THERATECH INC /DE/
10-K, 1998-03-31
PHARMACEUTICAL PREPARATIONS
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<PAGE>   1

                                  UNITED STATES
                       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, 1997

                                                 OR

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

For the transition period from __________ to ________

                         Commission File Number: 0-20063

                                 THERATECH, INC.
             (Exact name of registrant as specified in its charter)

           DELAWARE                                              87-0420511
(State or other jurisdiction of                               (I.R.S. Employer
 incorporation or organization)                              Identification No.)

                   417 WAKARA WAY, SALT LAKE CITY, UTAH 84108
               (Address of principal executive offices) (Zip Code)

                                 (801) 588-6200
              (Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:     None

Securities registered pursuant to Section 12(g) of the Act:     Common Stock

      Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes [X] No [ ]

      Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in the definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. [ ]

      As of February 27, 1998, the aggregate market value of the voting stock
held by non-affiliates of the registrant was approximately $97,754,000 based on
the closing sale price as reported on the Nasdaq National Market on such date.
Shares of Common Stock held by officers, directors and holders of more than 5%
of the outstanding Common Stock have been excluded from this calculation because
such persons may be deemed to be affiliates. This determination of affiliate
status is not necessarily a conclusive determination for other purposes.

      The number of shares of Common Stock outstanding on February 27, 1998 was
21,149,953.

                       DOCUMENTS INCORPORATED BY REFERENCE

      Part II and Part IV of this Report on Form 10-K incorporate information by
reference from the Registrant's 1997 Annual Report to Stockholders. Part III of
this Report on Form 10-K incorporates information by reference from the
Registrant's Proxy Statement for its 1998 Annual Meeting of Stockholders.


<PAGE>   2

                                     PART I

ITEM 1. BUSINESS

        TheraTech, Inc. ("TheraTech" or the "Company") develops advanced,
controlled release and other drug delivery products which administer drugs
through the skin, by oral delivery to the gastrointestinal tract, through
tissues in the oral cavity, through absorption in the lungs and by other means.
The Company believes its products provide advantages over existing controlled
release drug delivery products and conventional oral, injectable, inhalation and
continuous infusion methods by increasing efficacy, safety, bioavailability
and/or patient compliance and comfort. The Company focuses its research and
development efforts on the design and development of improved delivery systems
for off-patent and proprietary drugs.

        Historically, TheraTech's product development activities have been
conducted independently or pursuant to collaborative research and development
agreements with pharmaceutical companies. For products developed independently
by TheraTech, marketing rights may later be transferred to pharmaceutical and
other companies under licensing and marketing agreements. These agreements
normally provide for TheraTech to receive payments in various forms, which can
include licensing fees and other payments upon the execution of an agreement,
milestone payments upon achievement of technical and regulatory goals, and
periodic payments in the form of cost reimbursements for product development and
clinical evaluation of a specified product, including a portion of general and
administrative expenses. The client generally receives marketing rights to the
product and TheraTech generally retains manufacturing rights, for which it
recognizes product sales revenue at the time TheraTech ships product to the
client and/or at the time the client sells product to its customers.

        To date, four research and development programs have resulted in
commercialized products. The United States Food & Drug Administration ("FDA")
has cleared for marketing three of TheraTech's developed products. Two of these
products, the Androderm(R) two and one half milligram ("2.5 mg") testosterone
transdermal system for men and the Alora(R) estradiol transdermal system for
women, received marketing clearances within one year of their respective initial
submissions. Prior to 1997, the testosterone transdermal system had received
marketing clearances in Brazil, Denmark, Finland, Ireland, South Korea, Sweden,
Switzerland and the United Kingdom, and during 1997 marketing clearances were
received in Australia, Germany, Norway and certain Central and South American
countries. During 1997, the FDA cleared for marketing TheraTech's third product,
its Androderm five milligram ("5 mg") testosterone transdermal system. This
clearance was received within six months of filing its supplemental New Drug
Application ("sNDA") with the FDA. One of TheraTech's marketing partners,
together with that partner's sublicensees, have obtained regulatory approval to
market in certain European countries TheraTech's fourth product, its
nitroglycerin transdermal system. An Abbreviated New Drug Application ("ANDA")
for TheraTech's nitroglycerin product is under review by the FDA. Additionally,
TheraTech has more than 20 other drug delivery products under development and
testing in the United States, Europe, Japan and South Korea, of which nine are
in various stages of clinical development.

DRUG DELIVERY

        Conventional dosage forms currently dominate the pharmaceutical market.
These dosage forms can be grouped by routes of administration into oral,
injectable, topical, nasal, inhalation, ocular and rectal delivery categories.
Oral dosage forms comprise a substantial majority of all present dosage forms.
Conventional dosage forms can offer ease of administration and low cost-per-use,
but often require inconvenient dosage intervals and may result in higher
side-effects, reduced efficacy and poor bioavailability. Controlled drug
delivery systems, also referred to as alternate drug delivery systems, have been
introduced to eliminate or reduce the limitations of conventional therapies and
currently comprise a small percentage of the pharmaceutical market. Controlled
drug delivery systems currently marketed by pharmaceutical companies include
transdermal patches, oral controlled release products, biodegradable and
non-biodegradable implants and long-acting injectables.

        Controlled drug delivery seeks to either maintain a more consistent and
appropriate drug level in the bloodstream than conventional dosage forms or
eliminate the need for injections. Conventional dosage forms often produce
higher initial drug levels than required for optimal therapy, increasing risks
of side effects, and subsequently, lower than therapeutically optimal levels as
the drug is metabolized and cleared from the body. Controlled drug delivery
technologies allow for the development of "patient-friendly" dosage forms which
may eliminate the need for frequent administration, such as frequent injections
or taking tablets several times a day, and thus can improve safety, efficacy and
patient compliance. This can be especially beneficial for certain patient
populations, such as elderly patients, who often require several medications
with differing dosage regimens.



                                       2
<PAGE>   3

        Controlled drug delivery can provide patent protection for a product
that includes a drug that has not been patented or for which the patent is
expiring or has expired. Patented methods of controlled drug delivery may extend
product life and provide a pharmaceutical company with a competitive advantage
over generic products delivered by conventional means. The controlled delivery
of certain drugs can also result in the approval of new therapeutic indications,
thereby expanding the utility of and the market for those drugs.

COMPANY STRATEGY

        TheraTech's strategy is to develop, manufacture and market advanced,
controlled release and other drug delivery products for a wide variety of
therapeutic applications utilizing a broad array of proprietary delivery
technologies. The Company's strategy consists of five basic elements:

  Collaborative Product Development with Established Pharmaceutical Companies

        TheraTech is developing several drug delivery products in collaboration
with major pharmaceutical companies. In general, TheraTech's collaborative
partners provide research funds, and clinical and other support during the
product development process. Either TheraTech or a pharmaceutical company may
bring an idea for a drug delivery product to the other, seeking to collaborate
on the development and testing of a new product. Once a product is approved,
TheraTech's partners generally provide an established and trained marketing and
sales force to sell TheraTech's product.

  Independent Product Development

        In addition to its collaborative efforts, the Company is engaged in
independent product development. If successful, independently developed products
will provide the Company with the flexibility either to market the product
itself or enter into agreements with pharmaceutical partners on terms generally
more favorable to the Company than if the agreement was entered into at an
earlier stage of development. Although independent product development entails
more financial risk than initially working with a collaborative partner, the
Company is better able to control the development process and retain a greater
portion of the product revenue stream. TheraTech currently has several products
which are being or were initially developed independently, including
testosterone transdermal patches for men; estradiol, estradiol/progestin,
testosterone, and estradiol/testosterone transdermal patches for women; and
oral, oral transmucosal, pulmonary and topical dosage form products.

  Use of Multiple Drug Delivery Technologies

        TheraTech typically begins product development by defining the target
blood level profile for a given drug and choosing from its broad technology base
the most appropriate dosage form and route of administration to achieve that
profile. TheraTech's extensive technology base enables the Company to deliver a
much wider variety of drugs more effectively than could be delivered from the
use of a single delivery technology. TheraTech devotes significant resources to
continued development of new drug delivery technologies as well as additional
products based on its existing technologies. TheraTech's strategy is to maintain
ownership of its drug delivery technologies and to license only specific product
applications.

  Control of the Product Manufacturing Process

        TheraTech products are manufactured using several proprietary materials
and production technologies. By manufacturing its own products and generally
those it develops for its pharmaceutical partners, TheraTech can protect the
proprietary aspects of the manufacturing process, retain control over the
quality of its products and increase its share of the product revenue stream.
TheraTech generally produces product for development requirements and clinical
supplies in its pilot plant facilities, and commercial transdermal products in
its 63,000 square foot manufacturing facility. This facility is equipped to
produce commercial quantities of both liquid reservoir and matrix transdermal
patches, and may be adapted to manufacture other dosage forms.

  Marketing and Sales

        TheraTech's objective is to establish an internal sales force to market
some of its independently developed products and co-promote certain of its
licensed products. The Company will initially focus on selected market segments
expected to provide optimum return on the sale of its products. The Company will
also seek in-licensing product opportunities appropriate with the marketing
focus. By developing this capacity, TheraTech plans to expand the markets for
its existing products through direct sales activities, while continuing to work
effectively with its marketing partners. TheraTech plans to develop a sustained
portfolio of products for a target group of physicians and patients through
research, development and in-licensing.

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<PAGE>   4

THERATECH TECHNOLOGIES

        TheraTech approaches drug delivery from a multi-disciplinary
perspective, applying innovations in medical and pharmaceutical sciences,
fundamental knowledge of drug permeation mechanisms and advanced technologies in
polymer science. This process begins by first defining the desired blood level
profile, then the most appropriate methods of administration, such as
transdermal, oral, oral transmucosal, pulmonary, or others are identified for
product development. For new chemical entities under development, the optimal
profile is frequently not known. Further, the ideal dosing for many drugs may
not be fully understood due to absorption or delivery difficulties. In such
cases, TheraTech's initial objective is to develop a delivery technology to
administer these drugs which may not otherwise be deliverable without invasive
methods such as injections, and to subsequently develop an optimized dosage
form.

  Transdermal Drug Delivery

        Transdermal drug delivery entails the administration of drugs through
the skin from an adhesive patch. This method of drug delivery is ideally suited
for certain drugs that must be injected and for many orally delivered drugs that
are degraded either in the gastrointestinal tract or by the liver, such that
only a small fraction of the total administered dose is actually absorbed and
therapeutically effective. Attempts to overcome such inefficient oral delivery
through increased dosage may lead to direct adverse effects in the liver and
result in high levels of the metabolized drug ("metabolites") which can
potentiate certain side-effects. Transdermal delivery systems overcome such
"first-pass" metabolism problems by delivering the drug directly into the
bloodstream at prescribed rates. Further, transdermal delivery systems provide a
convenient means to administer many drugs over prolonged periods, which would
otherwise require frequent dosing. Thus, transdermal delivery can significantly
enhance the therapeutic benefits of certain drugs through improved efficacy,
safety and bioavailability while improving patient compliance and comfort.

        Due to the significant barrier properties of skin, transdermal drug
delivery has historically been limited to those drugs which are highly potent
and can naturally permeate skin. TheraTech has developed and obtained patents on
several enhancer compositions for use in transdermal drug delivery. The Company
has demonstrated that these proprietary enhancers can be used to create
transdermal products that will deliver a variety of drugs at higher rates than
would otherwise be possible. These patented enhancer compositions consist of
agents that have already been approved for human use in pharmaceutical, cosmetic
and/or food applications. As a result, the Company believes products employing
these enhancers can achieve regulatory approval more quickly than products using
new chemical entity enhancers. The Company also believes that its enhancer
technologies represent a significant competitive advantage over other
transdermal drug delivery products.

        TheraTech has developed two principal types of transdermal patch
systems, the TheraDerm-LRS(R) ("Liquid Reservoir System" or "LRS") and the
TheraDerm-MTX(R) ("Matrix System" or "MTX"). The Company can incorporate the use
of its enhancer technologies into either system type. TheraDerm-LRS was designed
and developed to overcome the limitations of other liquid reservoir systems.
Numerous drug formulations can be incorporated into a TheraDerm-LRS patch since
the system is not rate limiting to the administration of the drug and the drug
reservoir is physically isolated from the adhesive within the system. This
system design also eliminates adverse drug formulation interactions with the
patch adhesive. The TheraDerm-LRS patch is particularly useful for drugs that
require higher doses or have intrinsically low transdermal permeability. Two
United States patents, as well as international patents, have been issued for
the TheraDerm-LRS transdermal patch.

        The TheraDerm-MTX is an adhesive matrix patch design. The drug is
incorporated in the adhesive, resulting in a light and flexible patch which
conforms to the skin for maximum adhesion and comfort. The TheraDerm-MTX employs
a convenient application tab, allowing the user to easily apply the patch.
Several United States patents have been issued to provide a proprietary position
for products developed by TheraTech utilizing the TheraDerm-MTX patch design.


  Oral Transmucosal Drug Delivery

        The Company has placed considerable emphasis on the development of new
technologies for the administration of large molecule drugs including peptides
and polysaccharides, as well as other drugs requiring rapid onset of action or
that cannot be readily delivered orally or transdermally. These technologies
enable the delivery of many such drugs across the mucosal tissue of the oral
cavity ("oral transmucosal delivery"). The advantages of this approach over
other delivery routes include: high drug permeability relative to transdermal
administration; reduced metabolism and increased bioavailability relative to
oral dosing where enzymatic degradation in the intestine and by the liver is
significant; rapid absorption; easy access to the oral cavity for convenient
application or removal of the dose by the patient; localization of the dosage
form at 



                                       4
<PAGE>   5

the delivery site over prolonged periods to extend the duration of drug delivery
and maximize the extent of absorption; and greater resistance to chemical and
mechanical irritation relative to other mucosal delivery routes.

        TheraTech's oral transmucosal ("OTM") delivery systems are solid dosage
forms, which will adhere to various surfaces in the oral cavity and deliver
drugs over a period of time. TheraTech views its OTM technology as a patient
friendly alternative to systemic injection that has wide applicability to many
peptide and other macromolecular drugs, as well as smaller conventional drugs
which must currently be injected. The Company has been issued patents for
certain OTM designs and compositions, and has filed additional patent
applications for other system designs and therapeutic applications. The Company
has conducted human feasibility studies demonstrating the ability of these
systems to deliver therapeutic levels of glucagon-like insulinotropic peptide
("GLP-1"). The results of this study were published in the August 1996 issue of
Diabetes Care. The Company has also conducted similar studies on GLP-1 in Type
II diabetic patients. GLP-1 is an investigational drug for the treatment of
non-insulin dependent diabetes mellitus, commonly referred to as Type II or
adult-onset diabetes. The results from these studies conclusively demonstrate
the ability to deliver peptide drugs using TheraTech's proprietary OTM
technology.

        TheraTech entered into a multi-product collaboration with Eli Lilly and
Company ("Lilly") early in 1997 to evaluate certain Lilly peptide drugs and
develop OTM dosage forms using TheraTech's proprietary technologies. Two Lilly
peptide drugs are currently under evaluation.

        The Company is also developing long lasting lozenges which provide
controlled release drug delivery in the oral cavity. This lozenge technology
complements the Company's transmucosal delivery technology and is applicable to
a wide variety of drugs for either local delivery or systemic delivery through
the mucosal tissues of the mouth. During 1997, TheraTech entered into a
collaboration with SmithKline Beecham Consumer Health to complete the
development of TheraTech's nicotine lozenge, as well as to market the product.

  Oral Drug Delivery

        The Company continues to invest resources in the area of orally
administered controlled release dosage forms by developing and/or acquiring
patented technologies for controlled release dosage forms formulated using FDA
approved or acceptable materials and using established solid dosage form
manufacturing processes. The Company is currently developing several oral
controlled release products.

  Other Delivery Technologies

        To complement its transdermal efforts, TheraTech is developing topical
formulations for dermatological applications based upon its proprietary skin
enhancer technologies. These topical formulations are designed to maximize the
delivery of the drug to the skin itself, and more particularly to the regions of
skin underlying the outer barrier layer. TheraTech's proprietary enhancer
technologies allow topical dosing to the skin at significantly greater levels
than those provided by conventional topical formulations and technologies. This
allows the Company to increase dosing to the target site, which may result in
increased therapeutic efficacy for many topically administered drugs.

        TheraTech has acquired exclusive rights to two inhalation drug delivery
technologies. A dry powder inhalation ("DPI") respiratory drug delivery device
and an assist device for use with existing metered dose inhalers ("MDI"). Design
features of both devices include breath activation by the patient and an
expected lower production cost compared to other devices currently under
development. Both devices, acquired from Innovative Devices, LLC, have patents
issued and/or pending with the first United States patent on the DPI device
issued in December 1997. The MDI device is targeted to be compatible with
approximately 80 percent of the asthma medications currently on the market and
to be reusable for up to a year. The DPI device is being developed primarily for
certain peptides and larger protein drugs and has a mechanism that should
provide maximum deaggregation of drug particles. Both MDI and DPI devices are in
early stages of development. These additional technologies expand TheraTech's
protein drug delivery capabilities and provide an entry into the important
pulmonary drug delivery area, a market that is both large and growing. In fact,
the worldwide respiratory drug market totaled approximately $7 billion in 1996
and is expected to surpass $11 billion by the year 2001.



                                       5
<PAGE>   6

        THERATECH PRINCIPAL PRODUCTS AND KEY PARTNERSHIPS

        The following table lists the potential indications, current status as
of March 1998, and collaborative marketing partners for each of the Company's
principal products that have been approved or are in various stages of
development. The table does not include all the products the Company has in its
development pipeline.

