DURA PHARMACEUTICALS INC
10-Q, 1998-11-16
PHARMACEUTICAL PREPARATIONS
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<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 10-Q

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

       For the quarterly period ended September 30, 1998.


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

                        Commission File number 000-19809

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

         DELAWARE                               95-3645543
(State or other jurisdiction of              (I.R.S. Employer
incorporation or organization)               Identification Number)

7475 LUSK BLVD., SAN DIEGO, CALIFORNIA                        92121
(Address of principal executive offices)                 (Zip Code)


    REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE IS (619) 457-2553

         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.
         [ X ] Yes [ ] No

The number of shares of the Registrant's Common Stock outstanding as of October
30, 1998 was 46,372,348.


<PAGE>

PART I - FINANCIAL INFORMATION

ITEM 1.         FINANCIAL STATEMENTS

                           DURA PHARMACEUTICALS, INC.
                          CONSOLIDATED BALANCE SHEETS
                       IN THOUSANDS, EXCEPT SHARE AMOUNTS
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>

                                                                                  DECEMBER 31,  SEPTEMBER 30,
ASSETS                                                                                1997          1998
                                                                                  ------------  -------------
                                                                                                 (unaudited)
<S>                                                                                <C>            <C>
CURRENT ASSETS:
  Cash and cash equivalents                                                        $  72,003    $  57,482
  Short-term investments                                                             313,218      310,950
  Accounts and other receivables                                                      40,987       27,097
  Inventory                                                                           15,201       12,730
                                                                                  ------------  -------------
           Total current assets                                                      441,409      408,259


License agreements and product rights                                                250,781      286,320
Property                                                                              48,525       79,451
Other assets                                                                          34,165       38,675
                                                                                  ------------  -------------
TOTAL                                                                              $ 774,880    $ 812,705
                                                                                  ------------  -------------
                                                                                  ------------  -------------
LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES:

  Accounts payable and accrued liabilities                                         $  45,741    $  55,365
  Current portion of long-term obligations                                             2,798        2,948
                                                                                  ------------  -------------
           Total current liabilities                                                  48,539       58,313

Convertible subordinated notes                                                       287,500      287,500
Other long-term obligations                                                            9,564       13,426
                                                                                  ------------  -------------
           Total liabilities                                                         345,603      359,239

STOCKHOLDERS' EQUITY:
  Preferred stock, par value $.001; shares authorized - 5,000,000;
    no shares issued or outstanding
  Common stock, par value $.001; shares authorized - 200,000,000;
    issued and outstanding - 45,608,414 and 46,370,276, respectively                      46           46
  Additional paid-in capital                                                         604,991      608,596
  Accumulated other comprehensive income                                                 176          860
  Warrant subscriptions receivable                                                   (12,252)     (10,117)
  Accumulated deficit                                                               (163,684)    (145,919)
                                                                                  ------------  -------------
           Total stockholders' equity                                                429,277      453,466
                                                                                  ------------  -------------
TOTAL                                                                              $ 774,880    $ 812,705
                                                                                  ------------  -------------
                                                                                  ------------  -------------
</TABLE>

See accompanying notes to consolidated financial statements.

                                         2
<PAGE>

                           DURA PHARMACEUTICALS, INC.
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                     IN THOUSANDS, EXCEPT PER SHARE AMOUNTS
                                  (UNAUDITED)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>

                                                      THREE MONTHS ENDED         NINE MONTHS ENDED
                                                           SEPTEMBER 30,           SEPTEMBER 30,
                                                     --------------------    ----------------------
                                                         1997        1998         1997         1998
                                                     ----------------------------------------------
     <S>                                             <C>         <C>         <C>          <C>
     REVENUES:
       Sales                                         $ 36,098    $ 24,961    $ 105,437    $  95,759
       Contract                                         7,245      18,402       22,430       48,308
                                                     --------    --------    ---------    ---------
                Total revenues                         43,343      43,363      127,867      144,067
                                                     --------    --------    ---------    ---------

     OPERATING COSTS AND EXPENSES:
       Cost of sales                                    7,426       5,798       23,373       21,348
       Clinical, development and regulatory             5,807      11,298       18,160       32,375
       Selling, general and administrative             16,733      25,224       49,485       70,685
                                                     --------    --------    ---------    ---------
                Total operating costs and expenses     29,966      42,320       91,018      124,408
                                                     --------    --------    ---------    ---------
     OPERATING INCOME                                  13,377       1,043       36,849       19,659
                                                     --------    --------    ---------    ---------
     OTHER:
       Interest income                                  5,058       5,578       11,437       16,931
       Interest expense                                (2,242)     (2,945)      (2,531)      (9,155)
       Other - net                                        (14)          1           (3)        (504)
                                                     --------    --------    ---------    ---------
                Total other                             2,802       2,634        8,903        7,272
                                                     --------    --------    ---------    ---------
     INCOME BEFORE INCOME TAXES                        16,179       3,677       45,752       26,931
     PROVISION FOR INCOME TAXES                         4,854       1,253       16,357        9,166
                                                     --------    --------    ---------    ---------
     NET INCOME                                      $ 11,325    $  2,424    $  29,395    $  17,765
                                                     --------    --------    ---------    ---------
                                                     --------    --------    ---------    ---------
     NET INCOME PER SHARE:
       Basic                                         $   0.26    $   0.05    $    0.67    $    0.38
                                                     --------    --------    ---------    ---------
                                                     --------    --------    ---------    ---------
       Diluted                                       $   0.24    $   0.05    $    0.62    $    0.37
                                                     --------    --------    ---------    ---------
                                                     --------    --------    ---------    ---------
     WEIGHTED AVERAGE NUMBER OF
       COMMON SHARES:
       Basic                                           43,875      46,367       43,633       46,216
                                                     --------    --------    ---------    ---------
                                                     --------    --------    ---------    ---------
       Diluted                                         47,606      47,578       47,392       47,647
                                                     --------    --------    ---------    ---------
                                                     --------    --------    ---------    ---------
</TABLE>

