A. Byron, Loren G.
                   Peterson and Carl Siekmann dated April 25, 1997           (6)

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

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

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

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

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

10.17              Assignment  and  License   Agreement  dated  as  of
                   December 3, 1997 between  1266417  Ontario  Limited
                   and Ion  Pharmaceuticals,  Inc.  (portions  of this
                   exhibit were 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).                                        (9)

10.18              Sub-License  Agreement dated as of December 3, 1997
                   between    1266417    Ontario   Limited   and   Ion
                   Pharmaceuticals,  Inc.  (portions  of this  exhibit
                   were  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).                                        (9)

10.19              Form  of  Sublicense  and   Development   Agreement
                   between   Sheffield   Pharmaceuticals,   Inc.   and
                   Inpharzam  International,  S.A.  (portions  of this
                   exhibit were omitted and were filed separately with
                   the Securities and 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).                                       (12)

                                  32
<PAGE>
10.20              Securities Purchase Agreement, dated as of June 30,
                   1998,  by and  between  Sheffield  pharmaceuticals,
                   Inc. and Elan International  Services,  Ltd., which
                   includes the  Certificate of Designations of Series
                   C  Convertible  Preferred  Stock as  Exhibit B. The
                   Company agreed to furnish the disclosure  schedules
                   as well as  Exhibits A and C,  which  were  omitted
                   from this filing,  to the  Commission  upon request
                   (portions  of this  exhibit  were  omitted and were
                   filed  separately  with the Securities and 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).                       (13)

10.21              Systemic Pulmonary Delivery, Ltd. Joint Development
                   and Operating  Agreement  dated as of June 30, 1998
                   among Systemic Pulmonary Delivery,  Ltd., Sheffield
                   Pharmaceuticals,   Inc.   and  Elan   International
                   Services,   Ltd.  (portions  of  this  exhibit were
                   omitted   and  were  filed   separately   with  the
                   Securities and 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).                                       (13)

10.22              License and  Development  Agreement  dated June 30,
                   1998 between  Sheffield  Pharmaceuticals,  Inc. and
                   Systemic   Pulmonary   Delivery,   Ltd.   and  Elan
                   Corporation  plc.  (portions  of this  exhibit were
                   omitted   and  were  filed   separately   with  the
                   Securities and 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).                                       (13)

10.23              License and  Development  Agreement  dated June 30,
                   1998 between Systemic Pulmonary Delivery,  Ltd. and
                   Sheffield    Pharmaceuticals,    Inc.    and   Elan
                   Corporation,  plc.  (portions  of this exhibit were
                   omitted   and  were  filed   separately   with  the
                   Securities and Exchange  Commission pursuant to the
                   Company's  application  requesting  Rule  24b-2  as
                   promulgated  under the  Securities  Exchange Act of
                   1934, as amended).                                       (13)

10.24              License and  Development  Agreement  dated June 30,
                   1998  between  Elan  Corporation,  plc and Systemic
                   Pulmonary    Delivery,     Ltd.    and    Sheffield
                   Pharmaceuticals,  Inc.  (portions  of this  exhibit
                   were  omitted  and were filed  separately  with the
                   Securities and 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).                                       (13)

21                 Subsidiaries of Registrant                                (1)

23.1               Consent of Ernst & Young LLP                              (1)

27                 Financial Data Schedule                                   (1)

- -----------------------
(1)               Filed herewith.

                                  33
<PAGE>
(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.
(10)     Incorporated  by reference to the  Company's  Quarterly  Report on Form
         10-Q for the quarter ended June 30, 1998 filed with the  Securities and
         Exchange Commission.
(11)     Incorporated by reference to Exhibit 3 of the Company's  Current Report
         on Form 8-K,  dated  April 17,  1998,  filed  with the  Securities  and
         Exchange Commission.
(12)     Incorporated by reference to Exhibit 2 of the Company's  Current Report
         on Form  8-K,  dated  June 22,  1998,  filed  with the  Securities  and
         Exchange Commission.
(13)     Incorporated  by reference to exhibits to the Company's  Current Report
         on Form  8-K,  dated  July 16,  1998,  filed  with the  Securities  and
         Exchange Commission.
(14)     Incorporated  by reference to the Company's  Annual Report on Form 10-K
         for the year ended  December  31,  1997 filed with the  Securities  and
         Exchange Commission.

(b)      Reports on Form 8-K

                  None


                                       34
<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: March 23, 1999              /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.



      Signature                   Title                        Date

   /S/ Thomas M. Fitzgerald   Chairman and Director            March 23, 1999
- ---------------------------
Thomas M. Fitzgerald

   /S/ Loren G. Peterson      Director, President and Chief    March 23, 1999
- ------------------------      Executive Officer
Loren G. Peterson

   /S/ John M. Bailey         Director                         March 23, 1999
- ---------------------
John M. Bailey

   /S/ Digby W. Barrios       Director                         March 23, 1999
- -----------------------
Digby W. Barrios

   /S/ Todd C. Davis          Director                         March 23, 1999
- --------------------
Todd C. Davis

   /S/ George R. Griffiths    Director                         March 23, 1999
- --------------------------
George R. Griffiths

   /S/ Scott A. Hoffmann      Vice President, Chief            March 23, 1999
- ------------------------      Financial Officer,         
Scott A. Hoffmann             Treasurer and Secretary    
                              (Chief Financial and       
                               Chief Accounting Officer) 
                             



                                       35
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)


                        CONSOLIDATED FINANCIAL STATEMENTS

                                Table of Contents


                                                                            PAGE


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

Consolidated Balance Sheets as of December 31, 1998 and 1997.................F-3

Consolidated  Statements of  Operations for the 
three years in the period ended December 31, 1998 
and for the period from October 17, 1986 
(inception) to December 31, 1998 ............................................F-4

Consolidated Statements of Stockholders' Equity 
(Net Capital Deficiency) for the period from October 17, 1986 
(inception) to December 31, 1998 ............................................F-5

Consolidated  Statements  of Cash Flows for 
the three years in the period ended December 31, 1998 
and for the period from October 17, 1986 (inception) 
to December 31, 1998.........................................................F-6

Notes to Consolidated Financial Statements ..................................F-7




                                       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. and subsidiaries (a development  stage  enterprise) as of
December  31,  1998  and  1997,  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, 1998 and for the period
October  17,  1986  (inception)  through  December  31,  1998.  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 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 provide a reasonable basis for our opinion.