<TABLE>
<CAPTION>
          PRODUCT                TARGETED               STATUS                        PARTNERS
        DESCRIPTION             INDICATION                                     TERRITORY/AVAILABILITY
- ---------------------------- ----------------- ------------------------ -----------------------------------
<S>                          <C>               <C>                      <C>
TESTOSTERONE                 Male Hypogonadism Launched in: U.S., So.   SMITHKLINE BEECHAM (U.S., Canada,
(Transdermal TheraDerm-LRS)                    Korea, (Androderm(R));   Ireland and U.K.); CEPA (Spain);
                                               U.K., Ireland            LABORTERAPIA (Portugal); ASTRA
                                               (Andropatch(TM));        (Scandinavia, Austria, Germany
                                               Sweden, Denmark,         and Switzerland); SCHWARZ PHARMA
                                               Finland (Atmos(R)).      (Italy, France, Benelux countries
                                               Approved in: Norway      and certain Eastern European
                                               (Atmos), Switzerland,    countries); WYETH-AYERST (Mexico,
                                               Germany, Australia and   Central and South America);
                                               certain countries in     SAMYANG (So. Korea)
                                               Central and South
                                               America.
- ---------------------------- ----------------- ------------------------ -----------------------------------
ESTRADIOL                    Female HRT        Launched in U.S.         PROCTER & GAMBLE (Worldwide,
(Transdermal TheraDerm-MTX)  Osteoporosis      (Alora(TM)).  Approved   except in certain Asian
                                               in Canada and the U.K.   countries); SAMYANG (So. Korea)
- ---------------------------- ----------------- ------------------------ -----------------------------------
FACE LIFT(TM) (Dernal        Cosmetic          Supplied through         UNIVERSITY MEDICAL (Worldwide)
Vitamin C Anti-Wrinkle       Wrinkle           Natrapac, a
Patch(TM))                   Reduction         wholly-owned
                                               subsidiary of
                                               TheraTech. Launched
                                               in U.S.
- ---------------------------- ----------------- ------------------------ -----------------------------------
NITROGLYCERIN                Angina Pectoris   Launched in:  France,    LAVIPHARM (Worldwide, except
(Transdermal TheraDerm-MTX)                    Greece, Holland and      So. Korea); SUB DISTRIBUTORS:
                                               Italy.                   LAVIPHARM/SYNTHELABO (Greece);
                                               ANDA filed in U.S.       WYETH-LEDERLE (Belgium);
                                               sNDS filed in Canada     NOVARTIS and KNOLL (Italy);
                                                                        RHONE-POULENC RORER CANADA
                                                                        (Canada); SYNTHELABO (France,
                                                                        Spain, and Portugal); BRISTOL
                                                                        MYERS SQUIBB (Switzerland);
                                                                        LOREX SYNTHELABO (The
                                                                        Netherlands); SAMYANG (So.
                                                                        Korea)
- ---------------------------- ----------------- ------------------------ -----------------------------------
ESTRADIOL/PROGESTIN          Female HRT        Phase III                PROCTER & GAMBLE (Worldwide, except
(Transdermal TheraDerm-MTX)  Osteoporosis                               in certain Asian countries);
                                                                        SAMYANG (So. Korea)
- ---------------------------- ----------------- ------------------------ -----------------------------------
PROGESTIN                    Female HRT        Phase II                 Available Worldwide
(Transdermal TheraDerm-MTX)
- ---------------------------- ----------------- ------------------------ -----------------------------------
TESTOSTERONE                 Female HRT        Phase II                 PROCTER & GAMBLE (Worldwide,
(Transdermal TheraDerm-MTX)  Sexual                                     except in certain Asian
                             Dysfunction,                               countries); SAMYANG (So. Korea)
                             Osteoporosis
- ---------------------------- ----------------- ------------------------ -----------------------------------
TESTOSTERONE                 Cancer and HIV    Phase II                 THERATECH, INC.
(Transdermal TheraDerm-MTX)  Wasting
- ---------------------------- ----------------- ------------------------ -----------------------------------
OXYBUTYNIN                   Urinary Urge      Phase II                 MEIJI MILK (Asia);
(Transdermal TheraDerm-MTX)  Incontinence                               Meiji/Sankyo (Japan);
                                                                        Available in the remainder of
                                                                        the world
- ---------------------------- ----------------- ------------------------ -----------------------------------
NICOTINE (OTM Lozenge)       Smoking           Phase I/II               SMITHKLINE BEECHAM CONSUMER
                             Cessation                                  HEALTHCARE (Worldwide except
                                                                        in certain Asian countries)
- ---------------------------- ----------------- ------------------------ -----------------------------------
GLP-1  (OTM)                 Diabetes          Phase I                  Available Worldwide
- ---------------------------- ----------------- ------------------------ -----------------------------------
DESMOPRESSIN  (OTM)          Nocturnal         Phase I                  Available Worldwide
                             Enuresis
- ---------------------------- ----------------- ------------------------ -----------------------------------
ESTRADIOL/TESTOSTERONE       Female HRT        Phase I                  PROCTER & GAMBLE (Worldwide,
(Transdermal TheraDerm-MTX)  Sexual                                     except in certain Asian
                             Dysfunction                                countries)
                             Osteoporosis
- ---------------------------- ----------------- ------------------------ -----------------------------------
LILLY PEPTIDE 1  (OTM)       Undisclosed       Development              LILLY (Worldwide)
- ---------------------------- ----------------- ------------------------ -----------------------------------
BUSPIRONE                    Anxiety           Development              Available Worldwide
(Transdermal TheraDerm-MTX)
- ---------------------------- ----------------- ------------------------ -----------------------------------
ANALGESIC  (OTM)             Pain              Development              Available Worldwide
- ---------------------------- ----------------- ------------------------ -----------------------------------
CALCITONIN  (OTM)            Osteoporosis      Research                 Available Worldwide
- ---------------------------- ----------------- ------------------------ -----------------------------------
ADRIAMYCIN-LIGAND            Cancer            Research                 Available Worldwide
- ---------------------------- ----------------- ------------------------ -----------------------------------
LILLY PEPTIDE 2  (OTM)       Undisclosed       Research                 LILLY (Worldwide)
- ---------------------------- ----------------- ------------------------ -----------------------------------
</TABLE>

(1) For an explanation of the various stages of development, see "Risk Factors -
Government Regulation and Product Approvals." For international markets, a
pharmaceutical company is subject to regulatory requirements, interactions and
product approvals substantially the same as those in the United States. Although
the clinical trials can be different than those conducted in the United States,
the trials themselves are substantially the same as those in the United States
and are commonly referred to in the industry as Phases I, II, and III.



                                       6
<PAGE>   7

  Testosterone Transdermal System for Male Hormone Replacement Therapy

        The Company independently developed a 2.5 mg LRS testosterone
transdermal system for the treatment of male hypogonadism. For the vast majority
of patients, two patches are applied to non-scrotal skin, providing testosterone
and its active metabolites at levels closely matching those which result from
natural testosterone production and metabolism in normal men.

        TheraTech completed the development and launch of a second dosage form
testosterone transdermal system that delivers a nominal daily dose of five
milligrams of testosterone from a single patch in a manner equivalent to the
application of two 2.5 mg Androderm patches. A single 5 mg patch provides
additional convenience over the two patch per day dosage. The sNDA for this
product was cleared by the FDA in May 1997.

        Current competitive products include injectable synthetic hormones, oral
androgens and a transdermal patch which is applied to the shaved scrotum. In
addition, a non-scrotal testosterone product of a competitor has recently been
cleared for marketing by the FDA and a sublingual testosterone product of a
competitor was recently found unapprovable by the FDA. TheraTech believes that
its systems offer significant advantages over competitive products in that the
natural hormone is administered in a more physiological fashion from more
patient friendly products, and are smaller in size than the competitor's
non-scrotal patch.

        TheraTech has assigned United States, Canadian, Ireland and United
Kingdom marketing rights to its 2.5 mg testosterone transdermal system to
SmithKline Beecham. Under the agreement with SmithKline Beecham, TheraTech
retains an option to co-promote the product in the United States under certain
conditions. During 1997, TheraTech reacquired rights from SmithKline Beecham to
Austria, Germany, Switzerland, Benelux countries, Greece, Italy, Australia and
New Zealand, and also reacquired rights to France and French-speaking African
countries from Laboratoires Fournier. Also during 1997, TheraTech assigned
marketing rights to Schwarz Pharma for Italy, France, the Benelux countries, and
certain countries in Eastern Europe. TheraTech assigned the Scandinavian
marketing rights for the product to Astra AB ("Astra") in 1995, and in 1997
expanded Astra's rights to include Austria, Germany, and Switzerland. The
Company also has distribution agreements to market this product with Compania
Espanola De La Penicilina Y Antibioticos, S.L. ("CEPA") in Spain; Laborterapia -
Produtos Farmaceuticos, S.A. ("Laborterapia") in Portugal; and Samyang
Corporation ("Samyang") in South Korea. The Company has granted Wyeth-Ayerst
International, Inc. ("Wyeth-Ayerst"), a division of American Home Products
Corporation, exclusive testosterone patch marketing and distribution rights in
Mexico, Central America and South America.

        TheraTech has granted marketing rights for the 5 mg patch to Astra,
CEPA, Laborterapia, Schwarz Pharma, SmithKline Beeacham and Wyeth-Ayerst in
their respective territories.

        The testosterone transdermal system for men was cleared for marketing
under the trade name Androderm by the FDA and is currently marketed by
SmithKline Beecham in the United States. The product is or will be marketed
under the trade name Atmos(R) in Denmark, Finland, Norway, and Sweden; and
Andropatch(TM) in Ireland and the United Kingdom. In addition, Samyang had
received government approval to market the product under the trade name
Androderm in South Korea and launched the product during 1997.

        Male hypogonadism results when the body cannot produce normal levels of
testosterone. The consequences of testosterone deficiency include decreased
libido, impotence, fatigue, depression, and muscle and bone loss. It is
estimated that approximately one percent to five percent of men in the United
States between the ages of 20 and 65 suffer from hypogonadism, including
approximately 200,000 men afflicted by Klinefelter's syndrome (a genetic
condition in which men have an extra female chromosome). In such cases,
testosterone replacement therapy may have a beneficial impact. Furthermore, it
is now recognized that natural testosterone production can be dramatically
reduced with age in men, of which it is estimated that 20 percent or more of men
over age 65 are hypogonadal. The effects of testosterone replacement in
hypogonadal, elderly men have not been systematically evaluated. Additionally,
men with certain disease states, such as HIV, type II diabetes and cancer, may
also be hypogonadal.

  Female Hormone Replacement Therapy

        The Company is developing a number of transdermal products for female
Hormone Replacement Therapy ("HRT"). These include an estradiol patch, an
estradiol/progestin combination patch, a progestin patch, a female testosterone
patch and an estradiol/testosterone combination patch. TheraTech has a
development and marketing agreement with Procter & Gamble Pharmaceutical, Inc.
("Procter & Gamble") which previously provided worldwide rights (excluding Asia)
for its estradiol patch and estradiol/progestin combination patch. In late 1997,
the agreement with Procter & Gamble was expanded to include estradiol and
estradial/progestin products for certain Asian countries and further expanded to
include the female 



                                       7
<PAGE>   8

testosterone and estradial/testosterone patches worldwide excluding certain
Asian countries. The Company also has an agreement with Samyang to market the
estradiol patch and estradiol/progestin combination patch in South Korea.

        TheraTech submitted an New Drug Application ("NDA") on its MTX estradiol
patch in December 1995, and received FDA clearance in December 1996 under the
trade name Alora. This was TheraTech's second product approval in two years,
both occurring within one year of their initial submission. Alora has also
received regulatory approval in Canada and the United Kingdom. The commercial
launch of Alora occurred in the United States during May 1997 by Procter &
Gamble. The Alora patch is available in three dosage strengths: 0.05; 0.075; and
0.1 milligrams per day.

        In collaboration with Procter & Gamble, the Company also initiated
United States Phase III clinical trials for its MTX estradiol/progestin
combination patch in 1996. These studies are evaluating multiple dosing levels
and regimes with the combination patch. The estradiol and estradiol/progestin
combination products are being developed for the treatment of menopausal
symptoms and other conditions associated with estrogen deficiency, including
osteoporosis. Menopause is a condition associated with aging in which women no
longer produce steroid hormones at the physiological levels which were present
in their younger years. Menopause can also result from surgical intervention,
such as oophorectomy. It is now accepted that bone loss is associated with
menopause, which can lead to osteoporosis, a debilitating condition contributing
to more than one million bone fractures each year in the United States. Estrogen
replacement therapy can effectively treat menopausal symptoms, as well as reduce
bone loss with beneficial effects on the prevention of osteoporosis. It is
estimated that there are more than 90 million menopausal or postmenopausal women
in the United States and Europe, and this number is anticipated to increase
during the next decade. In 1996, worldwide sales for female hormone replacement
therapy products exceeded $2.3 billion.

        The current market for estrogen in the United States is dominated by
oral products which require significantly larger doses of estrogen to produce
the desired effects relative to transdermal estradiol administration. Further,
unopposed estrogen administration can lead to pre-cancerous uterine conditions
in many women unless counterbalanced by the co-administration of a progestin. As
with estrogen replacement, progestin therapy is currently dominated by oral
products which require higher levels of progestin hormones. Transdermal female
hormone replacement patch development is an active field with several companies
developing estradiol patches and estradiol/progestin combination patches. In the
United States, three other estradiol matrix patches offered by competitors of
the Company have also received FDA approval. The Company believes that its
products may provide improved performance and better skin toleration than
competitive transdermal estradiol products.

        An exciting new product in the female HRT area is a MTX transdermal
patch that delivers testosterone to women. Although women produce only about one
twentieth the amount of testosterone produced by men, it is believed to have an
important role in the normal hormonal balance of healthy women. The potential
consequences of testosterone deficiency in women, including loss of libido and
muscle and bone deterioration, are becoming more recognized by the medical
community, offering TheraTech new opportunities in the female HRT market. The
issuance in October 1995 of a United States patent on this transdermal
technology solidified TheraTech's leadership position in this rapidly evolving
area.

        TheraTech has conducted Phase II clinical trials for two separate
indications on its female testosterone patch. The first study was conducted at
the Massachusetts General Hospital, to evaluate the effects of the patch on
wasting in HIV infected women who are testosterone deficient. This trial was
completed in 1997, with results showing an increase in body mass at
physiological dosing with testosterone. The second study evaluates the effects
of low testosterone levels on sexual function, mood and quality of life in women
who have had their ovaries removed. The effects of testosterone replacement on
bone turnover markers will also be evaluated. The latter study is being
conducted at several medical centers in the United States, and is anticipated to
be completed by the end of 1998.

  Nitroglycerin Transdermal System for the Treatment of Angina

        TheraTech has developed an enhanced transdermal nitroglycerin patch for
the treatment of angina, a painful attack due to insufficient oxygen in the
muscles of the heart. TheraTech's system utilizes proprietary enhancer
technology allowing equivalent dose administration from smaller patches than the
currently marketed originator products. Utilizing a TheraDerm-MTX patch design,
this product was developed as a generic bioequivalent product against Ciba
Geigy's (now Novartis AG) ("Novartis") Transderm-Nitro(R) product and in 1993 an
ANDA was submitted to the FDA. The FDA has listed both Schering Plough's
Nitro-Dur(R) and Novartis' Transderm-Nitro(R) as suitable reference standard
products for bioequivalence comparisons; allowing generic substitution of
TheraTech's product against Transderm-Nitro pending final ANDA approval. In
Europe, marketing applications based on TheraTech's bioequivalency study against
the Transderm-Nitro product were submitted and approved in several countries and
TheraTech's product is being marketed by Lavipharm S.A. ("Lavipharm") and its
distributors in France, Greece, Holland and Italy.



                                       8
<PAGE>   9

        TheraTech entered into development and license agreements with
Lavipharm, a privately-held European company with sales of approximately $200
million in 1997, pursuant to which TheraTech has received development payments
and is receiving royalties in exchange for granting Lavipharm exclusive
worldwide (excluding South Korea) marketing rights for this product. Lavipharm
has licensed the product to various distributors for sales in Europe and Canada.
TheraTech retains exclusive manufacturing rights for the United States, but has
granted exclusive manufacturing rights to Lavipharm with respect to the rest of
the world, except South Korea. TheraTech has entered into a technical license
agreement with Samyang pursuant to which TheraTech will receive certain license
fees and royalties in exchange for granting Samyang the exclusive right to
manufacture and market the product in South Korea.

        Approximately four million people in the United States suffer from
angina. Nitrate therapy is a leading method of treatment of angina. Total United
States annual sales of nitroglycerin patches at the manufacturer's level are
approximately $250 million, and worldwide annual sales of nitroglycerin patches
are approximately $500 million.

  Oral and OTM Drug Delivery

        The Company continues to make significant progress in the oral
controlled release and OTM drug delivery areas. TheraTech has a small scale,
solid dosage form pilot plant for the development and manufacturing of oral
controlled release tablets, self adherent OTM systems and long acting lozenges,
in accordance with current Good Manufacturing Practice ("cGMP"). This facility
is being used to support clinical supplies manufacturing and is capable of
biobatch production runs.

        The Company made particular progress in the transmucosal delivery of
macromolecules. Such drugs include peptide and carbohydrate based compounds
which are the focus of many biotechnology based drug discovery programs within
the industry. Such compounds are inherently difficult to administer using
conventional drug delivery technologies and typically must be administered by
injection.

        A major technological milestone was reached with a successful clinical
feasibility study using TheraTech's proprietary OTM system for peptide delivery.
In this study, TheraTech's proprietary OTM system administered pharmacologically
active amounts of GLP-1, which works primarily by stimulating the release of
insulin while inhibiting gastric emptying, thus lowering blood glucose. The
ability of GLP-1 to stimulate insulin secretion is accomplished in a blood
glucose-dependent fashion with minimal effects when blood glucose levels are
normal or low. GLP-1 may, thereby, offer an inherent safety advantage over
conventional drugs for the treatment of Type-II diabetes.

        TheraTech's successful GLP-1 clinical trials demonstrate the viability
of the Company's proprietary OTM technology for the non-invasive administration
of peptide drugs. Most peptide drugs cannot be administered orally because of
their susceptibility to enzymatic digestion in the gastrointestinal tract and
their large molecular size. GLP-1, for example, is a 30 amino acid peptide with
a molecular weight of approximately 3,300.

        TheraTech is in discussions with several pharmaceutical companies
regarding the development of peptides using OTM technology. The first
development agreement in this area was signed in January 1997 with Lilly. This
agreement encompasses a multiple-product development and marketing collaboration
program. The products under this agreement will utilize the OTM technology for
the delivery of several Lilly peptide drugs, primarily in the endocrine area.
Within Lilly's development program, these peptide drugs are at various stages of
preclinical and clinical development. The first Lilly peptide drug incorporating
OTM tablet technology is currently in development at TheraTech.

  Pfizer New Chemical Entity Transdermal Products

        TheraTech has had a broad, long-standing agreement with Pfizer, that was
recently renewed, to evaluate and develop transdermal patches for selected new
chemical entities under development at Pfizer. Under this agreement, TheraTech
is screening a selected number of compounds and developing prototype patches for
clinical studies on those compounds satisfying transdermal drug delivery
requirements. Based on Phase I results, further development activities would be
subsequently negotiated.

  Nicotine Products for Smoking Cessation

        Although TheraTech is developing a nicotine transdermal patch for
smoking cessation therapy for Lavipharm, the Company and Lavipharm are not
currently allocating substantial resources to this product. TheraTech has
licensed the nicotine transdermal patch to Samyang, who is actively developing
the product for South Korea. Additionally, the Company developed a nicotine
lozenge for smoking cessation and initiated Phase I clinical trials on this
product, and subsequently licensed this OTM nicotine product to SmithKline
Beecham Consumer Healthcare in early 1998.


                                       9
<PAGE>   10

  Anti-Wrinkle Patch

        Natrapac, Inc., TheraTech's wholly-owned consumer products subsidiary,
in late 1997 granted a worldwide marketing license for an anti-wrinkle dermal
patch to University Medical Products, USA, Inc. ("University Medical").
University Medical launched this product in the United States in January 1998.
This product, marketed under the trade name Face Lift(TM) - Vitamin C
Anti-Wrinkle Patch(TM), is a cosmetic product containing anti-oxidants for
treatment of fine wrinkles around the eyes and mouth and uses TheraTech's MTX
technology.

RISK FACTORS

        The statements contained in this Report on Form 10-K that are not purely
historical are "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. All forward looking statements involve various
risks and uncertainties. Forward looking statements contained in this Report
include statements regarding the Company's future product development and
commercialization, market opportunities and acceptance, United States and
foreign regulatory approval, expectations, goals, product sales and other
revenues, financial performance, strategies, mission and intentions for the
future. Such forward looking statements are included under Item 1. "Business"
and Item 7. "Management's Discussion and Analysis of Financial Condition and
Results of Operations." All forward looking statements included in this Report
are made as of the date hereof, based on information available to TheraTech as
of such date, and the Company assumes no obligation to update any forward
looking statement. It is important to note that such statements may not prove to
be accurate and that the Company's actual results and future events could differ
materially from those anticipated in such statements. Among the factors that
could cause actual results to differ materially from the Company's expectations
are those described below and elsewhere in this Report. These factors also
affect the Company's earnings and stock price. All subsequent written and oral
forward looking statements attributable to the Company or persons acting on its
behalf are expressly qualified in their entirety by this section and other
factors included elsewhere in this Report.

  Early Stage of the Company and its Products; Technological Uncertainty

        TheraTech was founded in January 1985 and its revenues to date have
consisted principally of research fees, licensing fees, milestone payments and
other payments from other entities under collaborative research and other
agreements, as well as and more recently revenues from sales of TheraTech's
products. These include the testosterone product in the United States and
Europe, the estradial patch in the United States and royalties from Lavipharm
for sales of the nitroglycerin product in Europe. During the year ended December
31, 1997, revenue from product sales accounted for approximately 39 percent of
the Company's total revenues, with a majority of the product sales coming from
SmithKline Beecham and Procter & Gamble. The loss of either of these customers
would have a material adverse result on the Company's business, financial
condition and results of operations. To achieve significant revenues and
profitable operations on a continuing basis, the Company and its partners must
successfully develop, manufacture, and license or market additional products.
The Company's four marketed products are at an early stage of commercialization
and many of the Company's drug delivery products and technologies are at various
stages of research and development. The time necessary to achieve market success
for any individual product is long and uncertain. No assurance can be given that
the Company's product development efforts will be successfully completed, that
required regulatory approvals can be obtained, that products under development
can be manufactured at acceptable cost and with appropriate quality or that any
approved products can be successfully licensed or marketed. In addition, there
can be no assurance that the drug development and marketing efforts of TheraTech
or its partners will be successful.