See accompanying notes to consolidated financial statements.

                                         3
<PAGE>

                           DURA PHARMACEUTICALS, INC.
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                  IN THOUSANDS
                                  (UNAUDITED)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>

                                                               NINE MONTHS ENDED
                                                                  SEPTEMBER 30,
                                                            ----------------------
                                                                1997         1998
                                                            ----------------------
     <S>                                                    <C>          <C>
     NET CASH PROVIDED BY OPERATING ACTIVITIES              $  44,504    $  56,628
                                                            ----------   ---------
     INVESTING ACTIVITIES:
       Purchases of short-term investments                   (335,983)    (277,617)
       Sales and maturities of short-term investments         157,334      280,569
       Product acquisitions                                   (71,973)     (40,223)
       Capital expenditures                                   (18,757)     (34,627)
       Issuance of convertible note receivable                      0       (5,000)
       Other                                                      842         (583)
                                                            ----------   ---------

                Net cash used for investing activities       (268,537)     (77,481)
                                                            ----------   ---------
     FINANCING ACTIVITIES:
       Issuance of common stock and warrants - net              4,840        6,332
       Issuance of convertible subordinated notes, net        278,175            0
       Principal payments on long-term obligations            (23,500)           0
                                                            ----------   ---------
                Net cash provided by financing activities     259,515        6,332
                                                            ----------   ---------
     NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS      35,482      (14,521)
     CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD         131,101       72,003
                                                            ----------   ---------

     CASH AND CASH EQUIVALENTS AT END OF PERIOD             $ 166,583    $  57,482
                                                            ----------   ---------
                                                            ----------   ---------

     SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

       Cash paid during the period for:
         Interest (net of amounts capitalized)              $     206    $  11,312
         Income taxes                                       $   1,215    $   5,890

</TABLE>

See accompanying notes to consolidated financial statements.

                                         4
<PAGE>


                           DURA PHARMACEUTICALS, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (UNAUDITED)

1.         BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements have been 
prepared by Dura Pharmaceuticals, Inc. ("Dura" or the "Company") in 
accordance with the instructions to Form 10-Q. The consolidated financial 
statements reflect all adjustments, consisting of only normal recurring 
accruals, which are, in the opinion of management, necessary for a fair 
statement of the results of the interim periods presented. These consolidated 
financial statements and notes thereto should be read in conjunction with the 
audited financial statements and notes thereto included in the Company's 1997 
Annual Report to Shareholders, which statements and notes are incorporated by 
reference in the Company's Annual Report on Form 10-K for the year ended 
December 31, 1997. The results of operations for the interim periods are not 
necessarily indicative of results to be expected for any other interim period 
or for the year as a whole.

The consolidated financial statements include the accounts of Dura and its 
wholly owned subsidiaries. All intercompany transactions and balances are 
eliminated in consolidation. Certain reclassifications have been made to 
amounts included in the prior year's financial statements to conform to the 
financial statement presentation for the three months and nine months ended 
September 30, 1998.

The preparation of financial statements in conformity with generally accepted 
accounting principles requires management to make estimates and assumptions 
that affect amounts reported in the consolidated financial statements and 
related notes. Changes in those estimates may affect amounts reported in 
future periods.

2.       NEW ACCOUNTING STANDARD

Effective January 1, 1998, the Company adopted Statement of Financial 
Accounting Standards No. 130, "Reporting Comprehensive Income" ("SFAS 130"). 
SFAS 130 requires reporting and displaying comprehensive income and its 
components which, for Dura, includes net income and unrealized gains and 
losses on investments. In accordance with SFAS 130, the accumulated balance 
of other comprehensive income is disclosed as a separate component of 
shareholders' equity. Prior year financial statements have been reclassified 
to conform to the requirements of SFAS 130.