In our opinion,  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, 1998 and 1997, and the
consolidated  results of their  operations  and their cash flows for each of the
three years in the period  ended  December  31, 1998 and the period from October
17, 1986  (inception)  through  December 31, 1998, 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 will
require 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.


/s/ Ernst & Young LLP
St. Louis, Missouri
March 11, 1999

                                       F-2
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                           CONSOLIDATED BALANCE SHEETS
<TABLE>
<CAPTION>
                    Assets                                                                                December 31,
                                                                                                       1998          1997
                                                                                                       ----          ----
<S>                                                                                               <C>            <C>         
Current assets:
                  Cash and cash equivalents ....................................................  $  2,456,290   $    393,608
                  Marketable equity security ...................................................       127,774           --
                  Loan receivable - former officer .............................................          --           80,000
                  Prepaid expenses and other current assets ....................................        39,035         47,378
                                                                                                  ------------   ------------
                                    Total current assets .......................................     2,623,099        520,986
                                                                                                  ------------   ------------


Property and equipment:
                  Laboratory equipment .........................................................       317,032        185,852
                  Office equipment .............................................................       175,062        142,562
                  Leasehold improvements .......................................................         1,323           --
                                                                                                  ------------   ------------
                                Total at cost ..................................................       493,417        328,414
                  Less accumulated depreciation and amortization ...............................      (253,995)      (185,201)
                                                                                                  ------------   ------------
                                    Property and equipment, net ................................       239,422        143,213
                                                                                                  ------------   ------------

Other assets ...................................................................................          --           25,738
                                                                                                  ------------   ------------

                  Total assets .................................................................  $  2,862,521   $    689,937
                                                                                                  ============   ============

LIABILITIES AND STOCKHOLDERS' EQUITY (NET CAPITAL DEFICIENCY)

Current liabilities:
                  Accounts payable and accrued liabilities .....................................  $    615,138   $    887,782
                  Sponsored research payable ...................................................       449,805        470,768
                  Note payable - related party .................................................       101,323           --
                                                                                                  ------------   ------------
                                    Total current liabilities ..................................     1,166,266      1,358,550

Convertible promissory note ....................................................................     1,000,000           --
6% convertible subordinated debenture ..........................................................          --        1,551,000
Other long-term liabilities ....................................................................        41,050         28,875
Series A cumulative  convertible  redeemable  preferred  stock,  $.01 par value,
       authorized 40,000 shares; 0 and 25,000 shares issued and outstanding
       December 31, 1998 and 1997, respectively ................................................          --        2,468,263
Commitments and contingencies ..................................................................          --             --
                                                                                                  ------------   ------------
                Total liabilities ..............................................................     2,207,316      5,406,688

Stockholders' equity (net capital deficiency):
                  Preferred stock, $.01 par value, authorized 3,000,0000 shares:
                         Series C cumulative convertible preferred stock, authorized 23,000
                                shares; 11,914 and 0 shares issued and outstanding at
                                December 31, 1998 and 1997, respectively .......................           119           --
                  Common stock, $.01 par value, authorized 50,000,000 shares;
                        issued and outstanding, 27,058,419 and 12,649,539 shares at
                        December 31, 1998 and 1997, respectively ...............................       270,584        126,495
                  Notes receivable in connection with sale of stock ............................       (10,000)       (72,600)
                  Additional paid-in capital ...................................................    55,773,491     31,386,644
                  Other comprehensive income (loss) ............................................      (222,226)          --
                  Deficit accumulated during development stage .................................   (55,156,763)   (36,157,290)
                                                                                                  ------------   ------------
                            Total stockholders' equity (net capital deficiency) ................       655,205     (4,716,751)
                                                                                                  ------------   ------------


Total liabilities and stockholders' equity (net capital deficiency) ............................  $  2,862,521   $    689,937
                                                                                                  ============   ============
</TABLE>
                See notes to consolidated financial statements.

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

                     Consolidated Statements of Operations
    For the Years Ended December 31, 1998, 1997 and 1996 and for the Period
             from October 17, 1986 (inception) to December 31, 1998
<TABLE>
<CAPTION>
                                                                                                                        October 17,
                                                                                                                           1986 
                                                                                                                        (inception)
                                                                                  Years Ended December 31,                  to 
                                                                                  ------------------------             December 31,
                                                                         1998             1997             1996            1998
                                                                         ----             ----             ----            ----
<S>                                                                 <C>              <C>              <C>              <C>         
Revenues:
   Sublicense revenue ..........................................    $    350,000     $    500,000     $    510,000     $  1,360,000
   Interest income .............................................          60,273           56,914          163,664          514,100
                                                                    ------------     ------------     ------------     ------------

        Total revenues .........................................         410,273          556,914          673,664        1,874,100

Expenses:
   Acquisition of research and development in-process
   technology
                                                                      13,325,000        1,650,000             --         14,975,000
   Research and development ....................................       2,351,301        3,729,193        3,841,818       21,603,690
   General and administrative ..................................       3,043,070        4,627,567        3,831,204       19,565,329
   Interest ....................................................         251,363           39,292            9,531          411,118
                                                                    ------------     ------------     ------------     ------------

        Total expenses .........................................      18,970,734       10,046,052        7,682,553       56,555,137
                                                                    ------------     ------------     ------------     ------------

Loss before extraordinary item .................................     (18,560,461)      (9,489,138)      (7,008,889)     (54,681,037)
Extraordinary item .............................................            --               --               --             42,787
                                                                    ------------     ------------     ------------     ------------

Net loss .......................................................    $(18,560,461)    $ (9,489,138)    $ (7,008,889)    $(54,638,250)
                                                                    ============     ============     ============     ============

Accretion of mandatorily redeemable preferred stock ............         (23,900)         (79,500)            --           (103,400)
                                                                    ------------     ------------     ------------     ------------

Net loss - attributable to common shares .......................    $(18,584,361)    $ (9,568,638)    $ (7,008,889)    $(54,741,650)
                                                                    ============     ============     ============     ============

Weighted average common shares outstanding-basic ...............      21,931,040       11,976,090       10,806,799        6,336,589

Net loss per share of common stock - basic:
    Loss before extraordinary item .............................    $      (0.85)    $      (0.80)    $      (0.65)    $      (8.63)
    Extraordinary item .........................................            --               --               --                .01
                                                                    ------------     ------------     ------------     ------------
    Net loss per share .........................................    $      (0.85)    $      (0.80)    $      (0.65)    $      (8.62)
                                                                    ============     ============     ============     ============

</TABLE>
                See notes to consolidated financial statements.