  Competition

        Competition for the development of drug delivery products is intense and
expected to increase. TheraTech's competitors include Alza Corporation, Cygnus
Therapeutic Systems, Elan Corporation ("Elan"), Ethical Pharmaceuticals, Ltd.,
Inhale Therapeutic Systems, Novartis, Noven Pharmaceuticals Inc, Schering
Plough, 3-M Pharmaceuticals and others. Some of these companies have
substantially greater financial resources and larger research and development
staffs than TheraTech, as well as substantially greater experience in developing
products, in obtaining regulatory approvals and in manufacturing and marketing
pharmaceutical products. Competition with these companies involves not only
product development, but also acquisition of products and technologies from
universities and other research institutions. TheraTech also competes with
pharmaceutical companies, universities and other institutions in the development
of products, technologies and processes that are, or in the future may be, the
basis for competitive products. There can be no assurance that the Company will
successfully develop technologies and products that are more effective or
affordable than those being developed by its competitors. In addition, one or
more of the Company's competitors may achieve product commercialization or
obtain patent protection earlier than TheraTech. Competitive products have
either been approved or 



                                       10
<PAGE>   11

are being developed for most of TheraTech's products. The first pharmaceutical
product to reach the market in a therapeutic area often has a significant
competitive advantage relative to later entrants to the market.

        TheraTech expects that its products will compete primarily on the basis
of product efficacy, safety, patient convenience, reliability, price and scope
of patent rights. The Company's competitive position will also depend on its
ability to attract and retain qualified scientific and other personnel, develop
effective proprietary products, implement production and marketing plans, obtain
patent protection and secure adequate capital resources. There can be no
assurance that future competitive forces will not have a material adverse effect
on the Company's business, financial condition or results of operations.

  Manufacturing and Supply

        TheraTech transdermal patches are manufactured using several proprietary
materials and production technologies developed by TheraTech in conjunction with
equipment and material suppliers. TheraTech has a 63,000 square foot
multi-product cGMP commercial manufacturing facility. When fully equipped, this
facility will be capable of producing up to approximately 140 million LRS
patches and 100 million MTX patches annually. The LRS and MTX portions of the
facility have been validated and have undergone Pre-Approval Inspections ("PAI")
by the FDA. TheraTech believes it has sufficient capacity to support the initial
United States and worldwide marketing of its approved transdermal products.
Further product growth may require TheraTech to expand this facility or obtain a
second manufacturing facility. The Company has installed the equipment necessary
for current LRS and MTX production capability and plans to install additional
production equipment to attain full capacity. Currently, the facility is
producing the required commercial quantities of testosterone transdermal
systems, estradiol transdermal systems and anti-wrinkle dermal patches for
distribution.

        In addition, TheraTech has two pilot production facilities which
continue to supply TheraTech's transdermal patch developmental requirements and
are capable of producing biobatch lots. TheraTech also manufactures its OTM,
lozenge and controlled release oral dosage forms for development purposes in its
separate solid dosage form pilot manufacturing facility under cGMP practices.
TheraTech performs quality control testing in-house for each aspect of the
manufacturing process, from raw material studies to final product
characterization. There can be no assurance, however, that the Company will not
encounter manufacturing difficulties with respect to its existing and future
products that could have a material adverse effect on the Company's business,
financial condition or results of operations.

        Several materials used in the manufacture of the Company's products are
available only from sole source suppliers. These items have generally been
available to TheraTech and the pharmaceutical industry on commercially
reasonable terms. TheraTech has not experienced undue difficulty acquiring
materials necessary to manufacture clinical quantities of its products.
TheraTech intends to negotiate supply contracts, as appropriate, for its
products and has already entered into contracts on certain materials for its
Androderm production. Any interruption of supply could have a material adverse
effect on the Company's business, financial condition and results of operations.

  Marketing and Sales

        TheraTech is developing several drug delivery products under research
and development, and marketing and distribution agreements pursuant to which the
other contracting parties are responsible for marketing activities. Although
TheraTech believes that its collaborative partners intend to commercialize the
products which they license from the Company, the level of resources and
attention devoted by the collaborative partner to a product is not within the
Company's control.

        Collaborative partners are generally responsible for marketing and
distribution activities. Product sales forecasts provided by collaborative
partners are used by TheraTech for production scheduling. Significant changes in
sales forecasts may cause substantial changes in the Company's production and
future product sales. TheraTech's product sales are subject to many variables,
including: the collaborative partners' ability to identify the market; market
acceptance of the product; inventory levels held in the distribution network and
marketing efforts by collaborative partners. As a result, TheraTech's
production, and the resulting product sales, are dependent upon the
collaborative partners marketing and sales efforts. There can be no assurance
with respect to the market acceptance of the Company's products or the
anticipated sales growth of such products.

        Certain of TheraTech's products may be directed toward markets and
indications whose potential has not been fully developed. New products and
technologies could expand the size of a market due to the limitations of
existing therapies. This may require extensive education of physicians and
potential new patients. Physicians may require assistance in understanding the
benefits of these new products and overcoming objections to long-standing ideas
on treatments. Patients may not be aware of their symptoms, or that the symptoms
they are experiencing are signs of a medical condition that now 



                                       11
<PAGE>   12

has treatments available. As a result, the growth of product sales may be
significantly dependent upon this educational process.

        TheraTech generally has retained manufacturing rights and intends to
manufacture most of its products under development, but may also choose to
license certain manufacturing rights, as appropriate. TheraTech is also
developing several products independently. Initially, the Company intended to
license most of these independently developed products for sale through
pharmaceutical companies. However, TheraTech's long-term objective is to market
some of its independently developed products through an internal marketing and
sales force. The Company will initially focus on selected market segments
expected to provide optimum return on the sale of its products. In the event
significant sales of products are not achieved or sustained, whether through
marketing partners or the Company's own sales efforts, the Company's business,
financial condition and results of operations would be materially adversely
affected.

  Patents and Proprietary Technology

        TheraTech's policy is to file patent applications in appropriate
situations to protect and preserve, for its own use, technology, inventions and
improvements that it considers important to the development of its business. The
Company seeks patent protection for its proprietary technologies and products as
it believes is appropriate in the United States, Canada, Australia, key European
and Asian countries and other countries. The Company also relies on trade
secrets, know-how, continuing technological innovations and licensing
opportunities to develop and maintain its competitive position.

        TheraTech's success will depend, in part, on its ability to obtain or
license patents, protect trade secrets and operate without infringing the
proprietary rights of others. The Company has a number of patents and patent
applications. There can be no assurance, however, that existing patent
applications will mature into issued patents, that the Company will be able to
obtain additional licenses to patents of others or that the Company will be able
to develop its own additional patentable technologies. In addition, there can be
no assurance that any patents issued to the Company will provide it with
competitive advantages or will not be challenged by others or, if challenged,
will be held valid, or that the patents of others will not have a material
adverse effect on the Company's business, financial condition and results of
operations. Furthermore, there can be no assurance that others will not
independently develop similar products, or if patents are issued to the Company,
will not design around such patents.

        TheraTech currently holds 31 issued and allowed United States patents
and an additional 19 pending United States patent applications. Corresponding
patents or applications have been issued or filed in Canada, Australia and key
European and Asian countries, including Japan. These international filings are
in various stages of prosecution, some having been issued as patents, with
others being allowed or pending. TheraTech currently is not aware of any claims
of infringement against its products or technologies, except its nicotine
TheraDerm-MTX system may infringe patents issued to Elan and other companies. In
late 1997, the Company obtained a sublicense to certain patents issued to the
University of Southern California to avoid any potential infringement of its
estradial/testosterone patch. There can be no assurance that claims will not be
made against TheraTech or that TheraTech will not be precluded from marketing
certain of its products in the United States or elsewhere.

        In addition to the sublicense described above, TheraTech may in the
future be required to obtain licenses to patents or other proprietary rights of
others. No assurance can be given that any licenses required under any such
patents or proprietary rights would be made available on terms acceptable to the
Company, if at all. If TheraTech does not obtain such licenses, it could
encounter delays in product market introductions while it attempts to design
around such patents, or could find that the development, manufacture or sale of
products requiring such licenses could be foreclosed. In addition, the Company
could experience a loss of revenue, as well as incur substantial costs, in
defending itself and potentially indemnifying its partners in suits involving
such patents or proprietary rights. Further, there can be no assurance that any
patent obtained or licensed by TheraTech will be held valid and enforceable if
asserted by TheraTech against another party.

        TheraTech generally requires each of its employees, consultants and
advisors to execute a confidentiality and assignment of proprietary rights
agreement upon the commencement of employment or consulting relationship with
the Company. The agreements generally provide that all inventions, ideas,
discoveries, improvements, and copyrightable material made or conceived by the
individual arising out of the employment or consulting relationship and all
confidential information developed or made known to the individual during the
term of the relationship shall be the exclusive property of the Company. This
information shall be kept confidential and not disclosed to third parties except
in specified circumstances. The confidentiality agreements generally also
contain a covenant not to compete for twelve months and a prohibition against
disclosure of confidential information for a period of five years after
termination of the relationship. There can be no assurance, however, that these
agreements will provide meaningful protection for the Company's proprietary
information in the event of unauthorized use or disclosure of such information.



                                       12
<PAGE>   13

  Government Regulation and Product Approvals

        The production and marketing of the Company's products and its research
and development activities are subject to regulation by numerous governmental
authorities in the United States and other countries. In the United States,
pharmaceutical products are subject to the Federal Food, Drug & Cosmetic Act,
the Public Health Services Act, and other federal statutes and regulations.
These regulations and statutes influence the testing, manufacture, labeling,
storage, record keeping, advertising, promotion 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.

        In order to obtain FDA approval of a new product, the Company must
submit proof of safety, efficacy and stability, and validate its manufacturing
processes. These efforts can entail extensive preclinical, clinical and
laboratory testing in order to prepare the necessary application for FDA
approval. 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 or technologies, delays imposed by the governmental approval
process may materially reduce the period during which the Company will have the
exclusive right to exploit them.

        The FDA approval process for a new pharmaceutical product includes: (i)
preclinical laboratory and animal studies to enable FDA approval of an
Investigational New Drug ("IND") application; (ii) initial IND clinical studies
to define safety and dose parameters; (iii) well-controlled IND clinical trials
to demonstrate product efficacy and safety in the target population ("pivotal
trials"); and, (iv) submission and FDA approval of an NDA. Preclinical studies
involve laboratory evaluation of product characteristics and animal studies to
assess the efficacy and safety of the product. 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 volunteers for safety and pharmacokinetic parameters using single and
multiple dosing regimens. In Phase II, continued safety and initial efficacy of
the product is evaluated in a somewhat larger patient population for dose
ranging. Phase III trials typically involve additional testing for safety and
clinical efficacy using multiple dosage regimens 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. The FDA may order the temporary or permanent discontinuation of clinical
trials at any time.

        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. In responding to an NDA, the FDA
may grant marketing approval, require additional testing and/or information, or
deny the application. Continued compliance with all FDA requirements and the
conditions in an approved application, including product specification,
manufacturing process, labeling, promotional material, record keeping and
reporting requirements, is necessary throughout the life of the product. Failure
to comply, or the occurrence of unanticipated adverse effects during commercial
marketing, could lead to the need for product recall or other FDA-initiated
actions that could delay further marketing until the products or processes are
brought into compliance.

        The facilities of each pharmaceutical manufacturer must be registered
with and approved by the FDA. Continued registration requires compliance with
cGMP regulations. Manufacturers must also be registered with the Drug
Enforcement Administration ("DEA") and similar state and local regulatory
authorities if they handle controlled substances, and with the Environmental
Protection Agency ("EPA") and similar state and local regulatory authorities to
insure efficient emissions and control is maintained. Certain drugs used in
products being developed by the Company are controlled substances and are
subject to regulation by the DEA and state and local authorities. Each of these
organizations conduct periodic establishment inspections to confirm continued
compliance with its regulations. Failure to comply with any of these regulations
could result in fines, interruption of production and criminal prosecution.

        For international markets, a pharmaceutical company is subject to
regulatory requirements, interactions and product approvals substantially the
same as those in the United States. Although the technical details are
different, the trials are substantially the same as the Phase I, II and III
trial definitions in the United States regulations. For most of the Company's
development agreements, the collaborative partner is responsible for regulatory
interactions. However, the Company is responsible for part, or all, of the
regulatory interactions on its independently developed products and some of its
collaborative products. The time and cost required to obtain these international
market approvals may be more or less than that required for FDA approval.

        There can be no assurance that required approvals from the FDA or
foreign regulatory authorities will be obtained on a timely basis, if at all,
with respect to TheraTech's products currently under development. Furthermore,
future regulatory action, and government compliance measures could significantly
impact the Company's launched products and 



                                       13
<PAGE>   14

those under development and subject the Company to unexpected delays, costs and
expenses. Any failure or material delay in obtaining required regulatory
approvals or in satisfying applicable government regulations could affect
significantly the Company's future revenues and have a material adverse effect
on the Company's business, financial condition and results of operations.

  Product Liability Exposure; Limited Insurance

        The Company's business exposes it to potential product liability risks
which are inherent in the testing, manufacturing, marketing and sale of
therapeutic products. Product liability insurance for the pharmaceutical
industry generally is expensive, to the extent it is available at all. TheraTech
has product liability insurance, however, there can be no assurance that it will
be able to maintain such insurance on acceptable terms, that the Company will be
able to secure increased coverage as the commercialization of its products
increase or that the insurance will provide adequate protection against
potential liabilities. A successful claim brought against the Company in excess
of the Company's insurance coverage could have a material adverse effect on the
Company's business, financial condition and results of operations.

  Possible Limitations on Health Care Reimbursement

        TheraTech's ability to successfully commercialize its products may
depend in part on the extent to which reimbursement for the costs of such
products and related treatments will be available from government health
administration authorities, private health coverage insurers and other
organizations. Significant uncertainty exists as to the reimbursement status of
newly approved health care products, and there can be no assurance that adequate
third-party coverage will be available for the Company to maintain price levels
or volume sufficient to realize an appropriate return on its investment in
developing new drug delivery systems. Government and other third-party payors
are increasingly attempting to contain health care costs by limiting both
coverage and the level of reimbursement for new therapeutic products approved
for marketing and refusing, in some cases, to provide any coverage for
indications for which the FDA and other national health regulatory authorities
have not granted marketing approval. If adequate coverage and reimbursement
levels are not provided by government and third-party payors for uses of the
Company's products, market acceptance of these products could be materially
adversely affected.

EMPLOYEES

        As of February 28, 1998, TheraTech had 237 full time and 3 part-time
employees, of whom 29 hold Ph.D., Pharm.D. and/or M.D. degrees and 43 hold
master's degrees. Of the total number, 147 employees were engaged in research
and development activities, 60 employees were in manufacturing, and 33 employees
were in finance and administration.

        TheraTech's management team is composed of pharmaceutical industry
specialists, including individuals with experience ranging from project
conception and design to regulatory approval process and commercial production.

ITEM 2. PROPERTIES

        TheraTech's executive and principal facilities are located in Salt Lake
City, Utah. These facilities include approximately 76,000 square feet of
research and development, pilot manufacturing and packaging, and administrative
space under one lease. The lease expires in May 1999 and has two, one year
renewal options. TheraTech has also entered into a 40-year lease, with an option
to renew for an additional ten years, on approximately seven acres of land
located in the University of Utah Research Park for its commercial manufacturing
facility. TheraTech also maintains approximately 3,000 square feet of leased
space for business development and related purposes in Tokyo, Japan.

        Included in the Utah facilities, TheraTech currently has two pilot cGMP
transdermal manufacturing facilities and one pilot cGMP manufacturing facility
for oral products. These facilities utilize small scale production machines for
product development and clinical production activities. In addition, the Company
has installed similar machines, with modifications for higher throughput and
increased manufacturing, in its substantially larger, multi-product transdermal
manufacturing facility also located in Salt Lake City, Utah. This 63,000 square
foot building is owned by TheraTech and has been approved by the FDA for the
commercial production of Androderm and Alora. The manufacturing facility has
also been approved by the United Kingdom Medicines Control Agency for the
production of Andropatch and Alora.

ITEM 3. LEGAL PROCEEDINGS

        The Company is not a party to any litigation, other than legal and
arbitration proceedings which are believed to be ordinary or routine litigation
incidental to its business. There can be no assurance that the Company's pending
or future legal proceedings will not have a material adverse effect on the
Company's business, financial condition or results of operations.



                                       14
<PAGE>   15

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

        Not applicable.


                                               PART II

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

        TheraTech's common stock is traded on the Nasdaq National Market under
the Symbol: THRT. The quarterly high and low sales prices for the calendar years
1996 and 1997 as reported are shown below:

<TABLE>
<CAPTION>
                1996:                      HIGH            LOW
                                           ----            ---
<S>                <C>                    <C>              <C>   
                   First Quarter          $16.83           $10.42
                   Second Quarter          16.33            12.00
                   Third Quarter           14.00             8.38
                   Fourth Quarter          13.63             9.38

                1997:                      HIGH            LOW
                                           ----            ---
                   First Quarter          $14.75            $9.50
                   Second Quarter          12.25             7.50
                   Third Quarter           12.13             9.69
                   Fourth Quarter          12.13             7.00
</TABLE>


        As of December 31, 1997, there were approximately 243 stockholders of
record and approximately 5,100 beneficial owners of TheraTech stock. TheraTech
has never declared or paid cash dividends on its common stock and does not
anticipate paying cash dividends in the foreseeable future.

ITEM 6. SELECTED FINANCIAL DATA

        The information required by this item is included under "Selected
Consolidated Financial Data" in the Company's 1997 Annual Report to Stockholders
and is incorporated herein by reference.

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

        The information required by this item is included under "Management's
Discussion and Analysis of Financial Condition and Results of Operations" in the
Company's 1997 Annual Report to Stockholders and is incorporated herein by
reference.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

        Not applicable.


ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

        The information required by this item is included in the "Financial
Section" in the Company's 1997 Annual Report to Stockholders and is incorporated
herein by reference. Such information is listed under Item 14(a)1 of Part IV of
this Report.


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

        Not applicable.


                                       15
<PAGE>   16

                                    PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

        The information required by this item is included under "Election of
Directors," "The Board of Directors and Committees," "Executive Officers" and
"Other Matters" in the Company's Proxy Statement to be filed in connection with
its 1998 Annual Meeting of Stockholders and is incorporated herein by reference.

ITEM 11. EXECUTIVE COMPENSATION

        The information required by this item is included under "Executive
Compensation" in the Company's Proxy Statement to be filed in connection with
its 1998 Annual Meeting of Stockholders and is incorporated herein by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

        The information required by this item is included under "Security
Ownership of Certain Beneficial Owners and Management" in the Company's Proxy
Statement to be filed in connection with its 1998 Annual Meeting of Stockholders
and is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

        The information required by this item is included under "Certain
Relationships and Related Transactions" in the Company's Proxy Statement to be
filed in connection with its 1998 Annual Meeting of Stockholders and is
incorporated herein by reference.


                                       16
<PAGE>   17

                                     PART IV

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

(a) 1.   Financial Statements and Report of Independent Auditors.