                                         5
<PAGE>

 For the three months and nine months ended September 30, 1997 and 1998,
comprehensive income consisted of (in thousands):

<TABLE>
<CAPTION>

                                                     Three Months Ended                  Nine Months Ended
                                                        September 30,                      September 30,
                                                   1997              1998             1997              1998
                                                   ----              ----             ----              ----
     <S>                                           <C>            <C>                <C>              <C>
     Net income                                    $11,325        $2,424             $29,395          $17,765
     Other comprehensive income:
              Unrealized gain on
                investments                            119              767              233              684
                                                ----------         --------       ----------      -----------
     Comprehensive income                          $11,444           $3,191          $29,628          $18,449
                                                ----------         --------       ----------      -----------
                                                ----------         --------       ----------      -----------
</TABLE>

3. LICENSE AGREEMENTS AND PRODUCT RIGHTS

On August 3, 1998, the Company acquired from an affiliate of American Home
Products ("AHP") exclusive U.S. marketing rights to the single-source
tuberculosis drug Myambutol-Registered Trademark-. The purchase price
consisted of a $33.5 million cash payment made at closing, plus additional
payments over the next four years based upon net sales of Myambutol during
that period. Based on historical sales data for Myambutol provided by AHP,
the Company estimates that such future payments could approximate $50 million.

4. CAPITAL STOCK

COMMON STOCK.On May 21, 1998, the Company's stockholders approved an 
amendment to the Company's Certificate of Incorporation increasing the number 
of authorized shares of Common Stock from 100 million to 200 million.

SHAREHOLDER RIGHTS PLAN. In May 1998, the Company adopted a Shareholder Rights
Plan in which Preferred Stock purchase rights ("Rights") were distributed as a
dividend at the rate of one Right for each share of Common Stock held as of the
close of business on June 5, 1998. Each Right entitles stockholders to buy, upon
certain events, one one-thousandth of a share of a new series of junior
participating Preferred Stock of the Company at an exercise price of $175.00.
The Rights are designed to guard against partial tender offers and other abusive
tactics that might be used in an attempt to gain control of the Company or to
deprive stockholders of their interest in the long-term value of the Company.
The Rights are exercisable only if a person or group acquires 15% or more of the
Company's Common Stock or announces a tender offer of which the consummation
would result in ownership by a person or group of 15% or more of the Company's
Common Stock. The Rights are redeemable for one cent per Right at the option of
the Board of Directors prior to this event occurring. The Rights expire on June
5, 2008.

5. COMMITMENTS AND CONTINGENCIES

TERMINATION OF MERGER AGREEMENT WITH SCANDIPHARM, INC. On December 1, 1997, the
Company terminated a merger agreement with Scandipharm, Inc. ("Scandipharm")
entered into on October 20, 1997. On January 16, 1998, Scandipharm filed suit
against the Company for breach of 

                                         6
<PAGE>

contract. On January 19, 1998, the Company filed suit against Scandipharm 
seeking a declaratory judgment that Dura's termination of the merger 
agreement did not breach the agreement and for damages against Scandipharm. 
The Company believes that it had the right to terminate the merger agreement, 
that Scandipharm's claims in its lawsuit and its claims for damages are 
without merit, and the outcome of this matter will not have a material 
adverse effect on the Company's operations.

ACQUISITION OF SPIROS DEVELOPMENT CORPORATION. On December 19, 1997, the Company
acquired all of the outstanding callable common stock of Spiros Development
Corporation. The Company is in the process of determining the appropriate values
to be assigned to the assets and liabilities assumed in the acquisition. The
Company's estimate of these values is subject to revision upon completion of its
evaluation which may result in an adjustment to the amount recorded in 1997 for
the acquisition of in-process technology.

6. SUBSEQUENT EVENTS

On October 1, 1998, DJ Pharma, Inc. ("DJ") exercised its option under the 
July 28, 1998 Co-promotion and Option Agreement with Dura to acquire the 
Rondec product line, Keftab, and certain cough, cold and allergy products 
from the Company. As consideration for the products, the Company received a 
secured note receivable and is entitled to receive a percentage of the net 
sales of certain of the products over a four year period. Dura has committed 
to providing DJ a $5 million loan upon the closing by DJ of an aggregate 
equity offering of not less than $15 million.

COMMON STOCK REPURCHASE. On October 12, 1998, the Board of Directors authorized
the Company to repurchase up to $50 million of the Company's common stock. Any
repurchases made under the program are expected to be funded from existing cash
and short- term investments.

                                         7
<PAGE>

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

This information should be read in conjunction with the consolidated financial
statements and the notes thereto included in Item 1 of this Quarterly Report and
the audited financial statements and notes thereto and Management's Discussion
and Analysis of Financial Condition and Results of Operations for the year ended
December 31, 1997 contained in the Company's 1997 Annual Report to Shareholders,
which is incorporated by reference in the Company's Annual Report on Form 10-K
for the year ended December 31, 1997. See "Risks and Uncertainties" below for a
discussion of factors known to the Company that could cause reported financial
information not to be necessarily indicative of future results, including
discussion of the effects of seasonality on the Company. The Company undertakes
no obligation to release publicly any revisions to any forward-looking
statements contained in this report to reflect events and circumstances arising
after the date of this report.