                                       F-4


<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, 1998
<TABLE>
<CAPTION>
                                                                     Notes
                                                                   receivable                             Deficit         Total
                                                                       in                     Other     accumulated    stockholders'
                                                                   connection   Additional comprehensive  during        equity (net
                                           Preferred   Common       with sale    paid-in     income      development      capital
                                             Stock      Stock       of Stock     Capital     (loss)        Stage        Deficiency)
                                             -----      -----       --------     -------     ------        -----        -----------


<S>                                           <C>    <C>            <C>        <C>          <C>          <C>            <C>     
Balance at October 17, 1986 ................  $--    $      --      $   --     $     --     $    --      $      --      $     --
Common stock issued ........................   --     11,315,985        --       9,981,141       --             --       21,297,126
Reincorporation in Delaware at
     $.01 par value ........................   --    (11,220,369)       --      11,220,369       --             --             --
Common stock options issued ................   --           --          --          75,000       --             --           75,000
Net loss ...................................   --           --          --            --         --      (19,579,763)   (19,579,763)
                                              ----  ------------   ---------   -----------  ---------   ------------   ------------

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)
Comprehensive income (loss):
       Unrealized loss on
         marketable securities .............   --           --          --            --      (39,232)          --          (39,232)
       Net loss ............................   --           --          --            --         --       (7,008,889)    (7,008,889)
                                                                                                                       ------------
Comprehensive income (loss) ................   --           --          --            --         --             --       (7,048,121)
                                              ----  ------------   ---------   -----------  ---------   ------------   ------------

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
Accretion of issuance costs for
     Series A preferred stock ..............   --           --          --            --         --          (79,500)       (79,500)
Comprehensive income (loss):
     Unrealized gain on
       marketable securities ...............   --           --          --            --       39,232           --           39,232
     Net loss ..............................   --           --          --            --         --       (9,489,138)    (9,489,138)
                                                                                                                       ------------
Comprehensive income (loss) ................   --           --          --            --         --             --       (9,449,906)
                                              ----  ------------   ---------   -----------  ---------   ------------   ------------

Balance at December 31, 1997 ...............   --        126,495     (72,600)   31,386,644       --      (36,157,290)    (4,716,751)
Common stock issued ........................   --        144,089      62,600    12,472,966       --             --       12,679,655
Series C preferred stock issued ............   115          --          --      11,499,885       --             --       11,500,000
Series C preferred stock dividends .........     4          --          --         413,996       --         (415,112)        (1,112)
Accretion of issuance costs for
      Series A preferred stock .............   --           --          --            --         --          (23,900)       (23,900)
Comprehensive income (loss):
     Unrealized loss on
       marketable securities ...............   --           --          --            --     (222,226)          --         (222,226)
     Net loss ..............................   --           --          --            --         --      (18,560,461)   (18,560,461)
                                                                                                                       ------------
Comprehensive income (loss) ................   --           --          --            --         --             --      (18,786,687)
                                              ----  ------------   ---------   -----------  ---------   ------------   ------------

Balance at December 31, 1998 ...............  $119  $    270,584   $ (10,000)  $55,773,491  $(222,226)  $(55,156,763)  $    655,205
                                              ====  ============   =========   ===========  =========   ============   ============
</TABLE>
                See notes to consolidated financial statements.

                                       F-5
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                     Consolidated Statements Of Cash Flows

  For the Years Ended December 31, 1998, 1997 and 1996 and for the Period from
               October 17, 1986 (Inception) to December 31, 1998

<TABLE>
<CAPTION>
                                                                                                                    October 17, 1986
                                                                                                                     (inception) to
                                                                                   Years Ended December 31,          December 31,
                                                                             1998          1997          1996           1998
                                                                             ----          ----          ----           ----
<S>                                                                      <C>            <C>           <C>           <C>          
Cash outflows from development stage activities and
   extraordinary gain:  Loss before extraordinary item ................  $(18,560,461)  $(9,489,138)  $(7,008,889)  $(54,681,037)
         Extraordinary gain on extinguishment of debt .................          --            --            --           42,787
                                                                         ------------   -----------   -----------   ------------
         Net loss .....................................................   (18,560,461)   (9,489,138)   (7,008,889)   (54,638,250)
                                                                         ------------   -----------   -----------   ------------
Adjustments to reconcile net loss to net cash used by development stage
   activities:
     Issuance of common stock, stock options/warrants for services ....       359,913       381,056       640,762      2,281,973
     Non-cash interest income .........................................          (670)         --            --             (670)
     Non-cash interest expense ........................................        64,844        28,875          --          143,717
     Non-cash acquisition of research and development in process
technology
                                                                                 --       1,650,000          --        1,650,000
     Issuance of common stock for license .............................          --            --            --            5,216
     Securities acquired under sublicense agreement ...................      (350,000)         --        (500,000)      (850,000)
     Issuance of common stock for intellectual property rights ........          --            --            --          866,250
     Depreciation and amortization ....................................        68,794        84,584        71,652        393,219
     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 & other current assets ...         8,343        (3,403)      109,810        (98,076)
     Decrease in other assets .........................................        25,738        14,278        44,354         59,041
     Increase (decrease) in accounts payable, accrued liabilities .....      (279,264)      440,817       245,680         31,448
     Increase (decrease) in sponsored research payable ................       (20,963)     (109,389)      352,755      1,026,875
                                                                         ------------   -----------   -----------   ------------
Net cash used by development stage activities .........................   (18,683,726)   (6,677,405)   (6,043,876)   (48,882,176)
                                                                         ------------   -----------   -----------   ------------

Cash flows from investing activities:
     Proceeds on sale of marketable securities ........................          --         175,085          --          175,085
     Acquisition of laboratory and office equipment, and leasehold
         improvements .................................................      (131,772)      (53,543)      (51,136)      (449,124)
     Decrease (increase) in segregated cash ...........................          --          75,000       (75,000)          --
     Increase in notes receivable in connection with sale of stock ....          --            --        (240,000)      (240,000)
     Decrease (increase) in loan receivable - former officer ..........        80,000       (80,000)         --             --
     Payments of notes receivable .....................................        52,200        37,400       130,000        219,600
     Purchase of Camelot Pharmacal, L.L.C., net cash acquired .........          --         (46,687)         --          (46,687)
                                                                         ------------   -----------   -----------   ------------
Net cash provided (used) by investing activities ......................           428       107,255      (236,136)      (341,126)
                                                                         ------------   -----------   -----------   ------------