         The following financial statements of the Company and Report of
         Independent Auditors are contained in the Company's 1997 Annual Report
         to Stockholders and are incorporated by reference in Item 8 of Part II
         of this Report on Form 10-K:

                  Consolidated Statements of Operations for the years ended
                  December 31, 1997, 1996 and 1995

                  Consolidated Balance Sheets as of December 31, 1997 and 1996

                  Consolidated Statements of Stockholders' Equity for the years
                  ended December 31, 1997, 1996 and 1995

                  Consolidated Statements of Cash Flows for the years ended
                  December 31, 1997, 1996 and 1995

                  Notes to Consolidated Financial Statements

                  Report of Independent Auditors

    2.   Financial Statement Schedules.

         The following financial statement schedules are filed as part of this
         Report on Form 10-K and are incorporated herein by reference:

         All schedules have been omitted because the information required to be
         set forth therein is not applicable or is shown in the financial
         statements or notes thereto.

    3.   Exhibits.

         The exhibits listed in the accompanying index to exhibits are filed or
         incorporated by reference as part of this Report on Form 10-K.

(b)      Reports on Form 8-K.

         No reports on Form 8-K were filed during the quarter ended
         December 31, 1997.

(c)      See Item 14(a)3 above.

(d)      See Item 14(a)2 above.


                                       17
<PAGE>   18

                                INDEX TO EXHIBITS
                                  (ITEM 14(C))


<TABLE>
<CAPTION>
NUMBER                               EXHIBITS
<S>      <C>

3.1      Restated Certificate of Incorporation of the Company. (1)

3.2      Amended Bylaws of the Company. (1)

3.3      Certificate of Amendment to Restated Certificate of Incorporation of
         the Company. (2)

4.1      Reference is made to Exhibits 3.1, 3.2 and 3.3.

4.2      Specimen Common Stock Certificate of the Company. (3)

10.18*   TheraTech, Inc. Amended and Restated 1992 Employees' Stock Option Plan.
         (4)

10.19*   TheraTech, Inc. Amended and Restated 1992 Directors' Stock Option Plan.

10.27*   TheraTech, Inc. Deferred Compensation Plan.

13.1     Certain portions of the TheraTech, Inc. 1997 Annual Report to
         Stockholders, which portions are incorporated by reference into Part II
         of this Report on Form 10-K.

21.1     Subsidiaries of the Company. (2)

23.1     Consent of Independent Auditors, Ernst & Young LLP.

27.1     Financial Data Schedule for the year ended December 31, 1997.

27.2     Restated Financial Data Schedule for the year ended December 31, 1996.
</TABLE>


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

(1)        Incorporated by reference to identically numbered Exhibit to the
           Company's Registration Statement on Form S-1 (Commission File No.
           33-55122), which became effective on December 17, 1992.

(2)        Incorporated by reference to identically numbered Exhibit to the
           Company's Annual Report on Form 10-K for the year ended December 31,
           1996.

(3)        Incorporated by reference to identically numbered Exhibit to the
           Company's Registration Statement of Form S-1 (Commission File No.
           33-46155), which became effective on March 13, 1992.

(4)        Incorporated by reference to the exhibit filed with the Company's
           Proxy Statement filed in connection with its 1996 Annual Meeting of
           Stockholders.

*          Management contracts or compensatory plans or arrangements.



                                       18
<PAGE>   19
                                   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 in Salt Lake City,
State of Utah, on the 30th day of March 1998.

                                        TheraTech, Inc.

                                        By: DINESH C. PATEL
                                            ------------------------------------
                                            Dinesh C. Patel, Ph.D.
                                            Chairman of the Board, President 
                                            and Chief Executive Officer


        Pursuant to the requirements of the Securities Exchange Act of 1934,
this report has been signed below by the following persons on behalf of the
registrant and in the capacities and as of the date indicated.

<TABLE>
<CAPTION>
              SIGNATURE                                 TITLE                                            DATE
              ---------                                 -----                                            ----
<S>                                      <C>                                                        <C>


DINESH C. PATEL                          Chairman of the Board, President and                       March 30, 1998
- ---------------------------------        Chief Executive Officer (Principal Executive Officer)
Dinesh C. Patel, Ph.D.                                                                        



ALEXANDER L. SEARL                       Senior Vice President and Chief Financial Officer          March 30, 1998
- ---------------------------------        (Principal Financial and Accounting Officer)
Alexander L. Searl                                                                   



WILLIAM I. HIGUCHI                       Director                                                   March 30, 1998
- ---------------------------------
William I. Higuchi, Ph.D.



GARY L. CROCKER                          Director                                                   March 30, 1998
- ---------------------------------
Gary L. Crocker



JAY J. PISIK                             Director                                                   March 30, 1998
- ---------------------------------
Jay J. Pisik



JAMES T. O'BRIEN                         Director                                                   March 30, 1998
- ---------------------------------
James T. O'Brien



BOYD J. POULSEN                          Director                                                   March 30, 1998
- ---------------------------------
Boyd J. Poulsen, Ph.D.



ROBERT K. DEVEER                         Director                                                   March 30, 1998
- ---------------------------------
Robert K. deVeer, Jr.

</TABLE>


                                       19
<PAGE>   20
                                INDEX TO EXHIBITS


<TABLE>
<CAPTION>
NUMBER                               EXHIBITS
<S>      <C>

3.1      Restated Certificate of Incorporation of the Company. (1)

3.2      Amended Bylaws of the Company. (1)

3.3      Certificate of Amendment to Restated Certificate of Incorporation of
         the Company. (2)

4.1      Reference is made to Exhibits 3.1, 3.2 and 3.3.

4.2      Specimen Common Stock Certificate of the Company. (3)

10.18*   TheraTech, Inc. Amended and Restated 1992 Employees' Stock Option Plan.
         (4)

10.19*   TheraTech, Inc. Amended and Restated 1992 Directors' Stock Option Plan.

10.27*   TheraTech, Inc. Deferred Compensation Plan.

13.1     Certain portions of the TheraTech, Inc. 1997 Annual Report to
         Stockholders, which portions are incorporated by reference into Part II
         of this Report on Form 10-K.

21.1     Subsidiaries of the Company. (2)

23.1     Consent of Independent Auditors, Ernst & Young LLP.

27.1     Financial Data Schedule for the year ended December 31, 1997.

27.2     Restated Financial Data Schedule for the year ended December 31, 1996.
</TABLE>

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

(1)      Incorporated by reference to identically numbered Exhibit to the
         Company's Registration Statement on Form S-1 (Commission File No.
         33-55122), which became effective on December 17, 1992.

(2)      Incorporated by reference to identically numbered Exhibit to the
         Company's Annual Report on Form 10-K for the year ended December 31,
         1996.

(3)      Incorporated by reference to identically numbered Exhibit to the
         Company's Registration Statement of Form S-1 (Commission File No.
         33-46155), which became effective on March 13, 1992.

(4)      Incorporated by reference to the exhibit filed with the Company's Proxy
         Statement filed in connection with its 1996 Annual Meeting of
         Stockholders.

  *      Management contracts or compensatory plans or arrangements.



<PAGE>   1
                                                                   EXHIBIT 10.19


                                 THERATECH, INC.
                              AMENDED AND RESTATED
                        1992 DIRECTORS' STOCK OPTION PLAN

    1.   Establishment, Purpose and Definitions.

    (a) There is hereby adopted the Amended and Restated 1992 Directors' Stock
Option Plan (the "Plan") of TheraTech, Inc., a Delaware corporation (the
"Company"). The Plan is intended to provide a means whereby directors of the
Company who are not officers or employees of the Company ("Non-Employee
Director"), as described in subparagraph 3(b) hereof ("Participants"), may be
given an opportunity to purchase shares of Stock (as defined in subparagraph
3(a) hereof) of the Company pursuant to options which are not intended to
qualify as incentive stock options under Section 422 of the Internal Revenue
Code as amended from time to time (the "Code").

    (b) The purpose of the Plan is to provide incentives to Participants for
increased efforts and successful achievements on behalf of or in the interests
of the Company while serving on the Company's Board of Directors (the "Board")
and to maximize the rewards due them for such increased efforts and successful
achievements. All share amounts of the Stock set forth in paragraph 3 reflect
the Company's 3 - for - 2 stock split effected June 28,1996.

    2.   Administration of the Plan.

    The Plan shall be administered by the Board.

    3.   Stock Subject to the Plan.

    (a) Stock shall mean the Common Stock of the Company or such stock as the
Common Stock may be changed as contemplated by paragraph 11 hereof. The maximum
number of shares of Stock which may be granted under the Plan shall be 277,500
shares, as adjusted pursuant to paragraph 11 hereof. If any option ceases to be
exercisable in whole or in part, the shares which were subject to such option
but as to which the option had not been exercised shall continue to be available
under the Plan.

    (b) An option to purchase 11,250 shares of Stock or such other number of
shares as the Board may determine shall be granted to each Non-Employee Director
elected or appointed to the Board upon the date each first becomes a
Non-Employee Director of the Company (the "Initial Grant"). Thereafter, during
each year that a Non-Employee Director continues to serve as a Director, such
Non-Employee Director shall be granted an option to purchase 8,000 shares of
Stock or such other number of shares as the Board may determine (the "Annual
Grant").

    4.   Eligibility.

    All Non-Employee Directors shall be eligible to receive grants of Stock
options as provided in subparagraph 3(b) hereof.

    5. Exercise Price for Options Granted under the Plan.

    The exercise price per share of Stock covered by each option shall be the
per share fair market value of the Stock on the date the option is granted
("Fair Market Value"). The exercise price of an option granted under the Plan
shall be subject to adjustment to the extent provided in paragraph 11 hereof.

                                      A-1

<PAGE>   2

    6.   Terms and Conditions of Options.

    (a) Each option granted pursuant to the Plan shall be evidenced by a written
stock option agreement executed by the Company and the person to whom such
option is granted, containing such terms, provisions and conditions as may be
determined by the Board and not inconsistent with the Plan.

    (b) Each Initial Grant option shall become exercisable as to one-third
thereof on the first, second and third anniversary of its grant date. Each
Annual Grant option shall be immediately exercisable. If a Participant ceases to
be a director of the Company, all options not then exercisable shall terminate.

    7.   Use of Proceeds.

    Cash proceeds realized from the sale of Stock pursuant to Stock issued under
the Plan shall constitute general funds of Company.

    8.   Transferability.

    No option to purchase Stock granted pursuant to the Plan shall be
transferable by the Participant other than (i) by will or by the laws of descent
and distribution; (ii) pursuant to a qualified domestic relations order (as
defined in the Code or Title I of the Employee Retirement Income Security Act of
1974, as amended, or the rules thereunder); or (iii) pursuant to approval by the
Board on the terms set forth below. The Board may, in its discretion, authorize
all or a portion of the options granted or to be granted to a Participant to be
transferred by such Participant to (i) the spouse, children or grandchildren of
the Participant ("Immediate Family Members"), (ii) a trust or trusts for the
exclusive benefit of such Immediate Family Members, or (iii) a partnership or
limited liability company in which such Immediate Family Members are the only
partners or members, provided that (x) there may be no consideration for any
such transfer, (y) the stock option agreement pursuant to which such options are
granted or an amendment thereto must be approved by the Board and must expressly
provide for transferability in a manner consistent with this paragraph 8, and
(z) subsequent transfers of transferred options shall be prohibited except those
in accordance with this paragraph 8. Following an authorized transfer, any such
options shall continue to be subject to the same terms and conditions as were
applicable immediately prior to such transfer, provided that for purposes of the
Plan the term "Participant" shall be deemed to include a permitted transferee,
as applicable. If a Participant ceases to be a director of the Company, any
options transferred in accordance with this paragraph 8 shall be exerciseable by
the permitted transferee only to the extent such options were exerciseable by
the original Participant at the time immediately prior to the Participant
ceasing to be a director, and all other terms and conditions of such options
shall be effective with respect to any permitted transferee to the same extent
such terms and conditions were applicable to the original Participant. All
options shall, subject to the terms of the Plan, during the Participant's
lifetime, be exerciseable only by the Participant or by a permitted transferee.
In the event an option or options are transferred by a Participant in the manner
provided herein, the Participant shall remain subject to any withholding taxes
for the amount of the income realized upon exercise of the options, and the
Company shall have no obligation to provide notice to the permitted transferee
of the termination of the option due to termination of the original
Participant's service as a director or the death, disability or retirement of
such original Participant. Further, the Company shall be under no obligation to
file a registration statement under the Securities Act of 1933, as amended, with
respect to the shares issuable upon exercise of any options that have been
transferred in the manner provided herein.

    9.   Payment Upon Exercise.

    Payment of the exercise price upon exercise of any option to purchase Stock
granted under the Plan shall be made in whole or in part with (i) cash, (ii)
Stock held by the Participant, (iii) notes, (iv) or such other valuable
consideration as the Board, in its discretion, determines and is consistent with
the Plan's purpose and applicable law. Any Stock used to exercise options to
purchase Stock shall be valued at its fair market value on the date of the
exercise of the option. Any notes used to exercise options shall be full
recourse, interest-bearing obligations containing such terms as the Board shall
determine.

                                      A-2

<PAGE>   3

    10.  Withholding Taxes.

    (a) Shares of Stock issued hereunder shall be delivered to a Participant
only upon payment by such person to the Company of the amount of any withholding
tax which may be imposed thereon under the provisions of the Code as then in
effect or any law of any other taxing jurisdiction requiring such withholding
tax.

    (b) The Board may, under such terms and conditions as it deems appropriate,
require a Participant to satisfy withholding tax obligations under this
paragraph 10 by having the Company withhold from the Stock to be issued to the
Participant shares of Stock having a fair market value equal to the amount of
the withholding tax required to be withheld.

    11. Merger or Consolidation; Corporate Transactions. If there should be any
change in a class of Stock subject to the Plan, through merger, consolidation,
reorganization, recapitalization, reincorporation, stock split, stock dividend
(in excess of two percent (2%) of the Company's outstanding capital stock) or
other change in the corporate structure of the Company, the Company shall make
appropriate adjustments in order to preserve, but not to increase, the benefits
to Participants, including adjustments in the number of shares and in the price
per share of outstanding option grants. Upon the dissolution or liquidation of
the Company, the Plan and the options issued hereunder shall terminate.

    In the event of any of the following transactions (a "Corporate
Transaction"):

    (a) a merger or acquisition in which the Company is not the surviving
entity, except for a transaction the principal purpose of which is to change the
state of the Company's incorporation, or

    (b) any reverse merger in which the Company is the surviving entity but in
which fifty percent (50%) or more of the Company's outstanding voting stock is
transferred to holders different from those who held the stock immediately prior
to such merger, outstanding options shall be assumed or equivalent options shall
be substituted by such successor corporation or a parent or subsidiary of such
successor corporation, unless such successor corporation does not agree to
assume the options or to substitute equivalent options, in which case in lieu of
such assumption or substitution, Participants shall have the right to exercise
their options as to all of the optioned Stock, including shares as to which
their options would not otherwise be exercisable. If any option becomes fully
exercisable in lieu of assumption or substitution in the event of a Corporate
Transaction, the Board shall notify Participants that such options shall be
fully exercisable for a period of fifteen (15) days from the date of such notice
and will terminate upon the expiration of such period.

    12. Amendment and Termination of the Plan.

    (a) Amendment. The Board, without further approval of the stockholders, may
amend the Plan at any time and from time to time in such respects as the Board
may deem advisable, subject to any stockholder or regulatory approval required
by law, and to any conditions established by the terms of such amendment.

    (b) Termination and Suspension. The Board, without further approval of the
stockholders, may at any time terminate or suspend the Plan. Any such
termination or suspension of the Plan shall not affect options already granted
hereunder and such options shall remain in full force and effect as if the Plan
had not been terminated or suspended. No option may be granted hereunder while
the Plan is suspended or after it is terminated.

    Rights and obligations under any option granted hereunder while the Plan is
in effect shall not be altered or impaired by suspension or termination of the
Plan, except with the consent of the Participant to whom the option was granted.
An option hereunder may be terminated by agreement between the Participant and
the Company and, in lieu of the terminated option, a new option may be granted
with an exercise price which may be higher or lower than the exercise price of
the terminated option.

                                      A-3

<PAGE>   4

    13.  Conditions Upon Issuance of Stock.

    Stock shall not be issued with respect to any option granted under the Plan
unless the exercise of such option and the issuance and delivery of such Stock
pursuant thereto shall comply with all relevant provisions of law, and the
requirements of any stock exchange upon which the Stock may then be listed, and
shall be further subject to the approval of counsel for the Company with respect
to such compliance. Inability of the Company to obtain authority from any
regulatory body having jurisdictional authority deemed by its counsel to be
necessary to the lawful issuance and sale of any Stock hereunder shall relieve
the Company of any liability in respect of the non-issuance or sale of such
Stock as to which such requisite authority shall not have been obtained.

    14.  Reservation of Shares.

    The Company, during the term of the Plan, will at all times reserve and keep
available a number of shares of Stock as shall be sufficient to satisfy the
requirements of the Plan.

                                      A-4

<PAGE>   1
                                                                   EXHIBIT 10.27


                                 THERATECH, INC.
                           DEFERRED COMPENSATION PLAN


    1.   Purpose

    The TheraTech, Inc. Deferred Compensation Plan, (the "Plan") is designed to
help you save for retirement. The Plan is "Non-Qualified," meaning it is not
qualified under Section 401 of the Internal Revenue Code. However the amounts
contributed to the Plan by you and your employer are not subject to federal and
state income tax until distributed from the Plan. Until distribution, the
contributions and any earnings are held in an irrevocable trust known as a
"rabbi trust" by an independent trustee, Fidelity Management Trust Company
("Fidelity"). The trust assets must remain subject to the employer's creditors
in the event of insolvency in order to avoid current income taxation. As used
herein, the term "you" refers to an eligible employee of TheraTech, Inc. as set
forth in paragraph 2 below.

    2.  Eligibility

    You are eligible to participate in the Plan if you are an employee of
TheraTech, Inc. specifically designated to participate in the Plan, and you make
at least an 8.5% deferral into the TheraTech, Inc. 401(k) Savings Plan and Trust
("401(k) Plan").

    3.  Contributions

    (a) Employee Deferral Contributions. Subject to your Salary Deferral
Agreement, you may defer up to 50% of your eligible compensation and up to 100%
of your bonus. Your deferral election will remain in effect until a new one is
made. Any new election will not be effective until the first day of the
following plan year.

    (b) Employer Matching Contributions. The employer will make a matching
contribution to this Plan in an amount up to 75% of your deferral contributions
to this Plan and the 401(k) Plan. Deferral contributions in excess of 8.5% of
eligible compensation shall not be matched by the employer. The matching
contribution to this Plan will be reduced by the amount of matching
contributions made to the 401(k) Plan.

    (c) Eligible Compensation. Your eligible compensation is equal to your total
compensation excluding the value of an incentive or a non-qualified stock
option.


<PAGE>   2



    4.  Investments

    (a) You may invest among the following funds managed by Fidelity
Investments:

        Fidelity Retirement Money Market Portfolio
        Fidelity Puritan Fund
        Fidelity Equity Income Fund
        Fidelity Growth & Income Portfolio
        Fidelity Contrafund
        Fidelity Low-Priced Stock Fund
        Fidelity Freedom Funds
        Fidelity U.S. Bond Index Fund
        Spartan U.S. Equity Index Fund
        Fidelity Diversified International Fund

    (b) You may redirect your future contributions simply by calling the
toll-free number provided by Fidelity. You may also call the same number to make
exchanges among the Plan's investment options. You may contact a Fidelity
telephone representative between 8:30 AM (ET) and 8:00 PM (ET) on any business
day. Exchanges requested before 4:00 PM (ET) will be posted that business day
based upon the closing price of the affected mutual fund(s). Exchanges requested
after 4:00 PM (ET) will be processed on the next business day. The minimum
exchange is the lesser of $250 or 100% of your account balance in the mutual
fund. If your exchange is less than $250 then it may only be exchanged into one
mutual fund.

    (c) You may contact a Fidelity representative at 1-800-544-8888 to obtain a
prospectus or information about a mutual fund. To protect its shareholders, each
fund reserves the right to modify its exchange privileges as outlined in the
fund prospectus with sixty days written notice.

    5.   Vesting

    (a) The term "vesting" refers to your right to the contributions in your
account. You are always 100% vested in your employee contributions.