RECENT DEVELOPMENTS

On November 4, 1998, Dura and Spiros Development Corporation II, Inc. 
("Spiros Corp. II") announced the receipt of a complete response letter from 
the U.S. Food and Drug Administration ("FDA") indicating that the new drug 
application ("NDA") submitted by Dura on behalf of Spiros Corp. II for the 
use of albuterol with the Spiros system ("Albuterol Spiros-TM- is not 
approvable until and unless certain deficiencies are addressed. The FDA has 
requested additional clinical trials on the to-be-marketed Spiros inhaler in 
order to ensure inhaler reliability and replicate clinical outcomes of the 
initial trials. The FDA has also requested the resolution of a number of 
chemistry, manufacturing, and control issues. The letter also raised certain 
issues regarding electromechanical reliability. During the clinical trials, 
Dura made improvements to the Spiros inhaler which it believes have addressed 
these issues. Representatives from Dura and the FDA are scheduled to meet to 
develop a mutually agreed upon plan to resolve these issues.

On September 23, 1998, the Company announced its collaboration with Eli Lilly 
and Company ("Lilly") to develop pulmonary delivery technology for insulin 
products under a previously established agreement. The product under 
development is based on the Company's proprietary Spiros-Registered 
Trademark- pulmonary drug delivery technology for proteins and peptides. 
Under the terms of the agreement, the Company received an up-front payment 
and will receive funding for research as well as additional payments if 
defined milestones are achieved. In addition, the Company will receive 
royalties and manufacturing payments on products that reach the market. Lilly 
has received worldwide commercialization rights for any resulting inhaled 
insulin products.

On August 3, 1998, the Company acquired from an affiliate of AHP exclusive U.S.
marketing rights to the single-source tuberculosis drug Myambutol. The purchase
price consisted of a $33.5 million cash payment made at closing, plus additional
payments over the next four years based upon net sales of Myambutol during that
period. Based on historical sales data for Myambutol provided by AHP, the
Company estimates that such future payments could approximate an aggregate of
$50 million.

                                         8
<PAGE>

RESULTS OF OPERATIONS

THREE MONTHS ENDED SEPTEMBER 30, 1997 AND 1998

Total revenues for the three months ended September 30, 1998 were $43.4 million,
unchanged from the same period in 1997. Net income for the three months ended
September 30, 1998 was $2.4 million, or $0.05 per diluted share, a decrease of
$8.9 million, or $0.19 per diluted share, from the same period in 1997. The
principal factors causing this change are discussed below.

Pharmaceutical sales for the three months ended September 30, 1998 were $25 
million, a decrease of $11.1 million, or 31%, over the same period in 1997. 
The decrease is due in part to a decline in sales of certain of the Company's 
cough, cold and allergy products resulting from lower prescription volume for 
such products. In addition, the sales of certain other products declined 
during the three months ended September 30, 1998 as compared to the same 
period in 1997 due to differences between the periods in wholesaler buying 
patterns. These decreases were partially offset by increases in sales of 
Myambutol, acquired in August 1998.

Gross profit (pharmaceutical sales less cost of sales) for the three months
ended September 30, 1998 was $19.2 million, a decrease of $9.5 million, or 33%,
as compared to the same period in 1997. This decrease is due to the decrease in
pharmaceutical sales discussed above. Gross profit as a percentage of sales was
77% for the three months ended September 30, 1998 compared to 79% for the same
period in 1997. 

Contract revenue relates primarily to amounts received by the Company for the 
development of Spiros, the Company's proprietary dry powder pulmonary drug 
delivery system. Pursuant to agreements with several companies, the Company 
conducts feasibility testing and development work on various compounds for 
use with Spiros. Contract revenues include payment for feasibility and 
development work performed by the Company as well as milestone and technology 
access payments. Contract revenue for the three months ended September 30, 
1998 was $18.4 million, an increase of $11.2 million, or 154%, over the same 
period in 1997. This increase is due to increased development activity 
conducted primarily on behalf of Spiros Corp. II and Eli Lilly and Company 
("Lilly"). Contract revenues from Spiros- related development and feasibility 
agreements totaled $17.5 million for the three months ended September 30, 
1998 as compared to $6.7 million for the same period in 1997, including $12.6 
million from Spiros Corp. II as compared to $6.1 million from Spiros 
Development Corporation for the same period in 1997. Contract revenues from 
Lilly totaled $4.8 million for the three months ended September 30, 1998 as 
compared to $191,000 for the same period in 1997. Contract revenue may 
fluctuate from period to period base on the achievement of milestones and 
technology access payments from new partners.


                                         9
<PAGE>

Clinical, development and regulatory expenses for the three months ended
September 30, 1998 were $11.3 million, an increase of $5.5 million, or 95%, over
the same period in 1997. The increase reflects additional expenses incurred by
the Company under feasibility and development agreements covering the use of
various compounds with Spiros as discussed above.

Selling, general and administrative expenses for the three months ended 
September 30, 1998 were $25.2 million, an increase of $8.5 million, or 51%, 
over the same period in 1997, and increased as a percentage of total revenues 
to 58% for the three months ended September 30, 1998 as compared to 39% for 
the same period in 1997. The dollar and percentage increases are primarily 
due to increased costs associated with expanding the Company's sales force 
(increase of $7.5 million) and increases in operating costs related to 
general corporate activities (increase of $612,000). During 1998, the Company 
has expanded its sales force from approximately 270 representatives to 
approximately 400 representatives as of September 30, 1998. The rapid 
expansion of the Company's sales force has resulted in an increase in fiscal 
1998 in its selling, general, and administrative expenses, both in total and 
as a percentage of revenues, as compared to fiscal 1997.