Cash flows from financing activities:
     Principal payments under capital lease ...........................        (4,020)      (50,925)      (21,528)       (76,473)
     Proceeds from notes payable - related party ......................       150,000          --            --          150,000
     Repayments of notes payable - related party ......................       (50,000)         --            --          (50,000)
     Proceeds from issuance of convertible notes ......................     1,000,000          --            --        1,000,000
     Conversion of convertible, subordinated notes ....................          --            --            --          749,976
     Proceeds from issuance of convertible debenture ..................          --       1,750,000          --        2,300,000
     Proceeds from issuance of common stock ...........................     8,150,000          --            --       21,418,035
     Proceeds from issuance of preferred stock ........................    12,750,000     3,284,812          --       16,034,812
     Redemption of preferred stock ....................................    (1,250,000)         --            --       (1,250,000)
     Proceeds from exercise of warrants/stock options .................          --            --       6,420,834     11,402,158
                                                                         ------------   -----------   -----------   ------------
Net cash provided by financing activities .............................    20,745,980     4,983,887     6,399,306     51,678,508
                                                                         ------------   -----------   -----------   ------------

Net increase (decrease) in cash and cash equivalents ..................     2,062,682    (1,586,263)      119,294      2,455,206
Cash and cash equivalents at beginning of period ......................       393,608     1,979,871     1,860,577          1,084
                                                                         ------------   -----------   -----------   ------------
Cash and cash equivalents at end of period ............................  $  2,456,290   $   393,608   $ 1,979,871   $  2,456,290
                                                                         ============   ===========   ===========   ============

Noncash investing and financing activities:
     Common stock, stock options and warrants issued for services .....  $    359,913   $   381,056   $   640,762   $  2,281,973
     Common stock redeemed in payment of notes receivable .............        10,400          --            --           10,400
     Acquisition of research and development in-process
technology
                                                                                 --       1,650,000          --        1,655,216
     Common stock issued for intellectual property rights .............          --            --            --          866,250
     Common stock issued to retire debt ...............................          --            --            --          600,000
     Common stock issued to redeem convertible securities .............     4,019,263     1,334,105          --        5,353,368
     Securities acquired under sublicense agreement ...................       350,000          --         500,000        850,000
     Equipment acquired under capital lease ...........................        49,231          --          72,453        121,684
     Notes payable converted to common stock ..........................          --            --            --          749,976
     Stock dividends ..................................................       596,195       182,352          --          778,547

Supplemental disclosure of cash flow information:  Interest paid ......  $    186,519   $    10,417   $     9,531   $    267,401
</TABLE>
                 See notes to consolidated financial statements.

                                       F-6
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
              For the Years Ended December 31, 1998, 1997 and 1996


1.            DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION

                        Sheffield Medical  Technologies  Inc.  ("Sheffield") was
incorporated under Canadian law in October 1986. In May 1992, the Company became
domesticated  as a Wyoming  Corporation  pursuant to a  "continuance"  procedure
under Wyoming law. In January  1995,  the  Company's  shareholders  approved the
proposal to reincorporate Sheffield in Delaware,  which was effected on June 13,
1995. 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.  In June 1997,  the  Company's
shareholders  approved the proposal to change  Sheffield's  name from  Sheffield
Medical  Technologies  Inc.  to  Sheffield  Pharmaceuticals,  Inc. As part of an
agreement  with Elan  Corporation,  plc,  ("Elan")  on June 30,  1998,  Systemic
Pulmonary Delivery,  Ltd. ("SPD") was formed as a wholly owned subsidiary of the
Company.  At that  time,  SPD  acquired  the  Company's  rights to the  systemic
applications of the Metered  Solution Inhaler ("MSI") and acquired Elan's rights
to  certain  pulmonary  delivery  technologies.   Unless  the  context  requires
otherwise,  Sheffield,  Ion, CP and SPD are referred herein to as "the Company."
All significant intercompany transactions are eliminated in consolidation.

                        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  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,  sustained  significant net operating
losses,  and  requires  additional  capital  that 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 1999 is dependent upon  obtaining  additional
funding.  However,  the  accompanying  financial  statements  do not include any
adjustments that might result from the outcome of this uncertainty.

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 that 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 other comprehensive income within stockholders' equity.

                        PROPERTY  AND  EQUIPMENT - Property  and  equipment  are
stated at cost.  Depreciation  is computed using the  straight-line  method over
three or five year periods for leasehold improvements and office equipment,  and
five years for laboratory equipment.  Assets under capital leases, consisting of
office  equipment,  are  amortized  over the  lesser of the  useful  life or the
applicable lease terms.

                        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.

                        FAIR  VALUE  OF  FINANCIAL  INSTRUMENTS  - The  carrying
amounts  of cash and cash  equivalents,  accounts  payable,  sponsored  research
payable and notes payable approximates fair value.

                        BASIC  NET LOSS PER  SHARE OF  COMMON  STOCK - Basic net
loss  per  share  is  calculated  in  accordance  with  Statement  of  Financial
Accounting  Standards  ("SFAS") No. 128, EARNINGS PER SHARE.  Basic net loss per
share is based upon the weighted  average common stock  outstanding  during each
year.   Potentially  dilutive  securities  such  as  stock  options,   warrants,
convertible  debt and  preferred  stock,  have not been  included  in any  years
presented  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.

                                       F-7
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


                        STOCK-BASED  COMPENSATION - SFAS No. 123, ACCOUNTING FOR
STOCK-BASED  COMPENSATION,  defines a fair value method of accounting  for stock
options and similar  equity  instruments.  As permitted by SFAS 123, the Company
continues to account for such  transactions  under  Accounting  Principal  Board
Opinion No. 25,  ACCOUNTING  FOR STOCK ISSUED TO EMPLOYEES  ("APB 25"),  and has
disclosed in a note to the financial  statements pro forma net loss and earnings
per share as if the Company had applied the fair value method of accounting  for
its stock-based awards.  Under APB 25, no expense is generally 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
1998, the Company adopted SFAS No. 130, REPORTING  COMPREHENSIVE  INCOME,  which
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. In accordance with SFAS No. 130, the Company has changed the
format  of its  consolidated  statements  of  stockholders'  equity  to  present
comprehensive   income.   Other  comprehensive  income  or  loss  shown  in  the
consolidated  statements of stockholders'  equity at December 31, 1998, 1997 and
1996 is solely comprised of unrealized gains or losses on marketable securities.
The   unrealized   gain  on   marketable   securities   during   1997   includes
reclassification  adjustments for $324,915 of losses realized in income from the
sale of the securities.