    (b) Employer matching contributions will be vested in accordance with the
following schedule:

<TABLE>
<CAPTION>
          Years of Service for Vesting                Percentages
<S>                <C>                                <C>
                   less than 2                              0
                       2                                   25
                       3                                   50
                       4                                   75
                       5                                  100
</TABLE>

<PAGE>   3
    6.  Access To Your Money

    (a) The Plan allows you to take a lump sum payout upon the distribution date
you elect on your Salary Deferral Agreement. The distribution dates are (1)
attainment of the Plan's Normal Retirement Age (age 59 1/2), (2) termination of
employment or (3) a designated date no sooner than one year from the following
January 1st. This election applies to your entire account balance. You will have
the right to change your election as long as the new election is executed no
later than 12 months before the earlier of (1) the date such new election is to
be effective or (2) the date payments would otherwise commence.

    (b) You may request a hardship withdrawal prior to termination of your
employment, if you qualify, subject to a $1,000 minimum.

    7.   Statement Schedule

    You will receive a statement four times a year within 20 days after February
28, May 31, August 31, and October 31 disclosing the value of your account
balances.

    8.   Incorporation By Reference

    The Plan is governed by the terms and conditions set forth in the Plan
Adoption Agreement dated November 17, 1997 and the Service Agreement between
TheraTech, Inc. and Fidelity Management Trust Company, which terms and
conditions are incorporated herein by this reference. Contributions to the Plan
are also governed by your Salary Deferral Agreement, a form of which is attached
hereto.



<PAGE>   4

                                 THERATECH, INC.
                    THERATECH, INC DEFERRED COMPENSATION PLAN
                            SALARY DEFERRAL AGREEMENT
                                    FOR 1998

    As an executive of TheraTech, Inc, you have the opportunity to participate
in the TheraTech, Inc Deferred Compensation Plan (the Supplemental Plan). The
Plan is provided to you as a supplement to the TheraTech, Inc. 401(k) Savings
Plan and Trust (the 401(k) Plan). Due to regulatory limitations, you may not be
able to make deferrals into 401(K) Plan to the extent you desire. Also, for some
income levels, you could lose a portion of the Company Contribution. The
Supplemental Plan supplements those benefits limited under the 401(K) plan. To
participate in the Supplemental Plan you must make at least an 8.5% contribution
to the 401(K) plan. The IRS deferral limit for 1998 is $10,000.

    Below you have the opportunity to make three deferral elections:
Supplemental Plan I, Supplemental Plan II and a special Supplemental Plan II for
any bonus check. The Supplemental Plan I deferrals begin when and if you reach
the IRS deferral limit in the 401(K) plan and continue for the remainder of the
year. Supplemental Plan II deferrals begin immediately and run the entire year.
The special Supplemental Plan II deferral for any bonus check allows you to
defer a larger portion of your bonus check and applies only to your bonus check.
Your total deferral percentage for both Supplemental Plan I and Supplemental
Plan II cannot exceed 50% of pay. Your total deferral percentage for the special
Supplemental Plan II for bonus checks can equal up to 100% of your bonus. YOUR
SUPPLEMENTAL PLAN I ELECTION MUST BE AT THE SAME PERCENTAGE LEVEL YOU CHOOSE FOR
YOUR TAX-DEFERRED 401(K) PLAN CONTRIBUTION. This will maintain a constant cash
flow level in your paycheck should you reach the IRS deferral limit for 401(K)
plan.

    This is your Supplemental Plan deferral agreement. IT IS IMPORTANT THAT YOU
COMPLETE IT, EVEN IF YOU CHOOSE NOT TO PARTICIPATE. This agreement may be
executed in one or more counterparts, each of which is legally binding and
enforceable. This agreement is qualified by the terms and conditions of the
actual Supplemental Plan document whose provisions are incorporated herein by
reference.


                      SUPPLEMENTAL PLAN I DEFERRAL ELECTION
     (NOTE: Must be at least 8.5% and equal to your 401(K) PLAN percentage.
               This deferral begins when the IRS maximum deferral
                        limit is reached in 401(K) PLAN.)

Check one below:

    ( ) I elect to participate in the plan from January 1, 1998 to December
        31, 1998. I wish to make a Supplemental Plan I deferral in an amount
        equal to ____% of my pay for 1998. Remember, these deferrals will begin
        after the tax-deferred -------- limit in 401(K) PLAN has been reached.

    ( ) I do not want to participate in the plan at this time. I understand
        that by making this election, I will not be able to participate in this
        plan for 1998, but that I can elect to participate in future years, if
        eligible, by filing a new Supplemental Plan agreement. (Please be sure
        to turn to the last page and sign.)


<PAGE>   5

               SUPPLEMENTAL PLAN II DEFERRAL ELECTION - (OPTIONAL)
         (NOTE: This deferral begins with your first paycheck in January
                         and continues the entire year.)

    IF YOU MADE A SUPPLEMENTAL PLAN I ELECTION ABOVE, you have the option of
making a Supplemental Plan II election up to 41.5% of your pay. However, your
combined Supplemental Plan I and Supplemental Plan II election cannot exceed
50%.

    ( ) I wish to make a Supplemental Plan II deferral in an amount equal to
        _____% of my TOTAL pay for 1998.

    SPECIAL SUPPLEMENTAL PLAN II DEFERRAL ELECTION FOR 1998 BONUS (OPTIONAL)

    If you made a Supplemental Plan I election above, you also have the option
of specifying a separate Supplemental Plan II deferral percentage for your bonus
check, if applicable. For example, this allows you to defer a higher or lower
percent of your bonus check than you elected for your regular pay. IF YOU DO NOT
MAKE THIS ELECTION, NONE OF YOUR 1998 BONUS CHECK WILL BE DEFERRED INTO THE
PLAN.

    ( ) I wish to make a Special Supplemental Plan II deferral election for my
        1998 bonus check in an amount equal to _____% of pay.


                              DISTRIBUTION ELECTION

    If you elect to participate, you must elect when you wish your entire
account balance to be paid to you with respect to deferrals and Company
contributions. This election must be made at this time. You will have the right
to change your election at a later time as long as that change is executed no
later that 12 months before the earlier of (i) the date such modification or
variation is to be effective or (ii) the date payments would otherwise commence
under the previous election.

(a) ______ Attainment of Normal Retirement Age. Normal Retirement Age under the
    plan is 59-1/2.

(b) ______ Termination of employment with the Employer.

(c) ______ A lump sum payment on _____________ (no sooner that 1 year from next
    January 1).



<PAGE>   6

                               INVESTMENT ELECTION

    I hereby elect the following as the investments in which my account shall be
treated as invested: (Indicate a whole percentage for each fund. The total must
equal 100%.)

<TABLE>
<CAPTION>
Fund Name                                     Percentage
<S>                                           <C>
Fidelity Retirement Money Market Portfolio             %
(0630)                                        ---------
Fidelity U.S. Bond Index Portfolio(0651)               %
                                              ---------
Fidelity Puritan Fund (0004)                           %
                                              ---------
Fidelity Equity Income Fund (0023)                     %
                                              ---------
Spartan U.S. Equity Index Fund (0650)                  %
                                              ---------
Fidelity Growth & Income Fund                          %
                                              ---------
Fidelity Contrafund (0022)                             %
                                              ---------
Fidelity Low-Priced Stock Fund (0316)                  %
                                              ---------
Fidelity Diversified International Fund                %
                                              ---------
Fidelity Freedom 2000 Fund (0370)                      %
                                              ---------
Fidelity Freedom 2010 Fund (0371)                      %
                                              ---------
Fidelity Freedom 2020 Fund (0372)                      %
                                              ---------
Fidelity Freedom 2030 Fund (0373)                      %
                                              ---------
Fidelity Freedom Income Fund (0369)                    %
                                              ---------
        Total                                     100%
</TABLE>


                              BENEFICIARY ELECTION

    In the event of my death before fulfillment of my account has been made to
me, I designate the following beneficiaries for this Supplemental Plan.

Primary Beneficiary                         Name
                                            ------------------------------------
                                            Address
                                            ------------------------------------


Secondary Beneficiary                       Name
                                            ------------------------------------
                                            Address
                                            ------------------------------------


    I understand that benefits will be paid to my Primary Beneficiary if my
Primary Beneficiary survives me by at least 30 days. Benefits will be paid to my
estate if neither the Primary Beneficiary nor the Secondary Beneficiary survives
me by at least 30 days. I have the right to change my designation of
beneficiaries from time to time by submitting a new form (in writing) to the
Secretary of TheraTech, Inc. or his representative. I agree that no change in
Beneficiary shall be effective until I receive an acknowledgement from the
Secretary of TheraTech, Inc. or his representative. This written acknowledgement
should be sent to me at the address below:

Name
          ------------------------------------
Address
          ------------------------------------

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

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


<PAGE>   7

                                   SIGNATURES

    By signing this agreement I acknowledge that neither the Company nor any of
its employees or agents has any responsibility whatsoever for any elections I
make in other personal plans or programs as a result of my decision regarding
the Supplemental Plan and they are fully released to such extent.

    All other terms of this deferral agreement shall be governed by the
TheraTech, Inc. Deferred Compensation Plan (and any amendments) which is in
effect at the time of this election. All other terms and conditions of that plan
are incorporated by reference herein.

    In witness whereof, the Company and I have executed this Deferral Agreement
for the period beginning January 1, 1998.

EXECUTIVE:                              THERATECH, INC.:

- -------------------------------         ----------------------------------------
Signature                               Signature


- -------------------------------         ----------------------------------------
Type or Print Name                      Type or Print Name


- -------------------------------         ----------------------------------------
Date                                    Date



<PAGE>   1
                                 THERATECH, INC.                    EXHIBIT 13.1

                             ----------------------
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS

GENERAL

Since its inception in January 1985, TheraTech has devoted substantially all of
its resources to drug delivery research and development programs. TheraTech
develops advanced, controlled release and other drug delivery products which
administer drugs through the skin, by oral delivery to the gastrointestinal
tract, through tissues in the oral cavity, through absorption in the lungs and
by other means. TheraTech product development activities have been conducted
independently or pursuant to collaborative research and development agreements
generally with pharmaceutical companies ("Collaborative Partners"). For
independently developed products, TheraTech has entered into licensing,
marketing and distribution agreements generally with pharmaceutical companies to
market TheraTech manufactured products, or has transferred the technology to
other companies. TheraTech continues to devote substantial resources to the
development of drug delivery technologies and product development programs.

The Company has entered into various product development, licensing, marketing,
manufacturing and supply agreements with Collaborative Partners. Product
development and licensing agreements generally provide for TheraTech to receive
payments in various forms, which can include licensing fees and other payments
upon the execution of an agreement, milestone payments upon achievement of
certain technical and regulatory goals and periodic payments in the form of cost
reimbursements for product development and clinical evaluation of a specified
product, including a portion of general and administrative expenses.

Manufacturing and supply agreements provide for TheraTech to manufacture and
transfer products to Collaborative Partners, which allows TheraTech to earn
product sales revenues in a variety of ways. In general, product sales represent
sales to TheraTech's marketing partners for resale purposes or contract
payments. Product sales may be recognized based on one or a combination of the
following: (i) TheraTech's fully burdened manufacturing cost; (ii) a fixed or
variable manufacturing profit; (iii) a transfer of product where the price is
based on a percentage of the marketing partners' sales to their clients; and/or
(iv) a royalty on the partners' product sales. Certain agreements also require
the marketing partner to meet certain production volumes or pay TheraTech's
fixed production costs. Accordingly, TheraTech's product sales do not
necessarily reflect the existing or future market demand for such products.

The Company's results of operations may vary significantly from quarter to
quarter and depend, among other factors, on the signing of new product
development agreements, the timing of fees and milestone payments made by
Collaborative Partners, the progress of clinical trials, product sales levels
and costs associated with the manufacturing processes. The timing of the
Company's research and development revenues may not match the timing of the
associated expenses. The amount of revenues in any given period is not
necessarily indicative of future revenues.

To date, four research and development programs have resulted in commercialized
products. TheraTech has received marketing clearance from the United States Food
and Drug Administration ("FDA") for its Alora(R) estradiol transdermal systems
for women and its Androderm(R) two and one half milligram ("2.5 mg")
testosterone transdermal system for men. Both received marketing clearances
within one year of their respective initial submissions. During 1997, TheraTech
also received marketing clearance for its Androderm(R) five milligram ("5 mg")
product within six months of filing its supplemental New Drug Application
("sNDA") with the FDA. These are the Company's first three commercial products
in the United States. The testosterone transdermal systems for men have also
been approved in certain European countries under different trade names.
TheraTech also has a nitroglycerin transdermal product which has been approved
in certain European countries and has been launched by TheraTech's marketing
partners in France, Greece, Holland and Italy.

Worldwide marketing rights (excluding certain Asian countries) have been granted
to Procter & Gamble Pharmaceuticals, Inc. ("Procter & Gamble") for TheraTech's
estradiol transdermal products and its estradiol/progestin combination product
which is currently in Phase III clinical trials. TheraTech's estradiol
transdermal products are marketed under the trade name Alora and are available
in 0.05, 0.075, and 0.1 mg per day dosage strengths. TheraTech made its initial
shipments of these products to Procter & Gamble in March 1997 and the commercial
launch of Alora commenced in the United States in May 1997. In December 1997,
TheraTech and Procter & Gamble announced an agreement to develop and market a
transdermal female testosterone product which is in Phase II clinical trials and
a transdermal female estradiol/testosterone combination product which is in
Phase I clinical trials.

<PAGE>   2

                                 THERATECH, INC.

                             ----------------------
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS


In September 1997, TheraTech announced that Astra AB ("Astra") had been granted
exclusive distribution and marketing rights to the Androderm testosterone
transdermal systems for men in Germany, Austria and Switzerland, it already had
rights to the products in Scandinavia. In December 1997, TheraTech announced a
similar agreement with Schwarz Pharma covering Belgium, France, Italy, the
Netherlands and certain East European countries. Marketing rights to these
countries were reacquired from SmithKline Beecham and Fournier earlier in the
year. TheraTech also has marketing agreements for its testosterone transdermal
systems with: SmithKline Beecham in the United States, Canada, Ireland and the
United Kingdom; Compania Espanola de la Penicilina y Antibioticos, S.L. ("CEPA")
in Spain; Laborterapia - Produtos Farmaceuticos, S.A. ("Laborterapia") in
Portugal; Wyeth-Ayerst International, Inc. ("Wyeth-Ayerst") in Mexico, Central
and South America, non-French-speaking Africa and the Middle East; and Samyang
Corporation ("Samyang") in South Korea. The 2.5 mg testosterone transdermal
product has received approval and is currently being marketed under the
following trade names: Androderm, by SmithKline Beecham in the United States and
by Samyang in South Korea; Andropatch(TM), by SmithKline Beecham in Ireland and
the United Kingdom; and Atmos(R), by Astra in Denmark, Finland, and Sweden.
TheraTech intends to assign marketing rights in the remaining unassigned
territories.

In May 1997, TheraTech and SmithKline Beecham announced that the FDA had cleared
the Androderm 5 mg product for marketing in the United States. The commercial
launch of this product by SmithKline Beecham occurred in the United States in
June 1997. The 5 mg product has also been approved in certain European countries
and is being marketed in Ireland and the United Kingdom by SmithKline Beecham
under the trade name Andropatch and in Sweden by Astra under the trade name
Atmos. The original testosterone transdermal product was a two-patch per day,
2.5 mg system. The new 5 mg patch restores testosterone levels to a normal range
by continuous delivery of testosterone for 24 hours in a convenient one-patch
per day formulation. Both Androderm 2.5 mg and 5 mg products are currently
available to meet patient needs.

TheraTech was responsible for filing with the FDA the Androderm 2.5 mg New Drug
Application ("NDA") and the Androderm 5 mg sNDA in the United States. In all
other countries, TheraTech's partners are responsible for filing and obtaining
regulatory approvals to market the male testosterone product. The ability to
market and the timing of the testosterone product launch in the various
countries is dependent upon obtaining the necessary regulatory approvals.

To date, the Company's product sales, operating results and assets associated
with operations outside the United States have not been a significant portion of
the Company's consolidated business. For each of the years ended December 31,
1997, 1996 and 1995, less than 10 percent of the Company's total revenues,
including product sales, licensing fees, and research and development revenue,
were attributable to export sales and other revenues derived from foreign
sources.

RESULTS OF OPERATIONS

For the year ended December 31, 1997, the Company had net income of $5,851,000,
equal to $0.27 per share. This compares to net income of $4,225,000 or $0.20 per
share, and a net loss of $7,841,000 or $0.40 per share for the years ended
December 31, 1996 and 1995, respectively. The Company had total revenues of
$39,750,000, $36,361,000 and $24,521,000 for the years ended December 31, 1997,
1996 and 1995, respectively.

RESEARCH AND DEVELOPMENT REVENUES were $20,240,000, $20,413,000 and $15,998,000
for the years ended December 31, 1997, 1996 and 1995, respectively. During 1997,
TheraTech earned a majority of its revenues from its collaborative development
programs with Procter & Gamble involving (i) Phase III development activities on
the estradiol/progestin combination product; (ii) technical support for the
Alora market launch, continuing estradiol development activities necessary for
foreign regulatory approval, along with stability studies and clinical trials
associated with the estradiol program; and (iii) Phase II clinical and
development activities for the female testosterone transdermal product. Other
programs included preclinical research and development activities on the OTM
delivery technology under the multi-product collaboration with Eli Lilly and
Company ("Lilly") signed in January 1997 and on-going development activities on
the 5 mg testosterone product for SmithKline Beecham and other partners. With
the commercial launches of Alora in May 1997 and the Androderm 5 mg product in
June 1997, major development activities for these products were being completed.
As a result, research and development revenues for these products decreased in
the 1997 period compared to the 1996 period. This decrease was largely offset by
revenues generated from other product development programs.

                                       2
<PAGE>   3

                                 THERATECH, INC.

                             ----------------------
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS


During 1996, TheraTech earned revenues for: (i) estradiol commercialization
activities performed for Procter & Gamble, which included a milestone payment
for the FDA clearance in December 1996 to market the estradiol transdermal
system for women in the United States; (ii) estradiol/progestin combination
product development activities also with Procter & Gamble, which completed Phase
II studies and initiated Phase III clinical trials; (iii) development activities
on the 5 mg testosterone product for SmithKline Beecham and Wyeth-Ayerst, which
included filing an sNDA with the FDA in October 1996; (iv) product development
activities on oxybutynin for Meiji Milk Products Co. ("Meiji"), in the form of
milestone payments; and (v) providing supplies for additional Androderm clinical
trials, supporting Collaborative Partners with foreign regulatory filings and
other research and development activities. The milestone payment received for
the FDA approval of Alora is primarily the reason for the increase in revenues
from 1995 to 1996.

A substantial portion of research and development revenues in 1995 resulted
primarily from an agreement signed in 1995 with Procter & Gamble to develop and
market new hormone replacement products for women. Under this agreement,
TheraTech received significant milestone payments for the estradiol NDA
submission and for the completion of Phase I studies on the estradiol/progestin
combination product. TheraTech also earned from Procter & Gamble cost
reimbursements of research and development expenses for these products. During
1995, milestone and cost reimbursement payments were also received from
SmithKline Beecham, Grelan Pharmaceutical Co., Ltd and Nichiiko Pharmaceutical
Co., Ltd.

PRODUCT SALES for the years ended December 31, 1997, 1996 and 1995 were
$15,470,000, $11,296,000 and $4,318,000, respectively. TheraTech began shipping
initial supplies of Alora to Procter & Gamble in March 1997, and retail
distribution and promotion to physicians by Procter & Gamble began in May 1997.
Also in May, TheraTech began shipping initial supplies of the new Androderm 5 mg
product to SmithKline Beecham. Retail distribution and promotion to physicians
of this product by SmithKline Beecham began in June 1997. TheraTech also
recorded sales of the nitroglycerin product in certain European countries
reported by Lavipharm S.A. ("Lavipharm"). As a result, product sales increased
in the 1997 period.