Interest expense for the three months ended September 30, 1998 was $2.9 million,
an increase of $703,000, or 31%, as compared to the same period in 1997. The
increase is due to interest expense on the Notes issued in July 1997 (see
"Liquidity and Capital Resources" below).

The Company records interim provisions for income taxes based on the estimated
effective combined tax rate to be applicable for the fiscal year.  This
estimate is reevaluated by management each quarter based on forecasts of income
before income taxes for the year as well as anticipated adjustments from
statutory federal and state tax rates. The Company's effective tax rate for
the three months ended September 30, 1998 was 34%, compared to 30% for the same
period in 1997. During the quarter ended September 30, 1997, the Company
reduced its estimate of the combined effective tax rate for fiscal 1997 from
39% to 36%, resulting in an effective tax rate of 30% for the third quarter.

NINE MONTHS ENDED SEPTEMBER 30, 1997 AND 1998

Total revenues for the nine months ended September 30, 1998 were $144.1 million,
an increase of $16.2 million, or 13%, over the same period in 1997. Net income
for the nine months ended September 30, 1998 was $17.8 million, or $0.37 per
diluted share, a decrease of $11.6 million, or $0.25 per diluted share, from the
same period in 1997. The principal factors causing these changes are discussed
below.

Pharmaceutical sales for the nine months ended September 30, 1998 were
$95.8 million, a decrease of $9.7 million, or 9%, over the same period in 1997.
This decrease is primarily due to a decline in sales of certain of the Company's
cough, cold and allergy products resulting from lower prescription volume for
such products, partially offset by an increase in sales of Nasarel-Registered
Trademark- and Nasalide-Registered Trademark-, acquired in May 1997, and
Myambutol, acquired in August 1998.

                                         10
<PAGE>

Gross profit (pharmaceutical sales less cost of sales) for the nine months 
ended September 30, 1998 was $74.4 million, a decrease of $7.7 million, or 
9%, as compared to the same period in 1997. This decrease is due to the 
decrease in pharmaceutical sales discussed above. Gross profit as a 
percentage of sales was 78% for the nine months ended September 30, 1998 and 
1997.

Contract revenue relates primarily to amounts received by the Company for the 
development of Spiros, the Company's proprietary dry powder pulmonary drug 
delivery system. Pursuant to agreements with several companies, the Company 
conducts feasibility testing and development work on various compounds for 
use with Spiros. Contract revenues include payment for feasibility and 
development work performed by the Company as well as milestone and technology 
access payments. Contract revenue for the nine months ended September 30, 
1998 was $48.3 million, an increase of $25.9 million, or 115%, over the same 
period in 1997. This increase is due to increased development activity 
conducted on behalf of Spiros Corp. II and Lilly. Contract revenue from 
Spiros- related development and feasibility agreements for the nine months 
ended September 30, 1998 totaled $47 million as compared to $21.3 million for 
the same period in 1997, including $35.6 million from Spiros Corp. II as 
compared to $18.3 million from Spiros Development Corporation for the same 
period in 1997. Contract revenues from Lilly totaled $9.6 million for the 
nine months ended September 30, 1998 as compared to $214,000 for the same 
period in 1997. Contract revenue may fluctuate from period to period based on 
the achievement of milestones and technology access payments from new 
partners.

Clinical, development and regulatory expenses for the nine months ended
September 30, 1998 were $32.4 million, an increase of $14.2 million, or 78%,
over the same period in 1997. The increase reflects additional expenses incurred
by the Company under feasibility and development agreements covering the use of
various compounds with Spiros as discussed above.

Selling, general and administrative expenses for the nine months ended 
September 30, 1998 were $70.7 million, an increase of $21.2 million, or 43%, 
over the same period in 1997, and increased as a percentage of total revenues 
to 49% for the nine months ended September 30, 1998 as compared to 39% for 
the same period in 1997. The dollar and percentage increases are primarily 
due to increased costs incurred to support the Company's sales and contract 
revenue, including costs associated with expanding the Company's sales force 
(increase of $18.9 million), amortization of newly acquired product rights 
(increase of $564,000) and increases in operating costs related to general 
corporate activities (increase of $2 million). During 1998, the Company has 
expanded its sales force from approximately 270 representatives to 
approximately 400 representatives as of September 30, 1998. The rapid 
expansion of the Company's sales force has resulted in an increase in fiscal 
1998 in its selling, general, and administrative expenses, both in total and 
as a percentage of revenues, as compared to fiscal 1997.

Interest income for the nine months ended September 30, 1998 was $16.9 
million, an increase of $5.5 million, or 48%, as compared to the same period 
in 1997. The increase is due to higher balances of cash and short-term 
investments during the nine months ended September 30, 1998 resulting 
primarily from the investment of the net proceeds of the Notes offering in 
the third quarter of 1997 (see "Liquidity and Capital Resources" below).