                        In  1998,   the  Company  also  adopted  SFAS  No.  131,
DISCLOSURES  ABOUT  SEGMENTS OF AN  ENTERPRISE  AND RELATED  INFORMATION,  which
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
has no reportable segments as defined by SFAS No. 131.

3.            ACQUISITION

                        On April 25, 1997, the Company completed its acquisition
of  Camelot  Pharmacal,  L.L.C.,  ("Camelot")  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 (see Note 5). 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

                        The  Company   leases  its  office   space  and  certain
equipment  under  noncancelable  operating  and  capital  leases  that expire at
various dates through 2003.  During 1998, the Company  entered into an equipment
lease that qualifies as a capital lease. At December 31, 1998, assets held under
capital leases  consisting of office equipment were $41,026,  net of accumulated
amortization  of  $8,205.  Future  minimum  lease  payments  under  capital  and
operating leases at December 31, 1998 are as follows:

                                                 Capital         Operating
                                                 Leases            Leases
                                                 ------            ------

   1999.......................................   $9,375          $129,452
   2000.......................................    9,375           121,351
   2001.......................................    9,375           115,997
   2002.......................................    9,375            78,364
   2003.......................................    1,563                --
                                                 ------           -------
   Total minimum lease payments...............   39,063          $445,164
                                                                 ========
   Less amount representing interest..........   (9,854)
                                                -------
   Present   value   of  net
     minimum lease payments...................   29,209
   Less current maturities of capital 
     lease obligations......................     (5,507)
                                                =======
   Capital lease obligations...............     $23,702
                                                =======



                                       F-8
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


                        Rent expense  relating to operating leases for the years
ended  December  31,  1998,  1997,  1996 and the period  from  October  17, 1986
(inception)  to December 31, 1998 was  $143,126,  $190,584,  and  $147,104,  and
$666,235, respectively.

5.            STOCKHOLDERS' EQUITY

                        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
          Issued during year ended December 31, 1998          14,408,880
                                                              ----------

          Balance outstanding at December 31, 1998            27,058,419
                                                              ==========


                        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  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.
A.M. Jenke, a former director and officer of the Company.  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. Jenke 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 and contain  antidilutive
provisions  whereby the Common Stock to be purchased  under the warrants and the
related  exercise  price are adjusted to reflect the completion of certain stock
transactions (see Note 6).

                                       F-9
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                        On January 23, 1995, SMT Investment  Partnership ("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. In
addition,  the SMT Warrants contain certain antidilutive  provisions whereby the
Common Stock to be purchased  under the warrants and the related  exercise price
are adjusted to reflect the completion of certain transactions (see Note 6). 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  and contain
certain  antidilutive  provisions whereby the Common Stock to be purchased under
the  warrants  and the  related  exercise  price are  adjusted  to  reflect  the
completion of certain stock transactions (see Note 6).

                        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 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.  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.  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,  were converted into 44,769
shares  of  Common  Stock.  In 1998,  the  remaining  balance  of the  Company's
outstanding  Series A Preferred  Stock,  plus related  dividends  payable,  were
converted to Common  Stock,  resulting  in the  issuance of 4,075,797  shares of
Common Stock.

                        On April  25,  1997,  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  ("Debentures")  due  September  22, 2000.  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 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  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  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 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. During 1998, the Debentures were converted to
Common Stock resulting in the issuance of 2,925,941 shares of common stock.

                        On April 15,  1998,  the Company  issued 1,250 shares of
its Series B  Cumulative  Convertible  Redeemable  Preferred  Stock in a private
placement for an aggregate purchase price of $1,250,000. In addition, the Holder
of Series B Preferred  Stock was issued  warrants to acquire  300,000  shares of
Common  Stock at any time up until and  including  April 15, 2001 for a price of
$1.00 per  share.  Each share of Series B  Preferred  Stock  earns a  cumulative
dividend  payable at a rate per share equal to 6% per annum.  On July 31,  1998,
the Company  redeemed all of the Series B Preferred Stock and accrued  dividends
for cash.
                                      F-10
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


                        During 1998, the Company  entered into an agreement with
Zambon Group, SpA ("Zambon") of Milan,  Italy, for a sublicense to the Company's
proprietary  MSI drug  delivery  system  (see  Note 8).  Pursuant  to an  option
agreement  dated April 15, 1998,  the Company  issued  800,000  shares of Common
Stock for  $650,000 in cash.  On June 15,  1998,  the Company  entered  into the
definitive  agreement,  resulting  in the  issuance of an  additional  1,846,153
shares of Common Stock for $1,500,000.

                        On June 30, 1998, the Company issued 4,571,428 shares of
Common  Stock and 11,500  shares of Series C  Cumulative  Convertible  Preferred
Stock,  convertible  into  shares  of  Common  Stock  of the  Company  or of its
wholly-owned  subsidiary,  SPD,  for  $17.5  million  pursuant  to a  definitive
agreement  with Elan.  The Series C Preferred  Stock earns  cumulative  dividend
payable  in shares of Series C  Preferred  Stock at a rate of 7.0% on the stated
value of each  outstanding  share of Series C  Preferred  Stock on the  dividend
date. Elan also received a warrant to purchase 990,000 shares of Common Stock of
the Company  exercisable  from December 31, 1998 through  January 30, 2005 at an
exercise  price of $2.00  per  share.  Under  the  terms of the  agreement,  the
Company,  through SPD, acquired certain pulmonary delivery  technologies for the
sum of $12.5 million in cash (see Note 8). All of the  outstanding  common stock
of SPD is pledged to Elan during the term of the  agreement.  The net book value
of SPD is $1.6 million as of December 31, 1998.  During 1998, the Company issued
stock  dividends  totaling  414  shares  of  Series C  Preferred  Stock and cash
dividends for fractional shares of $1,112.


6.            STOCK OPTIONS AND WARRANTS

                        The 1993  Stock  Option  Plan (the  "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 Option
Plan  increasing  the number of shares of Common  Stock  available  for issuance
thereunder  from  3,000,000  shares to  4,000,000  shares  received  shareholder
approval on July 15, 1998.  The Option Plan  permits the grant to employees  and
officers of the Company of both incentive stock options and non-statutory  stock
options.  The  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 Option Plan
must be at 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 to ten
years  from the date of grant and vest  either  over time or upon the  Company's
Common Stock  attaining a set market price for a certain number of trading days.
As of December 31, 1998,  options  available for grant under the Option Plan are
1,559,000.