Product sales during 1996 relate primarily to TheraTech's 2.5 mg testosterone
transdermal products including Androderm, Andropatch and Atmos. Product sales
during 1996 also include (i) client contract payments received by Natrapac,
Inc., a wholly-owned consumer products subsidiary of TheraTech for providing
non-pharmaceutical packaging services, (ii) repackaging of patient and physician
inserts into cartons of Androderm, (iii) payments for fixed production costs,
and (iv) royalties on sales by Lavipharm of the nitroglycerin product in Italy,
France and Greece.

Product sales during 1995 were primarily from the launch of the Androderm 2.5 mg
product in the United States. The Company also recognized revenue on Lavipharm's
sales of the nitroglycerin product which was launched in Italy and France during
1995.

LICENSING REVENUES were $2,495,000, $2,999,000 and $2,715,000 for the years
ended December 31, 1997, 1996 and 1995, respectively. During the 1997, TheraTech
granted distribution and marketing rights for the testosterone transdermal
system for men to Schwartz Pharma in 13 European and East European countries,
and to Astra in Germany, Austria and Switzerland. Procter & Gamble also extended
its marketing rights for the estradiol and estradiol/progestin combination
products into certain Asian countries. Additionally, TheraTech earned licensing
revenues from Wyeth-Ayerst for the achievement of milestones under a
testosterone product licensing agreement and from Samyang under an estradiol
product licensing agreement.

During the 1996 period, TheraTech earned licensing revenues from SmithKline
Beecham, Wyeth-Ayerst and Astra for achieving milestones under their
testosterone product licensing agreements and from Samyang for milestones under
an estradiol/progestin combination product licensing agreement and testosterone
product licensing agreement.

During 1995, TheraTech earned licensing fees by achieving milestones for the
approval of Androderm in the United States and upon regulatory submission of the
2.5 mg testosterone transdermal product in France. Also during the period, the
Company earned fees upon signing agreements with Wyeth-Ayerst and Astra for
distribution of the testosterone transdermal 


                                       3

<PAGE>   4

                                 THERATECH, INC.

                             ----------------------
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS


product. Licensing fees also included the payment by Procter & Gamble for
worldwide (excluding Asian countries) marketing rights covering new female
hormone replacement products.

INTEREST AND OTHER REVENUES were $1,544,000, $1,653,000 and $1,490,000 for the
years ended December 31, 1997, 1996 and 1995, respectively. Interest and other
revenues consist primarily of interest income. The Company earned interest
income of $1,461,000, $1,296,000 and $1,438,000 for the years ended December 31,
1997, 1996 and 1995, respectively. Interest income increased during the 1997
period from the 1996 period due to higher average balances in cash, cash
equivalents and investments. Interest income during the 1996 period decreased
from the 1995 period due to lower yields on lower average balances in cash, cash
equivalents and investments.

Other revenues in the 1997 period consisted primarily of intermediate materials
sold to Collaborative Partners. Other revenues in the 1996 period consisted
primarily of a settlement with a supplier of manufacturing materials,
intermediate materials sold to a Collaborative Partner and a foreign currency
transaction gain on a Collaborative Partner payment.

RESEARCH AND DEVELOPMENT EXPENSES for the years ended December 31, 1997, 1996
and 1995 were $16,952,000, $18,086,000 and $19,959,000, respectively. Research
and development programs during the 1997 period include the following: (i)
estradiol/progestin combination product development activities, including
certain Phase III clinical costs; (ii) preclinical research and development on
the pulmonary drug delivery technology; (iii) continuing estradiol development
activities necessary for foreign regulatory approval, along with stability
studies and clinical costs associated with the program; (iv) preclinical
research and development activities on the OTM drug delivery technology; (v)
Androderm 5 mg development and commercialization activities including
interactions with the FDA; (vi) Phase II clinical and development activities for
the female testosterone transdermal product; (vii) Phase II oxybutynin
development activities in the United States and Phase I development activities
for Meiji's oxybutynin product in Japan; (viii) Phase I development activities
for the nicotine oral lozenge product; and (ix) various other collaboratively
and independently developed products and technologies in several areas including
transdermal, oral controlled release, pulmonary and drug targeting. With the
commercial launches of Alora in May 1997 and the Androderm 5 mg product in June
1997, major development activities for these products were being completed. As a
result, research and development expenses for these products decreased in the
1997 period compared to the 1996 period.

The reduction in 1996 compared to 1995 was the result of Phase III clinical
trials and NDA preparation activities for the estradiol transdermal product and
Androderm commercialization activities conducted during 1995 and not repeated in
1996. This decrease was partially offset by additional spending on: (i)
commercialization, pre-approval inspection preparation and follow-up activities
for the estradiol transdermal product; (ii) estradiol/progestin combination
product development activities including completion of Phase II studies and
initiation of Phase III clinical trials; (iii) testosterone single patch per day
product development activities; (iv) female testosterone product Phase I and
Phase II clinical activities; and (v) other projects funded by Collaborative
Partners and by TheraTech.

During 1995, research and development expenses included the completion of Phase
III clinical studies and the NDA submission for TheraTech's estradiol
transdermal product, validation of the manufacturing process for Androderm,
preproduction start-up expenses and costs associated with new and existing
programs. Preproduction start-up expenses which included costs associated with
staffing, training and operating the Company's commercial manufacturing facility
were required to obtain regulatory approvals and prepare for product
commercialization.

COST OF PRODUCTS SOLD for the years ended December 31, 1997, 1996 and 1995 were
$10,640,000, $8,009,000 and $4,711,000, respectively, which included direct and
indirect manufacturing costs attributable, in the 1997 period to production of
the testosterone transdermal products and Alora, and in the 1996 period to the
production of Androderm, Atmos and Andropatch, and the packaging cost associated
with the Natrapac client contract. Gross margin on products sold improved to
31.2 percent for 1997, compared to 29.1 percent for 1996 and a negative 9.1
percent for 1995. The improved gross margins resulted from increased revenues
recognized on Collaborative Partners shipments of products to their customers
and improved production efficiencies.

                                       4

<PAGE>   5

                                 THERATECH, INC.

                             ----------------------
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS


GENERAL AND ADMINISTRATIVE EXPENSES for the years ended December 31, 1997, 1996
and 1995 were $5,370,000, $4,935,000 and $6,694,000, respectively. The increase
in expenses during 1997 is primarily due to outside services associated with
business development and the negotiation of several contracts. The reduction of
expenses in the 1996 period was primarily the result of 1995 outside services
associated with the negotiation of several contracts being greater than such
services in 1996. Expenses in 1995 included outside legal and consulting fees
incurred in connection with marketing and supply agreements, costs to re-acquire
the testosterone transdermal product marketing rights in Scandinavia, as well as
the costs associated with growth in Japanese operations.

INTEREST AND OTHER EXPENSES for the years ended December 31, 1997, 1996 and 1995
were $937,000, $1,106,000 and $998,000, respectively. Interest and other
expenses consist primarily of interest expense. The Company incurred interest
expense of $888,000, $1,060,000 and $972,000 for the years ended December 31,
1997, 1996 and 1995, respectively. The reduction in interest expense between
1997 and 1996 reflects lower total debt resulting from monthly payments of
principal and interest toward notes payable and capital lease obligations. The
increase in interest expense from 1995 to 1996 reflects an increase in capital
lease obligations which were entered into in late 1995, partially offset by the
payment of notes payable and capital lease obligations during 1996.


LIQUIDITY AND CAPITAL RESOURCES

Since its inception, TheraTech has funded its operations primarily through
equity and debt financing, collaborative research and development agreements,
product sales, licensing fees, and other revenues. As of December 31, 1997 and
1996, TheraTech had cash, cash equivalents and investments totaling $27,379,000
and $25,215,000, respectively. This increase was primarily the result of cash
provided by operating activities, partially offset by cash used in investing
activities (when adjusted for the net purchases and sales of securities) and
financing activities as reflected in the Company's Consolidated Statements of
Cash Flows.

Net cash provided by operating activities for the years ended December 31, 1997
and 1996 was $7,141,000 and $4,039,000, respectively, compared to net cash used
in operating activities of $4,300,000 for 1995. Cash provided in 1997 and 1996
was primarily a result of net income and adjustments of non-cash expenses for
depreciation and amortization, as compared to a net loss in 1995. The increase
in cash during 1997 was partially offset by small increases in inventories and
receivables along with decreases in unearned revenue, accounts payable and
accrued liabilities. The increase in cash during 1996 was partially offset by
increases in contracts and accounts receivable and a decrease in accounts
payable and accrued liabilities.

The net cash provided by operating activities in 1997 is not necessarily
indicative of future levels. As a result of changing levels of product sales and
production costs, the amount and timing of milestone payments and licensing
fees, and the timing of expenditures for new and existing product development
programs, net income and accordingly the levels of net cash from operations will
vary from year to year.

The Company's investing activities during the year ended December 31, 1997 used
$10,704,000 compared to cash provided of $1,390,000 during 1996. Cash used in
the 1997 period was primarily for the purchase of investment securities with the
Company's excess cash. TheraTech evaluates its total cash position by including
all its investments. If the net effect of cash used for the purchase and sales
of securities were removed, investing activities would have used $4,402,000
during 1997 and used $2,976,000 during 1996. Cash used in the 1997 period
reflects the purchases of equipment, leasehold improvements and intangible
assets, which was primarily a non-exclusive, world-wide sublicense of certain
patents relating to female hormone treatment. Cash used during 1996 was
primarily for plant expansion costs and the purchase of equipment for
manufacturing and research and development, partially offset by the release of
cash previously restricted as part of a covenant in a financing agreement.

In a non-cash transaction, the Company acquired the marketing rights of certain
hormone replacement therapy products which were subsequently licensed to a
Collaborative Partner. The transaction has been reflected as an increase in
intangible assets and other liabilities, and requires only principal payments
over five years beginning in 1998.

                                       5

<PAGE>   6

                                 THERATECH, INC.

                             ----------------------
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS


Cash used in investing activities is generally a function of capital
expenditures. The Company's future capital expenditure requirements will depend
upon numerous factors, including the progress of research and development
activities, the resources that the Company devotes to the independent
development of products and technologies, and the need for additional
manufacturing plant and equipment due to the demand for its other products, if
and when approved.

Net cash used in financing activities for the years ended December 31, 1997 and
1996 was $530,000 and $739,000, respectively. Cash used in the 1997 and 1996
periods consist primarily of payments on notes payable and capital lease
obligations, largely offset by proceeds from the issuance of stock in both the
employee stock purchase plan and the employee stock option plan, and in 1996,
from a short-term note with a client company. Based upon current expectation of
operations and capital expenditures for 1998, the Company anticipates that its
available cash, cash equivalents and investments plus anticipated revenues from
collaborative agreements, product licensing and sales, interest income and bank
financing should be sufficient to fund its current capital requirements and
operating activities.

Year 2000 Issue

The Company has determined that it will need to modify or replace significant
portions of its software to enable its computer systems to function properly
with respect to dates in the year 2000 and beyond. The Company also has
initiated discussions with its large customers, significant suppliers and
financial institutions to ensure that those parties have appropriate plans to
remediate Year 2000 issues where their systems interface with the Company's
systems or otherwise impact its operations. The Company is assessing the extent
to which its operations are vulnerable should those organizations fail to
properly remediate their computer systems.

The Company's Year 2000 initiative is being managed by a team of internal staff
and outside consultants. The team's activities are designed to ensure that there
are no adverse effects on the Company's core business operations and that
transactions with customers, suppliers and financial institutions are fully
supported. The Company is well underway with these efforts, which are scheduled
to be completed in mid-1999. While the Company believes that its planning
efforts are adequate to address its Year 2000 concerns and that expenditures
associated with Year 2000 compliance will not have a material impact on
anticipated earnings in 1998 or 1999, there can be no assurance that unexpected
difficulties will not arise or prevent TheraTech's and other companies systems
from being converted on a timely basis or that such expenditures will not have a
material adverse effect on the Company's business, financial condition or
results of operations.

New Accounting Pronouncements

The Financial Accounting Standards Board has issued Statement of Financial
Accounting Standards ("SFAS") No. 130, "Reporting Comprehensive Income", which
is effective for fiscal years beginning after December 15, 1997. SFAS No. 130
requires all items that are recognized under accounting standards as components
of comprehensive income be reported in a financial statement that is displayed
with the same prominence as other financial statements. Examples of other
comprehensive income include foreign currency items, unrealized gains and losses
on certain investments in debt and equity securities and minimum pension
liability adjustments. It is not anticipated that the adoption of this statement
will have a material effect on the financial statements of the Company.


                                       6
<PAGE>   7

                                 THERATECH, INC.
                                -----------------
                      SELECTED CONSOLIDATED FINANCIAL DATA
                      (In thousands, except per share data)

<TABLE>
<CAPTION>
                                                              YEAR ENDED DECEMBER 31,
                                               --------------------------------------------------------
                                                 1997        1996        1995        1994        1993
                                               --------    --------    --------    --------    --------
<S>                                            <C>         <C>         <C>         <C>         <C>     
STATEMENTS OF OPERATIONS DATA:
Revenues:
     Research and development                  $ 20,241    $ 20,413    $ 15,998    $  3,228    $  2,063
     Product sales                               15,470      11,296       4,318          --          -- 
     Licensing                                    2,495       2,999       2,715       4,277       3,300
     Interest and other                           1,544       1,653       1,490       1,282         902
                                               --------    --------    --------    --------    --------
         Total revenues                          39,750      36,361      24,521       8,787       6,265

Costs and expenses:
     Research and development                    16,952      18,086      19,959      15,581       8,957
     Cost of products sold                       10,640       8,009       4,711          --          -- 
     General and administrative                   5,370       4,935       6,694       4,545       3,617
     Interest and other                             937       1,106         998         298         120
     Purchase of in-process technology               --          --          --          --       1,446
                                               --------    --------    --------    --------    --------
         Total costs and expenses                33,899      32,136      32,362      20,424      14,140
                                               --------    --------    --------    --------    --------
Net income (loss)                              $  5,851    $  4,225    $ (7,841)   $(11,637)   $ (7,875)
                                               ========    ========    ========    ========    ========
Net income (loss) per share - basic (1)        $   0.28    $   0.21    $  (0.40)   $  (0.61)   $  (0.50)
                                               ========    ========    ========    ========    ========
Net income (loss) per share - diluted (1)      $   0.27    $   0.20    $  (0.40)   $  (0.61)   $  (0.50)
                                               ========    ========    ========    ========    ========

BALANCE SHEET DATA:
Cash, cash equivalents and investments         $ 27,379    $ 25,215    $ 25,098    $ 29,050    $ 18,749
Working capital                                  24,710      22,302      14,530      20,012      14,831
Total assets                                     61,861      53,847      50,836      49,818      28,060
Notes payable and capital lease obligations,
     less current portion                         7,261       8,661      10,320       8,662         652
Accumulated deficit                             (27,210)    (33,061)    (37,286)    (29,445)    (17,808)
Stockholders' equity                             43,557      36,022      30,391      37,307      22,595
</TABLE>

- ---------

1)  The net income (loss) per share amounts prior to 1997 have been restated as
    required to comply with Statement of Financial Accounting Standards No. 128,
    "Earnings per Share". For further discussion on earnings per share and the
    impact of Statement No. 128, see the notes to the consolidated financial
    statements.


<PAGE>   8

                                 THERATECH, INC.
                                -----------------
                      CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                       YEAR ENDED DECEMBER 31,
                                              ------------------------------------------
                                                  1997           1996           1995
                                              ------------   ------------   ------------
<S>                                           <C>            <C>            <C>         
Revenues:
     Research and development revenue under
        collaborative agreements              $ 20,240,486   $ 20,413,161   $ 15,997,563
     Product sales                              15,469,831     11,296,298      4,318,193
     Licensing                                   2,495,000      2,999,000      2,715,000
     Interest and other                          1,544,302      1,653,083      1,490,777
                                              ------------   ------------   ------------
        Total revenues                          39,749,619     36,361,542     24,521,533

Costs and expenses:
     Research and development                   16,952,259     18,086,153     19,959,358
     Cost of products sold                      10,639,550      8,008,967      4,711,102
     General and administrative                  5,370,070      4,935,429      6,694,112
     Interest and other                            936,991      1,106,084        997,550
                                              ------------   ------------   ------------
        Total costs and expenses                33,898,870     32,136,633     32,362,122
                                              ------------   ------------   ------------
Net income (loss)                             $  5,850,749   $  4,224,909   $ (7,840,589)
                                              ============   ============   ============
Net income (loss) per share - basic           $       0.28   $       0.21   $      (0.40)
                                              ============   ============   ============
Net income (loss) per share - diluted         $       0.27   $       0.20   $      (0.40)
                                              ============   ============   ============
</TABLE>


See accompanying notes.

<PAGE>   9
                                 THERATECH, INC.
                                -----------------
                           CONSOLIDATED BALANCE SHEETS

                                     ASSETS

<TABLE>
<CAPTION>
                                                                                     DECEMBER 31,
                                                                            ----------------------------
                                                                                1997            1996
                                                                            ------------    ------------
<S>                                                                         <C>             <C>         
Current assets:
     Cash and cash equivalents                                              $ 14,979,465    $ 19,116,991
     Short-term investments                                                    9,397,948       4,097,419
     Contracts and accounts receivable                                         4,847,106       4,726,112
     Inventories                                                               2,830,270       2,277,021
     Prepaid expenses                                                             66,095          36,127
                                                                            ------------    ------------
        Total current assets                                                  32,120,884      30,253,670
Investments in long-term securities                                            3,001,938       2,000,468
Plant and equipment:
     Plant                                                                     9,301,171       9,301,171
     Equipment                                                                15,039,772      11,950,618
     Leasehold improvements                                                      806,740         986,703
     Construction in progress                                                  2,395,759       2,929,228
                                                                            ------------    ------------
                                                                              27,543,442      25,167,720
     Less accumulated depreciation and amortization                           (8,225,341)     (5,737,034)
                                                                            ------------    ------------
        Net plant and equipment                                               19,318,101      19,430,686
Other assets:
     Intangible assets                                                         7,115,879       1,165,998
     Other assets                                                                304,008         995,980
                                                                            ------------    ------------
        Total other assets                                                     7,419,887       2,161,978
                                                                            ------------    ------------
            Total assets                                                    $ 61,860,810    $ 53,846,802
                                                                            ============    ============

                          LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
     Accounts payable                                                       $  1,517,512    $  1,360,512
     Accrued liabilities                                                       1,941,915       2,383,698
     Current portion of notes payable and capital lease obligations            1,397,763       1,609,587
     Unearned revenue                                                          2,553,237       2,597,942
                                                                            ------------    ------------
        Total current liabilities                                              7,410,427       7,951,739

Notes payable, less current portion                                            5,135,569       5,684,880
Capital lease obligations, less current portion                                2,125,366       2,975,864
Other liabilities                                                              3,420,000              --
Unearned revenue                                                                 212,000       1,212,000

Commitments and contingencies

Stockholders' equity:
     Common stock, $0.01 par value:
        Authorized - 50,000,000 shares; issued and outstanding 21,019,255
        as of December 31, 1997 and 20,563,395 as of December 31, 1996           210,193         205,634
     Additional paid-in capital                                               70,840,782      69,116,551
     Accumulated deficit                                                     (27,210,414)    (33,061,163)
     Cumulative translation adjustment                                          (283,113)       (238,703)
                                                                            ------------    ------------
        Total stockholders' equity                                            43,557,448      36,022,319
                                                                            ============    ============
            Total liabilities and stockholders' equity                      $ 61,860,810    $ 53,846,802
                                                                            ============    ============
</TABLE>


See accompanying notes.