                                         11
<PAGE>

Interest Expense for the nine months ended September 30, 1998 was $9.2 million,
an increase of $6.6 million, or 262%, as compared to the same period in 1997.
The increase is due to interest expense on the Notes (see "Liquidity and
Capital Resources" below).

The Company records interim provisions for income taxes based on the estimated
effective combined tax rate to be applicable for the fiscal year. This estimate
is reevaluated by management each quarter based on forecasts of income before
income taxes for the year as well as anticipated adjustments from statutory
federal and state tax rates. The Company's effective tax rate for the nine
months ended September 30, 1998 was 34%, compared to 36% for the same period in
1997. This reduction is due primarily to an increase in 1998 in income earned at
foreign subsidiaries which is taxed at lower rates.

LIQUIDITY AND CAPITAL RESOURCES

Cash, cash equivalents and short-term investments decreased by $16.8 million to
$368.4 million at September 30, 1998 from $385.2 million at December 31, 1997.
The decrease is due primarily to cash used for the purchase of Myambutol in
August 1998 and for capital expenditures, offset by cash generated by
operations. Working capital decreased by $42.9 million to $349.9 million at
September 30, 1998 from $392.9 million at December 31, 1997.

On October 12, 1998, the Board of Directors authorized the Company to 
repurchase up to $50 million of the Company's common stock. Any repurchases 
made under the program are expected to be funded from existing cash and 
short-term investments.

In the third quarter of 1997, the Company issued $287.5 million principal amount
of 3 1/2% Convertible Subordinated Notes ("Notes") due July 15, 2002 with
interest payable semiannually. Proceeds from the offering of the Notes are
expected to be used for general corporate purposes, including (i) to acquire,
in-license, co-promote, develop and commercialize pharmaceuticals targeted at
the Company's physician base or in areas related or otherwise complementary to
its existing business; (ii) to fund Spiros development programs; and (iii) for
working capital and facilities expansion. The Notes are convertible, at the
option of the holder, into shares of Dura's Common Stock at any time prior to
maturity or redemption at a conversion price of $50.635 per share.

In addition to the Notes, as of September 30, 1998, the Company had 
outstanding an aggregate of $16.4 million in current and other long-term 
obligations, of which $2.9 million is to be paid during the next 12 months. 
Also as of September 30, 1998, future contingent obligations existed relating 
to product acquisitions. Payments totaling approximately $50 million are 
contingent upon the levels of future sales of certain products, and 
approximately $80 million are contingent upon the continued absence of 
competing formulations of certain products as defined in the respective 
agreements. Such contingent obligations are payable through 2004, including 
approximately $30 million due within the next 12 months.

                                         12
<PAGE>

The Company has entered into a loan agreement which provides for the borrowing
of up to $50 million, subject to maintaining certain financial ratios, through 
May 1, 1999. As of September 30, 1998, no borrowings were or have been 
outstanding under this agreement.

The Company anticipates that its existing capital resources, together with cash
expected to be generated from operations and available bank borrowings, will be
sufficient to finance its operations and working capital through at least the
next 12 months. Significant additional resources, however, may be required in
connection with product or company acquisitions or in-licensing opportunities.
There can be no assurance that such additional resources will be available to
the Company when needed or on terms acceptable to the Company. At present, the
Company is actively pursuing the acquisition of rights to products and/or
companies which may require the use of substantial capital resources; however
there are no present agreements or commitments with respect to such
acquisitions.

YEAR 2000

The Company utilizes computer systems throughout its business to carry out
its day-to-day operations. Beginning in 1997, the Company implemented a 
program to ensure that its operations would not be adversely impacted by an 
inability of its computer operating systems to process data having dates on or 
after January 1, 2000 ("Year 2000"). The program includes an assessment of 
the Company's information technology ("IT") systems as well as technology 
systems embedded in the Company's facilities and equipment ("Non-IT").

The first phase in the Company's Year 2000 program was to identify the IT and 
Non-IT systems with Year 2000 exposure. This phase was completed during 1998. 
Substantially all the hardware and software comprising the Company's IT 
systems were replaced in 1997 with systems that are Year 2000 compliant. 
Accordingly, no further evaluation or testing of these systems is required. 
The Company is currently evaluating its Non-IT systems to assess whether they 
are Year 2000 compliant or, if not, whether the systems will be impacted by 
the change in year. The Company will not be able to assess what, if any, 
remediation to its Non-IT systems will be necessary until the evaluation 
phase is complete.

The Company has contacted its significant suppliers, customers, and key 
business partners to determine the extent to which the Company's business may 
be affected in the event these parties fail to address their Year 2000 
issues. The Company intends to monitor the progress made by these parties and 
to include in its remediation and contingency plan steps to address any risks 
arising from their failure to adequately prepare for the Year 2000. In 
addition, the Company will test key interfacing data systems with its 
business partners to ensure that all measures taken to become Year 2000 
compliant are effective.