                        The 1993 Restricted Stock Plan (the  "Restricted  Plan")
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
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 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 December 31, 1998, no shares
have been granted under the Restricted Plan.

                        The 1996  Directors  Stock  Option Plan (the  "Directors
Plan") was adopted by the Board of Directors and approved by the shareholders on
June 20, 1996. Under the Directors Plan, the maximum  aggregate number of shares
which may be optioned and sold is 500,000 shares of Common Stock.  The Directors
Plan  initially  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 Directors 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 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,  1998,  there are 305,000
options available for grant under the Directors Plan.


                                      F-11
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


                        Transactions  involving  stock  options and warrants are
summarized as follows:
<TABLE>
<CAPTION>
                                                  1998                       1997                              1996
                                       -------------------------     ------------------------     ----------------------------
                                                       Weighted                      Weighted                        Weighted
                                                       Average                       Average                         Average
                                       Common Stock    Exercise      Common Stock    Exercise     Common Stock       Exercise 
                                         Options        Price         Options         Price        Options            Price
                                       ------------    -------       ------------    --------     -------            ---------
<S>                                     <C>              <C>         <C>              <C>         <C>                 <C> 
Outstanding, January 1, .............   4,781,290        3.65        3,033,755        4.49        4,164,834           4.02
    Granted .........................   3,162,910        1.81        3,683,039        3.92        1,014,922           5.52
    Expired .........................     283,504        4.48          327,500        3.18           70,000           3.77
    Exercised .......................        --          --               --          --          1,942,501           3.76
    Canceled ........................     180,500        5.64        1,608,004        4.11          133,500           4.53
    Revalued(1) .....................     430,640        --               --          --               --             --
                                        ---------        ----        ---------        ----        ---------           ----
Outstanding December 31, ............   7,910,836        2.55        4,781,290        3.65        3,033,755           4.49
                                        =========        ====        =========        ====        =========           ====
Exercisable at end of year ..........   5,028,336        2.71        2,900,290        3.88        2,094,833           4.75
                                        =========        ====        =========        ====        =========           ====

</TABLE>

                        (1) Certain  warrants  issued by the Company during 1995
contain antidilutive provisions. These warrants total 615,325, and have exercise
prices  ranging  from $4.00 to $5.00 per  share.  Pursuant  to the  antidilutive
provisions of the warrants, the common shares to be purchased under the warrants
were increased to 1,045,965 and the related  exercise  prices were adjusted to a
range of $2.44 to $2.81 per share.


During the period January 1, 1996 through December 31, 1998, the exercise prices
and weighted  average fair value of options and warrants  granted by the Company
were as follows:

                                                               Weighted Average 
     Year        Number Of Options/warrants   Exercise Price     Fair Value
     ----        --------------------------   --------------   ----------------
     1996                1,014,922             $3.38 - 8.25         $2.30
     1997                3,683,039             $1.50 - 6.00         $4.05
     1998                3,162,910             $1.00 - 3.69         $0.99


                         At December 31, 1998,  outstanding warrants to purchase
the Company's Common Stock are summarized as follows:

                                                                    Weighted 
                                            Weighted Average        Average 
     Range of        Outstanding Warrants  Remaining Contractual    Exercise 
  Exercise Prices    At December 31, 1998    Life (Years)            Price
  ---------------    --------------------  ---------------------  ------------
   $0.73 - $2.00          1,929,910               4.62              $1.63
   $2.25 - $3.00          1,340,965               1.37              $2.61
   $3.25 - $6.50            511,539               2.91              $3.73
                          --------
                          3,782,414               3.24              $2.26
                          =========


                        At December  31, 1998,  outstanding  options to purchase
the Company's Common Stock are summarized as follows:

                                                                    Weighted 
                                            Weighted Average        Average 
     Range of        Outstanding Options   Remaining Contractual    Exercise 
  Exercise Prices    At December 31, 1998    Life (Years)            Price
  ---------------    --------------------  ---------------------  ------------
   $1.24 - $2.75          2,881,000               6.56                $2.35
   $3.00 - $4.00            879,922               3.85                $3.62
   $4.06 - $6.25            367,500               2.80                $4.57
                          ---------
                          4,128,422               5.65                $2.82
                          =========


                                      F-12
<PAGE>

                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


                        SFAS No. 123  requires pro forma  information  regarding
net income and earnings per share as if the Company has  accounted for its stock
options granted  subsequent to December 31, 1994, under the fair value method of
SFAS No. 123. The fair value of these stock  options is estimated at the date of
grant using a  Black-Scholes  option  pricing model with the following  weighted
average  assumptions for 1998, 1997, and 1996:  risk-free  interest rate ranging
from 4.39% to 6.23%;  expected volatility ranging from 0.526 and 0.694; expected
option life of one to ten 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:

                                           1998           1997          1996
                                           ----           ----          ----
Pro forma net loss ...............   $   18,983,921   $   9,500,810   $8,500,149
Pro forma basic net loss
   per share of common stock......   $         0.87   $        0.79   $     0.79


7.             CONVERTIBLE PROMISSORY NOTE

                        As part of an agreement  with Elan,  Elan agreed to make
available to the Company a  Convertible  Promissory  Note ("Note") that provides
the Company the right to borrow up to $2,000,000,  subject to satisfying certain
conditions.  No more than  $500,000  may be drawn under the Note in any calendar
quarter  and at  least  one-half  of the  proceeds  must be  used to fund  SPD's
development activities.  The principal outstanding under the Note draws interest
at the prime rate plus 1% and, if not previously converted,  matures on June 30,
2005.  Prior to  repayment,  Elan has the right to  convert  all  principal  and
accrued interest into shares of the Company's Common Stock at a conversion price
of $1.75 per share. As of December 31, 1998, the outstanding  principal  balance
of the note was  $1,000,000.  On February  22,  1999,  the  Company  borrowed an
additional $500,000 under the Note.


8.            RESEARCH AND DEVELOPMENT AGREEMENTS

                        In March 1997, the Company entered into exclusive supply
and license  agreements for the  world-wide  rights to the MSI system of Siemens
A.G. The  agreements  call for Siemens to be the  exclusive  supplier of the MSI
system.  The Company paid  licensing fees of $1.1 million in both April 1997 and
1998,  to Siemens  pursuant to these  agreements.  In  addition,  under  certain
circumstances,  the  Company  will be  required  to make  another DM 2.0 million
payment to Siemens during 1999.