<PAGE>   10

                                 THERATECH, INC.
                                -----------------
                 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

<TABLE>
<CAPTION>
                                                                                                                           
                                                                 COMMON STOCK                ADDITIONAL      UNREALIZED
                                                        -------------------------------       PAID-IN       GAIN (LOSS)
                                                            SHARES           PAR VALUE         CAPITAL     ON INVESTMENTS  
                                                        --------------- ---------------  ---------------  ---------------  
<S>                                                     <C>             <C>              <C>              <C>              
Balance at December 31, 1994                                19,599,297       $ 195,993     $ 66,584,075        $ (52,958)  
     Common stock issued upon exercise
         of stock options                                      377,025           3,770          742,909               --
     Common stock issued in the employee
         stock purchase plan                                    31,386             315          160,772               --     
     Compensation expense related to the
         grant of stock options                                     --              --           21,392               --     
     Unrealized gain on investments held
         as available-for-sale                                      --              --               --          132,899   
     Cumulative translation adjustment                              --              --               --               --   
     Net loss                                                       --              --               --               --   
                                                        --------------- ---------------  ---------------  ---------------  
 Balance at December 31, 1995                               20,007,708         200,078       67,509,148           79,941   
     Common stock issued upon exercise
         of stock options                                      519,321           5,193        1,313,287               --   
     Common stock issued in the employee
         stock purchase plan                                    36,385             363          293,448               --   
     Repurchase of fractional shares resulting
         from the 3-for-2 stock split                              (19)             --             (288)              --   
     Compensation expense related to the
         grant of stock options                                     --              --              956               --   
     Change in unrealized gain on investments held
         as available-for-sale                                      --              --               --          (79,941)  
     Cumulative translation adjustment                              --              --               --               --
     Net income                                                     --              --               --               --   
                                                        --------------- ---------------  ---------------  ---------------  
 Balance at December 31, 1996                               20,563,395         205,634       69,116,551               --   
     Common stock issued upon exercise
         of stock options, net                                 379,650           3,797        1,016,636                    
     Common stock issued in the employee
         stock purchase plan, net                               43,525             435          374,922               --
     Common stock issued for in-process technology              32,685             327          332,673               --
     Cumulative translation adjustment                              --              --                --              --
     Net income                                                     --              --                --              --
                                                        --------------- ---------------  ---------------  ---------------  
 Balance at December 31, 1997                               21,019,255       $ 210,193     $ 70,840,782              $ -   
                                                        =============== ===============  ===============  ===============  
</TABLE>


<TABLE>
<CAPTION>
                                                                            CUMULATIVE       TOTAL
                                                         ACCUMULATED       TRANSLATION    STOCKHOLDERS'
                                                           DEFICIT          ADJUSTMENT      EQUITY
                                                      ----------------   --------------  ---------------
<S>                                                   <C>               <C>              <C>         
Balance at December 31, 1994                            $ (29,445,483)    $     25,361     $ 37,306,988
     Common stock issued upon exercise
         of stock options                                          --               --          746,679
     Common stock issued in the employee
         stock purchase plan                                       --               --          161,087
     Compensation expense related to the
         grant of stock options                                    --               --           21,392
     Unrealized gain on investments held
         as available-for-sale                                     --               --          132,899
     Cumulative translation adjustment                                        (137,006)        (137,006)
     Net loss                                              (7,840,589)              --       (7,840,589)
                                                      ----------------   --------------  ---------------
 Balance at December 31, 1995                             (37,286,072)        (111,645)      30,391,450
     Common stock issued upon exercise
         of stock options                                          --               --        1,318,480
     Common stock issued in the employee
         stock purchase plan                                       --               --          293,811
     Repurchase of fractional shares resulting
         from the 3-for-2 stock split                              --               --             (288)
     Compensation expense related to the
         grant of stock options                                    --               --              956
     Change in unrealized gain on investments held
         as available-for-sale                                     --               --          (79,941)
     Cumulative translation adjustment                             --         (127,058)        (127,058)
     Net income                                             4,224,909               --        4,224,909
                                                      ----------------   --------------  ---------------
 Balance at December 31, 1996                             (33,061,163)        (238,703)      36,022,319
     Common stock issued upon exercise
         of stock options, net                                     --               --        1,020,433
     Common stock issued in the employee
         stock purchase plan, net                                  --               --          375,357
     Common stock issued for in-process technology                 --               --          333,000
     Cumulative translation adjustment                             --          (44,410)         (44,410)
     Net income                                             5,850,749               --        5,850,749
                                                      ----------------   --------------  ---------------
 Balance at December 31, 1997                           $ (27,210,414)    $    (283,113)   $ 43,557,448
                                                      ================   ==============  ===============
</TABLE>

See accompanying notes.

<PAGE>   11
                                 THERATECH, INC.
                                -----------------
                      CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                                                YEAR ENDED DECEMBER 31,
                                                                     --------------------------------------------
                                                                         1997            1996            1995
                                                                     ------------    ------------    ------------
<S>                                                                  <C>             <C>             <C>          
OPERATING ACTIVITIES:
Net income (loss)                                                    $  5,850,749    $  4,224,909    $ (7,840,589)
Adjustments to reconcile net income (loss) to net cash provided by
     (used in) operating activities:
     Depreciation and amortization                                      3,056,619       2,354,279       1,552,362
     Common stock issued for in-process technology                        333,000              --              --
     Compensation expense related to the grant of   
        stock options                                                          --             956          21,392
     Changes in operating assets and liabilities:
          Contracts and accounts receivable                              (120,994)     (2,568,553)     (1,139,339)
          Inventories                                                    (553,249)        141,495      (2,418,516)
          Prepaid expenses                                                284,117         409,214         (46,386)
          Accounts payable and accrued liabilities                       (664,783)       (688,455)      2,146,684
          Unearned revenue                                             (1,044,705)        165,120       3,424,322
                                                                     ------------    ------------    ------------
            Net cash provided by (used in) operating activities         7,140,754       4,038,965      (4,300,070)

INVESTING ACTIVITIES:
Purchases of securities                                               (12,411,000)     (5,519,041)    (10,252,075)
Sales and maturities of securities                                      6,109,001       9,884,968      11,200,326
Purchases of plant and equipment                                       (2,677,467)     (3,628,421)     (3,962,822)
Purchase of intangible assets                                          (2,416,448)       (107,739)       (170,922)
Changes in other assets                                                   691,972         760,440       1,215,783
                                                                     ------------    ------------    ------------
            Net cash provided by (used in) investing activities       (10,703,942)      1,390,207      (1,969,710)

FINANCING ACTIVITIES:
Proceeds from issuance of notes payable and
     capital lease obligations                                                 --         300,000       4,069,477
Proceeds from issuance of common stock, net                             1,395,790       1,612,003         907,766
Payments of notes payable and capital lease obligations                (1,925,718)     (2,651,478)     (1,706,564)
                                                                     ------------    ------------    ------------
            Net cash provided by (used in) financing activities          (529,928)       (739,475)      3,270,679
Effect of exchange-rate changes on cash and cash equivalents              (44,410)       (127,058)       (137,006)
                                                                     ------------    ------------    ------------
Net increase (decrease) in cash and cash equivalents                   (4,137,526)      4,562,639      (3,136,107)
Cash and cash equivalents at beginning of period                       19,116,991      14,554,352      17,690,459
                                                                     ============    ============    ============
Cash and cash equivalents at end of period                           $ 14,979,465    $ 19,116,991    $ 14,554,352
                                                                     ============    ============    ============
</TABLE>


See accompanying notes.


<PAGE>   12

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. ACCOUNTING POLICIES

Organization and Business Activities

TheraTech, Inc. ("TheraTech" or the "Company") was incorporated in January 1985
and develops advanced, controlled release and other drug delivery products which
administer drugs through the skin, by oral delivery to the gastrointestinal
tract, through tissues in the oral cavity, through absorption in the lungs and
by other means. The Company designs, develops and manufactures products which it
believes utilize the most effective delivery method for administering a given
drug.

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and
its wholly-owned subsidiaries Nippon TTI K.K. ("TheraTech Japan") and Natrapac,
Inc. ("Natrapac"). All significant intercompany accounts and transactions have
been eliminated.

Estimates

Preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities at the date of the
financial statements and the reported amounts of revenues and expenses during
the reporting periods. Actual results could differ from those estimates.

Reclassifications

Certain prior year amounts have been reclassified to conform with the 1997
presentation.

Revenues

The Company has entered into various collaborative research and development,
product licensing and marketing agreements with certain pharmaceutical companies
("Collaborative Partners"). These agreements provide for TheraTech to receive
payments in various forms, which can include licensing fees and other payments
upon execution of an agreement, milestone payments upon achievement of certain
technical and regulatory goals and periodic payments in the form of cost
reimbursements for product development and clinical evaluation of a specified
product, including a portion of general and administrative expenses. Research
and development revenues and licensing fees are recognized as earned based on
terms in the specific contracts. Milestone payments are included in revenues in
the period in which the applicable milestone is achieved.

TheraTech has also entered into various product supply agreements to manufacture
products for certain Collaborative Partners. These agreements include provisions
for TheraTech to recognize product sales and unearned revenue at the time
TheraTech ships product to the Collaborative Partner and/or at the time the
Collaborative Partner ships product to its customers. Unearned revenue relates
to advances on future product sales.

Three Collaborative Partners accounted for 82 percent of research and
development and licensing revenues for the year ended December 31, 1997, three
Collaborative Partners accounted for 86 percent in 1996 and four Collaborative
Partners accounted for 84 percent in 1995. Additionally, two Collaborative
Partners accounted for 95 percent of product sales for the year ended December
31, 1997, and one Collaborative Partner accounted for 79 and 94 percent of
product sales in 1996 and 1995, respectively.

Interest and other revenues consist primarily of interest income. The Company
earned interest income of $1,461,236, $1,296,163, and $1,438,123 for the years
ended December 31, 1997, 1996 and 1995, respectively.

                                      -1-

<PAGE>   13

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Research and Development

Research and development expenses consist of self-funded research and
development costs and the costs associated with work performed under
collaborative research and development agreements. Research and development
expenses include direct and allocated expenses and exclude reimbursable general
and administrative costs. Research and development expenses incurred under
collaborative agreements were approximately $12,581,000, $14,813,000 and
$13,939,000 for the years ended December 31, 1997, 1996 and 1995, respectively.
The Company performs research and development under agreements with certain of
its pharmaceutical company partners, some of whom have made equity investments
in TheraTech. None of these partners have an interest greater than a 10 percent
in the Company.

Income Taxes

The Company records its income taxes under the asset and liability method, in
which deferred income taxes are recognized for the tax consequences of
"temporary differences" by applying enacted statutory tax rates applicable to
future years to differences between the financial statement carrying amounts and
the tax basis of existing assets and liabilities. The effect on deferred taxes
of a change in tax rates is recognized in income in the period of the enactment
date.

Net Income (Loss ) per Share

In 1997, the Financial Accounting Standards Board issued Statement No. 128,
"Earnings per Share". Statement 128 replaced the calculation of primary and
fully diluted earnings per share with basic and diluted earnings per share.
Unlike primary earnings per share, basic earnings per share excludes any
dilutive effects of options, warrants and convertible securities. Diluted
earnings per share is very similar to the previously reported fully diluted
earnings per share. All earnings per share amounts for all periods have been
presented, and where appropriate, restated to conform to the Statement 128
requirements.

Cash and Cash Equivalents

Cash includes currency on hand and demand deposits with financial institutions.
Cash equivalents consist of highly liquid investments with original maturities
of three months or less. The carrying amount reported on the balance sheets for
cash and cash equivalents approximates their fair value.

Credit and Investment Risk

The Company considers its credit risk to be minimal as its transactions are
primarily with major pharmaceutical company partners. Allowances for doubtful
accounts were $50,000 and $91,000 at December 31, 1997 and 1996, respectively.
Additionally, short-term investments and investments in long-term securities at
December 31, 1997 and 1996 consist of investment grade U.S. Government
obligations and corporate debt securities of companies with strong credit
ratings from a variety of industries.

Plant and Equipment

Plant and equipment is recorded at cost. Depreciation of plant and equipment is
computed on a straight-line basis over estimated useful lives of three to seven
years for equipment and 20 years for the plant. Equipment under capital leases
is stated at the present value of minimum lease payments and is amortized using
the straight-line method over the estimated useful life of the asset. Leasehold
improvements are amortized straight line over the lesser of the useful life of
the improvement or lease term. Amortization of equipment under capital leases
and leasehold improvements is included with depreciation expense.


                                      -2-
<PAGE>   14

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

 Intangible and Other Assets

Intangible and other assets consist of the following:

<TABLE>
<CAPTION>
                                                    December 31,
                                             -----------------------
                                                1997         1996
                                             ----------   ----------
<S>                                          <C>          <C>       
Intangible assets:
    Patent application costs, net            $3,535,111   $1,163,253
    Marketing rights, net                     3,578,333           --
    Other                                         2,435        2,745
                                             ----------   ----------

        Net intangible assets                $7,115,879   $1,165,998
                                             ==========   ========== 
Other assets:
    Deposits                                 $  175,099   $  195,637
    Cash surrender value of life insurance      128,909       50,343
    Restricted cash                                  --      750,000
                                             ----------   ----------

        Total other assets                   $  304,008   $  995,980
                                             ==========   ==========
</TABLE>

Patent application costs represent capitalized legal and other costs incurred in
connection with obtaining patents which, once granted, are amortized over the
shorter of 17 years, the remaining patent life or the estimated useful life of
the patent using the straight-line method. During 1997, TheraTech acquired a
non-exclusive, world-wide sublicense to certain patents relating to hormone
treatment. Accumulated amortization was $163,505 and $118,605 as of December 31,
1997 and 1996, respectively. Amortization expense was $44,900, $35,873 and
$31,285 for the years ended December 31, 1997, 1996 and 1995, respectively.

Marketing rights represent costs incurred to acquire the marketing rights of
certain hormone replacement therapy products which were subsequently licensed to
a Collaborative Partner. The Company acquired the marketing rights in a non-cash
transaction which has been reflected as an increase in intangible assets and
other liabilities, and requires only principal payments over five years.
Amortization is calculated using the shorter of the estimated useful life of the
products under the licensing agreement or the life of the patents covering the
technology used in the products, using the straight-line method. Amortization
expense and accumulated amortization was $221,667 at December 31, 1997.

The estimated useful lives and recorded values of all intangible assets are
periodically reviewed by management and adjusted to reflect any change in
anticipated lives or diminution in value.

Accrued Liabilities

Accrued liabilities consist of the following:

<TABLE>
<CAPTION>
                                          December 31,
                                    -----------------------
                                       1997         1996
                                    ----------   ----------
<S>                                 <C>          <C>       
Accrued payroll and payroll taxes   $1,126,400   $  912,292
Accrued marketing rights costs         380,000           -- 
Accrued clinical costs                 100,000      837,533
Other                                  335,515      633,873
                                    ----------   ----------

                                    $1,941,915   $2,383,698
                                    ==========   ==========
</TABLE>


                                      -3-
<PAGE>   15

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

New Accounting Pronouncements

The Financial Accounting Standards Board has issued Statement of Financial
Accounting Standards ("SFAS") No 130, "Reporting Comprehensive Income", which is
effective for fiscal years beginning after December 15, 1997. SFAS No. 130
requires that all items that are recognized under accounting standards as
components of comprehensive income be reported in a financial statement that is
displayed with the same prominence as other financial statements. Examples of
other comprehensive income include foreign currency items, unrealized gains and
losses on certain investments in debt and equity securities and minimum pension
liability adjustments. It is not anticipated that the adoption of this statement
will have a material effect on the financial statements of the Company.

2.       SHORT-TERM INVESTMENTS AND INVESTMENTS IN LONG-TERM SECURITIES

The Company classifies its investments in one of two categories:
held-to-maturity or available-for-sale. Held-to-maturity securities are those
securities in which the Company has the ability and intent to hold the security
until maturity. All other securities are classified as available-for-sale.

Held-to-maturity securities are recorded at amortized cost, adjusted for the
amortization of premiums or discounts. Premiums and discounts are amortized over
the life of the related security. Available-for-sale securities are recorded at
fair value based on general market valuations. Unrealized holding gains and
losses on available-for-sale securities are excluded from earnings and are
reported as a separate component of stockholders' equity until realized.

Short-term investments have a maturity of twelve months or less. Investments in
long-term securities generally mature in one to five years. Short-term
investments and investments in long-term securities consist of the following:

<TABLE>
<CAPTION>
                                              1997         1996
                                           ----------   ----------
<S>                                        <C>          <C>       
Short-term investments:

     Held-to-maturity, at amortized cost   $9,397,948   $4,097,419
                                           ==========   ==========

Investments in long-term securities:

     Held-to-maturity, at amortized cost   $3,001,938   $2,000,468
                                           ==========   ==========
</TABLE>

The amortized cost, gross unrealized holding gains, gross unrealized holding
losses and fair value for held-to-maturity securities by major security type at
December 31, 1997 and 1996, were as follows:

<TABLE>
<CAPTION>
                                                    Gross         Gross        Estimated
                                    Amortized    Unrealized     Unrealized       Fair
DECEMBER 31, 1997                      Cost         Gains        Losses          Value
                                   -----------   -----------   -----------   -----------
<S>                                <C>           <C>           <C>           <C>        
Held-to-maturity:
     U.S. government obligations   $ 1,000,000   $        --   $       900   $   999,100
     Corporate obligations          11,399,886        44,667         4,640    11,439,913
                                   -----------   -----------   -----------   -----------

                                   $12,399,886   $    44,667   $     5,540   $12,439,013
                                   ===========   ===========   ===========   ===========
</TABLE>

<TABLE>
<CAPTION>
                                                    Gross      Gross       Estimated
                                    Amortized    Unrealized  Unrealized     Fair
DECEMBER 31, 1996                     Cost         Gains       Losses       Value
                                   ----------   ----------   ----------   ----------
<S>                                <C>          <C>          <C>          <C>       
Held-to-maturity:
     U.S. government obligations   $2,001,663   $       --   $    1,063   $2,000,600
     Corporate obligations          4,096,224        2,239          780    4,097,683
                                   ----------   ----------   ----------   ----------
                                   $6,097,887   $    2,239   $    1,843   $6,098,283
                                   ==========   ==========   ==========   ==========
</TABLE>


                                      -4-
<PAGE>   16

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

During 1997, TheraTech purchased $12,411,000 in held-to-maturity securities.
Also during 1997, proceeds from the maturity of held-to-maturity securities were
$6,109,001. During 1996, the Company purchased $5,310,532 in held-to-maturity
securities and $208,509 in available-for-sale securities. Also during 1996,
proceeds from the maturity of held-to-maturity securities were $6,410,840 and
sales of available-for-sale securities were $3,474,128.

3.       INVENTORIES

Inventories are stated at the lower of cost or market applying the first-in,
first-out cost method. Inventories at December 31, 1997 and 1996, consist of the
following:

<TABLE>
<CAPTION>
                     1997         1996
                  ----------   ----------
<S>               <C>          <C>       
Raw materials     $2,568,690   $2,181,079
Work in process      148,801        9,552
Finished goods       112,779       86,390
                  ==========   ==========

                  $2,830,270   $2,277,021
                  ==========   ==========
</TABLE>

4.       NOTES PAYABLE AND LEASES

TheraTech has a 15 year term note which will mature in September 2009 with a
bank to finance its commercial manufacturing facility. TheraTech is required to
make monthly payments of principal and interest. Interest for the first 60
months is fixed at 8.99 percent and will be adjusted every 60 months based on
the five-year U.S. Treasury constant maturity rate. Based on the adjustable
interest rate, the carrying value of this note approximates fair value.

TheraTech has generally financed equipment by using promissory notes and leases.
Certain of these leases have been classified as capital lease obligations. At
December 31, 1997 and 1996, the gross amount of equipment recorded under capital
leases for both years was approximately $5,000,000. Accumulated amortization on
these assets at December 31, 1997 and 1996 was approximately $1,745,000 and
$985,000, respectively. At the expiration of the 60 month lease term, TheraTech
will have the option to purchase all the equipment or renew the lease for twelve
months and then: a) return the equipment, b) purchase the equipment at fair
market value or c) re-negotiate the lease. Additionally, TheraTech has notes
payable with a financial institution for certain equipment which have
outstanding balances totaling approximately $276,000, and which require monthly
payments of principal and interest sufficient to fully amortize the notes in
periods ranging from one to two years. The notes bear interest at rates between
8.68 and 9.12 percent.