The Company will develop a contingency plan to address any Year 2000 
exposures from internal and third-party systems that may not be adequately 
remediated or replaced. While it is difficult to identify all potential Year 
2000 exposures, the greatest risks to the Company are an inability to receive 
and process orders from its customers or for its vendors to supply product 
inventory. If necessary, the Company's contingency plan will include steps to 
address these risks such as identification of alternative suppliers, stocking 
of inventory supply, and developing back-up systems to process sales orders.

Management expects to complete its Year 2000 evaluation, testing and 
contingency planning by June 30, 1999. The Company estimates that the 
aggregate costs of its Year 2000 program will be less than $1 million, 
including costs incurred to date. This estimate excludes the cost of the IT 
systems implemented in 1997 as the implementation was not in response to the 
Year 2000 issue. The majority of these costs are not expected to be 
incremental expenses but rather an allocation of existing resources. The 
estimated impact, cost, and timing of the Company's Year 2000 program are 
based on management's best estimate using information currently 
available. However, there can be no guarantee that these estimates will be 
achieved and actual results could differ materially from those plans.

RISKS AND UNCERTAINTIES

FORWARD-LOOKING STATEMENTS. The Company cautions readers that the statements in
this Quarterly Report that are not descriptions of historical facts may be
forward-looking statements that are subject to risks and uncertainties. Actual
results could differ materially from those currently anticipated due to a number
of factors, including those identified below.

REDUCTION IN GROSS MARGINS. There is no proprietary protection for most of the
products sold by Dura and substitutes for such products are sold by other
pharmaceutical companies. The average selling prices for many of the Company's
products may decline over time due to competitive and reimbursement pressures.
While Dura will seek to mitigate the effect of this decline in average selling
prices, there can be no assurance that Dura will be successful in these efforts.

                                         13
<PAGE>

THIRD-PARTY REIMBURSEMENT; PRICING PRESSURES. The Company's commercial success
will depend in part on the availability of adequate reimbursement from
third-party healthcare payors, such as government and private health insurers
and managed care organizations. Third-party payors are increasingly challenging
the pricing of medical products and services. There can be no assurance that
reimbursement will be available to enable the Company to achieve market
acceptance of its products or to maintain price levels sufficient to realize an
appropriate return on the Company's investment in product acquisition,
in-licensing and development. The market for the Company's products may be
limited by actions of third-party payors. For example, many managed healthcare
organizations are now controlling the pharmaceuticals that are on their
formulary lists. The resulting competition among pharmaceutical companies to
place their products on these formulary lists has created a trend of downward
pricing pressure in the industry. In addition, many managed care organizations
are pursuing various ways to reduce pharmaceutical costs and are considering
formulary contracts primarily with those pharmaceutical companies that can offer
a full line of products for a given therapy sector or disease state. There can
be no assurance that the Company's products will be included on the formulary
lists of managed care organizations or that downward pricing pressure in the
industry generally will not negatively impact the Company's operations.

DEPENDENCE ON ACQUISITION OF RIGHTS TO PHARMACEUTICALS. Dura's strategy for 
growth is dependent, in part, upon acquiring, in-licensing and co-promoting 
pharmaceuticals to targeted physicians. Other companies, including those with 
substantially greater resources, are competing with Dura for the rights to 
such products. There can be no assurance that Dura will be able to acquire, 
in-license or co-promote additional pharmaceuticals on acceptable terms, if 
at all. The failure to acquire, in-license, co-promote, develop or market 
commercially successful pharmaceuticals would have a material adverse effect 
on the Company's operations. Furthermore, there can be no assurance that 
Dura, once it has obtained rights to a pharmaceutical and committed to 
payment terms, will be able to generate sales sufficient to create a profit 
or otherwise avoid a loss on such product.

DEVELOPMENT RISKS ASSOCIATED WITH SPIROS. Spiros will require significant 
additional development efforts. There can be no assurance that development of 
Spiros will be completed successfully, that Spiros will not encounter 
problems in clinical trials that will cause the delay or suspension of such 
trials, that current or future testing will show any Spiros product to be 
safe or efficacious or that any Spiros product will receive regulatory 
approval in a timely manner, if at all. In addition, regulatory approvals 
will have to be obtained for each drug to be delivered through the use of 
Spiros prior to commercialization. Moreover, even if Spiros does receive 
regulatory approval, there can be no assurance that Spiros will be 
commercially successful, have all of the patent and other protections 
necessary to prevent competitors from producing similar products and not 
infringe on patent or other proprietary rights of third parties. On November 
4, 1998, Dura and Spiros Corp. II announced the receipt of a complete 
response letter from the FDA (the "FDA Letter") relating to the Albuterol 
Spiros-TM- NDA filed by Dura on behalf of Spiros Corp. II in November 1997. 
The FDA Letter indicated that the NDA was not approvable until and unless 
certain deficiencies are addressed, and raised issues including but not 
limited to chemistry, manufacturing and control, and electromechanical 
properties and reliability of the inhaler. 