                        On June 15, 1998, the Company  entered into an agreement
with Zambon for a sublicense  to the  Company's  proprietary  MSI drug  delivery
system. Under this transaction, Zambon received an exclusive worldwide marketing
and development  sublicense for respiratory  products to be delivered by the MSI
system  including four drugs  currently  under  development by the Company.  The
Company maintained 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  products.  The Company was
paid an  up-front  fee in the form of an  equity  investment  and  will  receive
milestone  payments  upon  marketing  approval for each of the four products and
royalties upon commercialization.  In addition,  Zambon will provide the Company
with an interest-free line of credit totaling $2,000,000 upon the achievement of
certain early milestones.

                        On June 30,  1998,  the Company  issued  certain  equity
securities  pursuant to an agreement  with Elan (see Note 5). Under the terms of
the agreement, the Company,  through its wholly owned subsidiary,  SPD, acquired
certain pulmonary delivery  technologies for $12.5 million in cash. This payment
was  expensed  during  1998 as  acquired  R&D  in-process  technology  since the
technologies acquired have not demonstrated  technological  feasibility and have
no alternative  future uses. The Company is responsible  for the  development of
the systemic  applications  of these  technologies  (including  the Aerosol Drug
Delivery System ("ADDS") described below).  Pursuant to its agreement with Elan,
at December 31, 1998, the Company was committed to fund $2,076,000 of additional
costs related to SPD's systemic development program.

                        On July 15, 1998,  SPD acquired  from  Aeroquip-Vickers,
Inc. a new generation  metered dose inhaler system called the ADDS for $825,000.
The  purchase  price has been  expensed as acquired  R&D  in-process  technology
because the assets  acquired,  which  consist  solely of  intellectual  property
related to ADDS,  have not  demonstrated  technological  feasibility and have no
alternative   future  uses.  SPD  holds  the  rights  to  all  systemic  disease
applications  of the ADDS  technology  while  Sheffield  retains  the  rights to
develop the respiratory disease applications of ADDS.


                                      F-13
<PAGE>
                SHEFFIELD PHARMACEUTICALS, INC. AND SUBSIDIARIES
                        (a development stage enterprise)
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


                        The  Company  also is party to a number of  license  and
research  agreements,  primarily  with  universities,  hospitals,  and  research
facilities,  relating to early stage medical research projects that focus on the
development  of new  compounds  for the  treatment  of cancer,  acquired  immune
deficiency syndrome and other diseases.  As part of the Company's focus on later
stage opportunities, the Company is seeking to out-license these projects. There
can be no assurance that the Company will receive license fees or other payments
related to these  technologies.  The Company  believes these early stage license
and research  agreements will have no material impact on the financial  position
of the  Company.  For the year ended  December  31,  1998,  the  Company  funded
approximately $22,000 related to these projects.

                        On  November  20,  1997,  the  Company  entered  into  a
sublicense  agreement  with Lorus  Therapeutics,  Inc.  (formerly  Imutec Pharma
Inc.).  The  agreement  licenses  rights  to a  series  of  clotrimazole-related
compounds for the treatment of cancer, Kaposi's sarcoma and actinic keratosis to
a newly formed company,  NuChem Pharmaceuticals,  Inc. ("NuChem").  In exchange,
Lorus  Therapeutics,  Inc.  ("Lorus")  agreed to manage  and fund the  remaining
development  program.  The Company  received  $500,000 in cash upon  signing the
agreement,  which was  recognized as revenue  during the year ended December 31,
1997,  and received  583,188  shares of Lorus stock valued at $350,000 which was
recognized as revenue  during the year end December 31, 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 in NuChem.


9.            RELATED PARTY TRANSACTIONS

                        During 1998, three executive officers provided funds for
use by the Company  comprised of  short-term  notes having a 7% annual  interest
rate, unpaid salaries and unreimbursed  expenses. The largest amount outstanding
to the executive officers during 1998 was $241,740. As of December 31, 1998, all
amounts under the short-term notes have been repaid.

                        During 1998, certain shareholders provided funds for use
by the Company comprised of short-term notes totaling $150,000. These notes bore
interest  at the rate of 7% per annum and  matured  on  September  8,  1998.  On
maturity,  the Company repaid  principal of $50,000 plus accrued  interest,  and
extended  the terms of the  remaining  principal  balance  to  January  8, 1999.
Subsequent  to December 31, 1998,  the Company  amended the note  extending  its
maturity to April 8, 1999.


10.           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,
1998 and 1997 which are considered noncurrent, are as follows:

          Deferred Tax Assets                       1998            1997
          -------------------                       ----            ----

   Net operating loss carryforwards .........   $ 12,600,000    $ 12,400,000
   Costs capitalized for tax purposes .......     14,391,000         578,000
   Deferred tax asset valuation allowance ...    (26,991,000)    (12,978,000)
                                                ------------    ------------

      Net deferred tax asset ................   $       --      $       --
                                                ============    ============

                        The Company has recorded a valuation  allowance  for the
entire  deferred tax asset due to the  uncertainty of its  realization.  The net
change in the total valuation allowance for the year ended December 31, 1998 was
an increase of $14,013,000. As a result of changes in ownership, and pursuant to
Internal  Revenue Code Section 382, the net  operating  loss  carryforwards  are
limited in offsetting  future  taxable  income.  Future changes in ownership may
limit net operating  loss  carryforwards  generated in the year of change.  As a
result  of  differences  between  book  and tax  requirements  for  writing  off
intangible assets acquired,  such as in-process R&D, the Company has capitalized
the  in-process  R&D for tax purposes.  The deferred tax asset will be amortized
into taxable income over a useful life of 15 years.








                                      F-14

`

                              EMPLOYMENT AGREEMENT

                  AGREEMENT  made as of the 16th day of November,  1998,  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 Scott A. Hoffmann, who currently resides at
17664 Wildridge Drive, Chesterfield, Missouri 63005 ("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 and Chief Financial
Officer, 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 and Chief Financial
Officer, 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 his  employment  hereunder,  except as hereinafter  provided,  he will
devote his full  business and  professional  time in utilizing  his business and
professional expertise, with proper attention,  knowledge and skills faithfully,
diligently  and to the best of his ability in furtherance of the business of the
Corporation  and its  subsidiaries  and will perform the duties  assigned to him
pursuant to Paragraph 1 hereof.  As Vice President - Finance and  Administration
and Chief Financial  Officer,  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   that  are   consistent   with   Executive's   financial  and
administrative training and experience.