Notes payable and capital lease obligations are secured by a building, equipment
(and during 1996, an interest bearing deposit classified as restricted cash)
with a total cost of approximately $14,300,000 at December 31, 1997. The various
financing agreements contain covenants among which require TheraTech to maintain
certain financial ratios and minimum cash balances and restrict dividend
payments. As of December 31, 1997, the Company was in compliance with these
covenants. The weighted average interest rate on notes payable was 8.94 percent
as of December 31, 1997.

TheraTech also has noncancellable operating leases for land, office and
laboratory space and equipment. The Company has a 40-year lease, with an option
to renew for an additional ten years, on approximately seven acres of land in
Salt Lake City, Utah on which the Company has constructed its manufacturing
facility. The Company also leases office and laboratory facilities in Salt Lake
City, Utah and in Tokyo, Japan. These leases expire in February and May 1999.
The lease on the Utah facility has two, one year renewal options and is subject
to adjustment based on a consumer price index. The lease on the Tokyo facility
has a renewal option of an additional two years. Future minimum payments of
these renewals are not reflected in the table below. Equipment leases are
generally for periods of three to five years and contain purchase options at
fair market value. Lease expense amounted to $1,140,552, $977,508 and $937,396
for the years ended December 31, 1997, 1996 and 1995, respectively.

Interest expense which approximates interest paid was $887,734, $1,060,076 and
$971,708 for the years ended December 31, 1997, 1996 and 1995, respectively.



                                      -5-
<PAGE>   17

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Future minimum capital lease payments, maturities of notes payable, other
liabilities and minimum lease payments under noncancellable operating leases at
December 31, 1997 are as follows:

<TABLE>
<CAPTION>
                                                      Capital
                                                       Lease          Notes      Other         Operating
Year ended December 31:                              Obligations     Payable   Liabilities     Leases
                                                      ----------   ----------   ----------   ----------
<S>                                                   <C>          <C>          <C>          <C>       
1998                                                  $1,099,111   $  547,265   $  380,000   $1,140,514
1999                                                   1,373,906      297,009      380,000      465,791
2000                                                     943,410      323,743      950,000      110,378
2001                                                          --      355,546      950,000       99,256
2002                                                          --      389,084    1,140,000       98,766
Thereafter                                                    --    3,770,187           --    2,995,902
                                                      ----------   ----------   ----------   ----------

                                                       3,416,427   $5,682,834   $3,800,000   $4,910,607
                                                                   ==========   ==========   ==========
Less amount representing imputed interest                440,563
                                                      ----------
Present value of net minimum capital lease payments    2,975,864
Less current portion of capital lease obligations        850,498
                                                      ----------

Capital lease obligations, less current portion       $2,125,366
                                                      ==========
</TABLE>

5.       COMMITMENTS AND CONTINGENCIES

TheraTech entered into a purchase commitment with a commercial supplier for
material used in its manufacturing process. Under this agreement, TheraTech was
to purchase, at predetermined prices, fixed quantities over four years. During
1997, TheraTech renegotiated a significant reduction in the purchase commitment
and added an option to pay a fixed fee instead of purchasing material. Amounts
paid to the supplier under the commitment were approximately $875,000 in 1995,
$1,392,000 in 1996 and $2,516,000 in 1997. In 1998, TheraTech has the option of
purchasing quantities of material totaling $1,750,032 or paying $800,000.

In the ordinary course of business, various suits and claims are filed by and
against TheraTech. In the past, TheraTech's liability claims have not been
significant. The Company is not a party to any litigation, other than legal and
arbitration proceedings which are believed to be ordinary or routine litigation
incidental to its business.

6.       STOCKHOLDERS' EQUITY

TheraTech is authorized to issue 5,000,000 shares of preferred stock, $0.01 par
value, none of which was outstanding at December 31, 1997 and 1996. The Board of
Directors may determine rights, preferences and privileges of any preferred
stock issued in the future.

Stock Option Plans

The Company has granted non-qualified stock options to officers, employees,
consultants and outside members of the Board of Directors. TheraTech also has an
incentive stock option plan for its employees (the "Employee Plan") and a stock
option plan for its directors (the "Director Plan") (together, the "Option
Plans"). In general, options granted under the Option Plans vest over zero to
five years and have maximum terms of 10 years. At December 31, 1997, a total of
2,812,500 shares of Common Stock were reserved for issuance under the Option
Plans of which 277,500 shares were reserved for issuance under the Director
Plan.

The Company has elected to continue to apply Accounting Principles Board Opinion
No. 25 "Accounting for Stock Issued to Employees" ("APB 25") and related
interpretations in accounting for its plans. The alternative fair value method
of accounting prescribed by Financial Accounting Standards Board No. 123,
"Accounting for Stock-Based Compensation" ("FAS 123") requires the use of option
valuation models that were not developed for use in valuing employee stock
options, as discussed below. Accordingly, under APB 25, no compensation expense
has been recognized for the stock option plans except compensation expense for
the difference between the grant price and the market value at the date of
grant. Compensation expense related to stock options was not material. 



                                      -6-
<PAGE>   18
                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


The Black-Scholes option valuation model was developed for use in estimating the
fair value of traded options which have no vesting restrictions and are fully
transferable. In addition, option valuation models require the input of highly
subjective assumptions including the expected stock price volatility. Because
the Company's stock options have characteristics significantly different from
those of traded options, and because changes in the subjective input assumptions
can materially affect the fair value, in management's opinion the existing
models do not necessarily provide a reliable single measure of the fair value of
the stock options. The fair value of each option grant is estimated on the date
of grant using the Black-Scholes option-pricing model with the following
assumptions: expected dividend yield, 0%; expected stock price volatility, 27.2%
- - 34.5%; risk-free interest rate, 5.5% - 6.7%; and average expected life of
options, 3.8 - 4.2 years. If compensation expense for the Company's stock-based
compensation plans had been determined consistent with FAS 123, the Company's
net income (loss) and net income (loss) per share would have been reduced to the
pro forma amounts indicated below:

<TABLE>
<CAPTION>
                                                                         Year Ended December 31,
                                                                 --------------------------------------------
                                                                    1997           1996              1995
                                                                 ----------      ----------      ------------
<S>                                                              <C>             <C>             <C>         
   Net income (loss)                          As reported        $5,850,749      $4,224,909      $(7,840,589)
                                              Pro forma           4,597,492       2,970,535       (8,884,776)
 
   Net income (loss) per share - basic        As reported             $0.28           $0.21           $(0.40)
                                              Pro forma                0.22            0.15            (0.45)

   Net income (loss) per share - diluted      As reported             $0.27           $0.20           $(0.40)
                                              Pro forma                0.21            0.14            (0.45)
</TABLE>

The effect of FAS 123 on pro forma net income (loss) and net income (loss) per
share disclosed for 1997, 1996 and 1995 may not be representative of the effects
on pro forma results in future years. The pro forma results for 1997, 1996 and
1995 include the impact of only three, two and one years, respectively, of
options vesting, while subsequent years will include additional years of
vesting.

A summary of the Company's stock option activity is as follows:

<TABLE>
<CAPTION>
                                          Weighted                Weighted                  Weighted
                            Year Ended    Average   Year Ended    Average     Year Ended    Average
                            December 31,  Exercise  December 31,  Exercise    December 31,  Exercise
                              1997         Price      1996         Price        1995        Price
                            ---------    ---------  ---------    ---------    ---------    --------
<S>                         <C>          <C>        <C>          <C>          <C>          <C>     
Balance at 
  beginning of period       2,830,514    $    6.84  3,090,420    $    5.70    3,053,595    $   4.65
Granted                       493,950         9.38    303,515        11.47      488,925        9.64
Exercised                    (379,650)        2.71   (519,321)        2.54     (377,025)       1.97
Canceled                      (47,425)       10.99    (44,100)        8.69      (75,075)       7.51
                            ---------    ---------  ---------    ---------    ---------    --------
Balance at end of period    2,897,389    $    7.75  2,830,514    $    6.84    3,090,420    $   5.70
                           ==========    =========  =========    =========    =========    ========

Exercisable                 2,368,461               2,300,635                 2,315,595

Weighted-average fair 
  value of options 
  granted during the year       $3.43                   $4.24                     $3.44
</TABLE>


                                      -7-
<PAGE>   19

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


The following summarizes information about stock options outstanding at December
31, 1997:

<TABLE>
<CAPTION>
                                        Options Outstanding                Options Exercisable
                             ----------------------------------------   -------------------------
                                              Weighted-
                                 Number       Average                    Number
                              Outstanding    Remaining      Weighted-   Exercisable     Weighted-
      Range of                     at        Contractual     Average        at          Average 
      Exercise                 December 31,   Life in       Exercise    December 31,    Exercise
      Prices                      1997         Years          Price        1997          Price
- ----------------------       --------------  -----------   ----------   -----------    ----------
<S>              <C>            <C>            <C>           <C>           <C>           <C>  
$0.83   to       6.00           927,677        3.22         $ 3.44         882,677      $ 3.48
 6.60   to      10.00         1,092,729        7.06           8.78         783,326        8.85
10.06   to      15.50           876,983        7.30          11.04         702,458       11.04
- ---------------------         ---------        ----         ------       ---------      ------  
$0.83   to      15.50         2,897,389        5.90         $ 7.75       2,368,461      $ 7.50
=====================         =========        ====         ======       =========      ======
</TABLE>


Employee Stock Purchase Plan

As part of an employee retention program, the Company established the 1992
Employee Stock Purchase Plan (the "Stock Purchase Plan") to provide employees
with an opportunity to purchase common stock of the Company through payroll
deductions. Accordingly, 300,000 shares of common stock were reserved for
issuance to eligible employees. This Stock Purchase Plan will terminate in the
year 2012 unless sooner terminated by the Board of Directors. Under this Stock
Purchase Plan, the Company's employees, subject to certain restrictions, may
purchase shares of common stock at the lesser of 85 percent of fair market value
at either the enrollment date or the exercise date. As of December 31, 1997,
under this plan 123,911 shares had been issued.

7.       NET INCOME (LOSS) PER SHARE

The following table sets forth the computation of basic and diluted net income
(loss) per share:

<TABLE>
<CAPTION>
                                              1997           1996           1995
                                          ------------   ------------   ------------
<S>                                       <C>            <C>            <C>          
Numerator:
Net income (loss) -- Numerator for
  basic and diluted net income 
  (loss) per share                        $  5,850,749   $  4,224,909   $ (7,840,589)
                                          ============   ============   ============

Denominator:
Denominator for basic net income
  (loss) per share - weighted average
  shares                                    20,778,060     20,291,513     19,789,460
Effect of dilutive securities:
  Stock options                                956,280      1,295,415             --
                                          ------------   ------------   ------------
Denominator for diluted net income
  (loss) per share - adjusted 
  weighted average shares and assumed 
  conversions                               21,734,340     21,586,928     19,789,460
                                          ============   ============   ============
Net income (loss) per share - basic       $       0.28   $       0.21   $      (0.40)
                                          ============   ============   ============
Net income (loss) per share - diluted     $       0.27   $       0.20   $      (0.40)
                                          ============   ============   ============
</TABLE>

Options to purchase an additional 1,101,208 shares of common stock were
outstanding during 1997 but were not included in the computation of diluted net
income (loss) per share because the options' exercise price was greater than the
average market price of the common shares, therefore, the effect would be
antidilutive.



                                       -8-
<PAGE>   20
                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


8.       RELATED PARTY TRANSACTIONS

One of the Company's principal stockholders and directors is affiliated with the
University of Utah ("the University"). In the normal course of business, the
Company has entered into various agreements with the University for research and
other services. Additionally, certain agreements provide for, but are not
limited to, the following terms: granting of exclusive licensing and marketing
rights to TheraTech, ownership of patents by the University and royalties
payable to the University ranging from 2 to 15 percent on royalties received by
the Company. The Company paid to a University department affiliated with the
principal stockholder and director $55,000, $57,500 and $18,393 for the years
ended December 31, 1997, 1996 and 1995, respectively.

As of December 31, 1997, TheraTech had two unsecured loans to officers of the
Company, an 8.0 percent note for $72,676 due November 25, 1998, and an 8.0
percent note for $73,227 which was fully paid in February 1998.

9.       401(k) AND NON-QUALIFIED DEFERRED COMPENSATION PLANS

The Company sponsors a 401(k) plan under which employees may defer a certain
percentage of their salary. The Company will match 75 percent of the employee's
contribution up to 8.5 percent of their salary. Employees who have completed six
months of service and who are at least 18 years of age are eligible to
participate. For the years ended December 31, 1997, 1996 and 1995, the 401(k)
plan expenses were $461,712, $288,161 and $206,371, respectively.

Additionally, effective December 1, 1997, the Company established a
non-qualified deferred compensation plan ("Non-Qualified Plan") for certain
executives of the Company. The Non-Qualified Plan enables participants to defer
income on a pre-tax basis and is not funded. The Company will match 75 percent
of the participant's contribution up to 8.5 percent of their salary, however,
the Company's combined contribution to both the 401(k) plan and the
Non-Qualified Plan will be based on an amount not to exceed 8.5% of the
participant's salary. For the year ended December 31, 1997, the Non-Qualified
Plan expenses were $29,382. As of December 31, 1997, the liability for deferred
compensation was $108,550.

10.      INCOME TAXES

As of December 31, 1997, TheraTech had federal and state net operating loss
carryforwards of approximately $39,000,000. The Company also has federal
research and development tax credit carryforwards of approximately $2,500,000.
The net operating loss and credit carryforwards will expire at various dates
beginning in years 2001 through 2012, if not utilized.

Deferred income taxes reflect the net tax 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 deferred tax assets are as follows:

<TABLE>
<CAPTION>
                                                       December 31,
                                               ----------------------------
                                                   1997            1996
                                               ------------    ------------
<S>                                            <C>             <C>         
 Deferred tax assets:
    Net operating loss carryforwards           $ 14,418,000    $ 15,473,000
    Research credits                              2,594,000       1,846,000
    Other, net                                      982,000       1,060,000
                                               ------------    ------------
    Total deferred tax assets                    17,994,000      18,379,000
 Valuation allowance for deferred tax assets    (17,994,000)    (18,379,000)
                                               ------------    ------------

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

The net valuation allowance decreased by $385,000, during the year ended
December 31, 1997.

As of December 31, 1997, and 1996, approximately $5,832,000 and $4,708,000,
respectively, of the valuation allowance for deferred tax assets relate to
benefits of stock option deductions which, when recognized, will be credited
directly to additional paid-in capital.



                                      -9-
<PAGE>   21

                                 THERATECH, INC.
                                -----------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table reconciles income tax at the U.S. federal statutory tax rate
to the tax provision at the effective tax rate:

<TABLE>
<CAPTION>
                                          1997      1996
                                       ---------    ----
<S>                                    <C>          <C>     
 Current:
    Federal                            $ 123,000      -- 
    State                                     --      -- 
                                       ---------    ----
    Total current                        123,000      -- 

 Deferred
    Federal                             (123,000)     -- 
    State                                     --      -- 
                                       ---------    ----
      Total deferred                    (123,000)     -- 
                                       ---------    ----

Provision (benefit) for income taxes   $      --    $ -- 
                                       =========    ====
</TABLE>

The reconciliation of income tax at the U.S. federal statutory tax rate to
income expense is as follows:

<TABLE>
<CAPTION>
                                             1997           1996
                                          -----------    -----------
<S>                                       <C>            <C>        
 Tax at U.S. statutory rates              $ 1,989,000    $ 1,436,000
 State tax, net of federal tax benefit        193,000        139,000
 Credits                                     (620,000)      (182,000)
 Adjustments of valuation allowance for
    Deferred tax assets                    (1,560,000)    (1,401,000)
 Other, net                                    (2,000)         8,000
                                          -----------    -----------

Income tax expense                        $        --    $        -- 
                                          ===========    ===========
</TABLE>


                                      -10-

<PAGE>   22

                         Report of Independent Auditors


The Board of Directors and Stockholders
TheraTech, Inc.

We have audited the accompanying consolidated balance sheets of TheraTech, Inc.
and subsidiaries as of December 31, 1997 and 1996, and the related consolidated
statements of operations, stockholders' equity and cash flows for each of the
three years in the period ended December 31, 1997. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits.

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 consolidated financial statements referred to above present
fairly, in all material respects, the consolidated financial position of
TheraTech, Inc. and subsidiaries at December 31, 1997 and 1996, and the
consolidated results of their operations and their cash flows for each of the
three years in the period ended December 31, 1997, in conformity with generally
accepted accounting principles.



                                        ERNST & YOUNG LLP
Salt Lake City, Utah
February 6, 1998


<PAGE>   1
                                                                    EXHIBIT 23.1




                         Consent of Independent Auditors

We consent to the incorporation by reference in this Annual Report (Form 10-K)
of TheraTech, Inc. of our report dated February 6, 1998, included in the 1997
Annual Report to Stockholders of TheraTech, Inc.

We also consent to the incorporation by reference in the Registration Statements
(Form S-8) pertaining to the 1992 Employees' Stock Option Plan, 1992 Directors'
Stock Option Plan and Informal Stock Option Program, and the 1993 Employee Stock
Purchase Plan of TheraTech, Inc. of our report dated February 6, 1998, with
respect to the consolidated financial statements of TheraTech, Inc. incorporated
by reference in the Annual Report (Form 10-K) for the year ended December 31,
1997.


                                            ERNST & YOUNG LLP
Salt Lake City, Utah
March 30, 1998

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A) THE
THERATECH, INC. CONSOLIDATED BALANCE SHEET AND STATEMENT OF OPERATIONS FOR THE
YEAR ENDED DECEMBER 31, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH (B) FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                      14,979,465
<SECURITIES>                                 9,397,948
<RECEIVABLES>                                4,847,106
<ALLOWANCES>                                    50,000
<INVENTORY>                                  2,380,270
<CURRENT-ASSETS>                            32,120,884
<PP&E>                                      27,543,422
<DEPRECIATION>                               8,225,341
<TOTAL-ASSETS>                              61,860,810
<CURRENT-LIABILITIES>                        7,410,427
<BONDS>                                      7,260,935
                                0
                                          0
<COMMON>                                       210,193
<OTHER-SE>                                  43,347,255
<TOTAL-LIABILITY-AND-EQUITY>                61,860,810
<SALES>                                     15,469,831
<TOTAL-REVENUES>                            39,749,619
<CGS>                                       10,639,550
<TOTAL-COSTS>                               32,961,879
<OTHER-EXPENSES>                                49,257
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             887,734
<INCOME-PRETAX>                              5,850,749
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          5,850,749
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 5,850,749
<EPS-PRIMARY>                                     0.28
<EPS-DILUTED>                                     0.27
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A) THE
THERATECH, INC. CONSOLIDATED BALANCE SHEET AND STATEMENT OF OPERATIONS FOR THE
YEAR ENDED DECEMBER 31, 1996 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH (B) FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                      19,116,991
<SECURITIES>                                 4,097,419
<RECEIVABLES>                                4,726,112
<ALLOWANCES>                                    91,034
<INVENTORY>                                  2,277,021
<CURRENT-ASSETS>                            30,253,670
<PP&E>                                      25,167,720
<DEPRECIATION>                               5,737,034
<TOTAL-ASSETS>                              53,846,802
<CURRENT-LIABILITIES>                        7,951,739
<BONDS>                                      8,660,744
                                0
                                          0
<COMMON>                                       205,634
<OTHER-SE>                                  35,816,685
<TOTAL-LIABILITY-AND-EQUITY>                53,846,802
<SALES>                                     11,296,298
<TOTAL-REVENUES>                            36,361,542
<CGS>                                        8,008,967
<TOTAL-COSTS>                               31,030,549
<OTHER-EXPENSES>                                46,009
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           1,060,075
<INCOME-PRETAX>                              4,224,090
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          4,224,909
<DISCONTINUED>                                       0
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