                  (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  reasonably
establish.  During the period of his 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   engaging  in  (i)   recreational,
eleemosynary,   educational  and  other  activities,  which  activities  do  not
materially interfere with his duties hereunder and shall occur during vacations,
holidays and other periods

                                       -1-
<PAGE>
outside of business hours and (ii) any other  educational  activities  that have
been approved in advance by the Company's Chief Executive Officer.

                  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  16,  2001.  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 his desire to terminate or
renegotiate  the  terms  of 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  his  services
hereunder,  the  Corporation  shall pay to Executive (i) a base annual salary at
the rate of  $120,000,  payable in equal  installments  in  accordance  with the
normal payroll practices of the Corporation 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 he is elected or
appointed.

                  5. STOCK OPTIONS. As additional  compensation for his 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 120,000
shares of the Corporation's  common stock at an exercise price per share no less
than 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 he
is  eligible  under the terms and  conditions  thereof,  in any profit  sharing,
pension, retirement, hospitalization,  disability, medical service, insurance or
other 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  entitled  to three (3)  weeks'  paid
vacation in respect of each 12-month  period  during the term of his  employment
hereunder,  such vacation to be taken at times  mutually  agreeable to Executive
and the Board of Directors of the Corporation.


                                       -2-
<PAGE>
                  (c)  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 him in connection  with the performance of his
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 his  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,  he 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  himself  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 him or his
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 to prohibit
Executive  from investing his 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

                                       -3-
<PAGE>
concerned with its operations, sales, business and affairs, and he shall not, at
any time during his  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 his 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  his
         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 his
         employment by the  Corporation or its agents totally  independent  from
         any disclosure from the Corporation or its agents.

                           (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 his  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 his  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.

                                       -4-
<PAGE>
                  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 his 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
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 Employee's
employment by the  Corporation for any reason (other than for Cause or by reason
of Employee becoming Disabled), Employee shall be paid a severance payment in an
amount equal to $5,000 multiplied by the number of full months that Employee has
been employed by the Corporation prior to such termination, with such amount not
to exceed  $60,000,  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.

                           (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 his
employment by the  Corporation  Executive shall become Disabled (as that term is
hereinafter  defined)  he shall  continue to receive the full amount of the base
salary to which he was theretofore  entitled for a period of six months after he
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 his 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 his base salary until he shall cease to be Disabled and shall have
resumed his 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

                                       -5-
<PAGE>
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 his
duties  hereunder  for a period  of 90  consecutive  days or for 120 days in any
consecutive  180-day  period  and  (y)  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 his duties  hereunder for the following 120 days. In the
event that Executive shall dispute any determination of his 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 his
base salary to and including the date of termination.

                  15. TERMINATION BY EMPLOYEE. 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.

                  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

                                       -6-
<PAGE>
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
himself 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.  Notwithstanding  anything to
the contrary contained herein, the Company shall have no right to terminate this
Agreement  solely by  reason  of the  Company's  inability  to obtain  insurance
policies on the life of Executive under this paragraph.

                  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 his 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,   his  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.

                  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.

                                       -7-
<PAGE>
                  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.

                  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: /s/ Loren G. Peterson
                                  ----------------------------
                                  Loren G. Peterson
                                  President & Chief Executive Officer



                              /s/ Scott A. Hoffmann
                              ---------------------
                              Scott A. Hoffmann


                                       -8-

                                                                    Exhibit 10.8


                       SHEFFIELD MEDICAL TECHNOLOGIES INC.

                             1993 STOCK OPTION PLAN
                       (as amended through July 15, 1998)


         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.

                                       -1-
<PAGE>
                  (f) "EMPLOYEE"  shall mean key employees,  including  salaried
         officers  and  directors  and other  key  individuals  employed  by the
         Company.  The payment of a 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 Four Million  (4,000,000)  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

                                       -3-
<PAGE>
                  serve on the Committee if that person's membership would 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 shall be no
         less than one hundred ten percent  (110%) of the Fair Market  Value per
         Share on the date of grant.

                                       -5-
<PAGE>
                  (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 granted  without  security,
but the maximum  credit  available  shall not exceed the exercise  price for the
Shares for

                                       -6-
<PAGE>
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

                                       -9-
<PAGE>
         mutually  agreed  otherwise  between the Optionee and the Board,  which
         agreement  must  be in  writing  and  signed  by the  Optionee  and the
         Company.

         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.


                                      -10-
<PAGE>
                  An Optionee  who is also an officer of the  Company  must make
the above described election:

                  (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

                                      -11-
<PAGE>
         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  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-

                                                                      EXHIBIT 21



                 SUBSIDIARIES OF SHEFFIELD PHARMACEUTICALS, INC.



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

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

3.    Systemic Pulmonary Delivery, Ltd., a Bermuda 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 March 11,
1999,  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, 1998.



                                        /s/ Ernst & Young LLP
St. Louis, Missouri
March 23, 1999

<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-31-1998
<PERIOD-END>                                                    DEC-31-1998
<CASH>                                                            2,456,290
<SECURITIES>                                                        127,774
<RECEIVABLES>                                                             0
<ALLOWANCES>                                                              0
<INVENTORY>                                                               0
<CURRENT-ASSETS>                                                  2,623,099
<PP&E>                                                              493,417
<DEPRECIATION>                                                      253,995
<TOTAL-ASSETS>                                                    2,862,521
<CURRENT-LIABILITIES>                                             1,166,266
<BONDS>                                                                   0
                                                     0
                                                             119
<COMMON>                                                            270,584
<OTHER-SE>                                                          384,502
<TOTAL-LIABILITY-AND-EQUITY>                                      2,862,521
<SALES>                                                                   0
<TOTAL-REVENUES>                                                    410,273
<CGS>                                                                     0
<TOTAL-COSTS>                                                             0
<OTHER-EXPENSES>                                                 18,970,734
<LOSS-PROVISION>                                                          0
<INTEREST-EXPENSE>                                                  251,363
<INCOME-PRETAX>                                                (18,560,461)
<INCOME-TAX>                                                              0
<INCOME-CONTINUING>                                            (18,560,461)
<DISCONTINUED>                                                            0
<EXTRAORDINARY>                                                           0
<CHANGES>                                                                 0
<NET-INCOME>                                                   (18,560,461)
<EPS-PRIMARY>                                                         (.85)
<EPS-DILUTED>                                                         (.85)
        

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