                                         14
<PAGE>

The FDA has indicated that an additional clinical trial or trials will be 
necessary to address the issues raised in the FDA Letter. Such trial or 
trials may be costly and time-consuming. There can be no assurance that such 
trial or trials will be successful, and/or that regulatory approval of the 
Albuterol Spiros-TM- product will be obtained. In any event, conduct of such 
additional trials would result in a substantial delay in the marketing 
approval and launch, if any, of the Albuterol Spiros-TM-product (see 
"Government Regulation; No Assurance of FDA Approval" below). The failure of 
any Spiros product to receive timely regulatory approval and achieve 
commercial success would have a material adverse effect on the Company's 
operations.

CUSTOMER CONCENTRATION; CONSOLIDATION OF DISTRIBUTION NETWORK. The distribution
network for pharmaceutical products is largely controlled by a few large
wholesale distributors, and, in recent years, the number of independent and
small chain drug stores has decreased. Further consolidation among, or any
financial difficulties of, distributors or retailers could result in the
combination or elimination of warehouses thereby stimulating product returns to
the Company. Further consolidation or financial difficulties could also cause
customers to reduce their inventory levels or otherwise reduce purchases of the
Company's products which could result in a material adverse effect on the
Company's operations.

Dura's principal customers are wholesale drug distributors and major drug store
chains. For the nine months ended September 30, 1998, one wholesale customer
(McKesson Corporation) accounted for 13% of sales. For the same period in 1997,
three wholesale customers (McKesson Corporation, Cardinal Health, Inc., and
AmeriSource Health Corporation) individually accounted for 11%, 11%, and 10% of
sales, respectively.

SEASONALITY AND FLUCTUATING QUARTERLY RESULTS. Historically, as a result of
the winter cold and flu season, industry-wide demand for respiratory products
has been stronger in the first and fourth quarters than in the second and
third quarters of the year. In addition, variations in the timing and
severity of the winter cold and flu season have influenced Dura's results of
operations in the past. While the growth and productivity of Dura's sales
force and the introduction by Dura of new products have historically
mitigated the impact of seasonality on Dura's results of operations, recent
product acquisitions by Dura, especially Ceclor-Registered Trademark- CD, which
is used to treat respiratory infections, increase the impact of seasonality
on Dura's results of operations. No assurances can be given that Dura's 
results of operations will not be materially adversely affected by the 
seasonality of product sales.

COMPETITION. Many companies, including large pharmaceutical firms with financial
and marketing resources and development capabilities substantially greater than
those of Dura, are engaged in developing, marketing and selling products that
compete with those offered or planned to be offered by Dura. The selling prices
of such products typically decline as competition increases. Further, other
products now in use or under development by others may be more effective than
Dura's current or future products. The industry is characterized by rapid
technological change, and competitors may develop their products more rapidly
than Dura. Competitors may also be able to complete the regulatory process
sooner, and therefore, may begin to market their products in advance of Dura's
products. Dura believes that competition among both prescription pharmaceuticals
and pulmonary drug delivery systems aimed at the 

                                         15
<PAGE>

respiratory infection, allergy, cough and cold, and asthma and chronic 
obstructive pulmonary disease markets will be based on, among other things, 
product efficacy, safety, reliability, availability and price.

There are at least 25 other companies in the U.S. that are currently engaged 
in developing, marketing and selling respiratory pharmaceuticals. 
Additionally, there are at least 10 companies currently involved in the 
development, marketing or sales of dry powder pulmonary drug delivery 
systems. There are two types of dry powder inhalers ("DPIs") currently in 
commercial use worldwide, individual dose and multiple dose. Individual dose 
DPIs currently marketed in the U.S. include the Rotohaler-TM- (developed and 
marketed by Glaxo Wellcome ("Glaxo")) and the Spinhaler-Registered Trademark- 
(developed and marketed by Fisons Limited).  The Turbuhaler-Registered 
Trademark- (developed and marketed by Astra Pharmaceuticals, Inc. ("Astra")),
a multiple dose DPI, is the leading DPI in worldwide sales. In June 1997, the
FDA approved the first Turbuhaler product, the Pulmicort Turbuhaler, for
marketing in the U.S., which Astra launched in early 1998. The FDA has also
approved two multiple dose DPIs developed by Glaxo, the Flovent-Registered
Trademark-Rotadisk-Registered Trademark-and the Serevent-Registered 
Trademark-Diskus-Registered Trademark-, both launched in early 1998.

DEPENDENCE ON THIRD PARTIES. Dura's strategy for development and
commercialization of certain of its products, including Spiros, is dependent
upon entering into various arrangements with corporate partners, licensors and
others and upon the subsequent success of these partners, licensors and others
in performing their obligations. There can be no assurance that Dura will be
able to negotiate acceptable arrangements in the future or that such
arrangements or its existing arrangements will be successful. In addition,
partners, licensors and others may pursue alternative technologies or develop
alternative compounds or drug delivery systems either on their own or in
collaboration with others, including Dura's competitors. Dura's partners and
licensors also have the ability to terminate the contracts in certain
circumstances with limited prior notice. Dura has limited experience
manufacturing products for commercial purposes and currently does not have the
capability to manufacture its pharmaceutical products and therefore is dependent
on contract manufacturers for the production of such products for development
and commercial purposes. The manufacture of Dura's products is subject to cGMP
regulations prescribed by the FDA. Dura relies on a single manufacturer for each
of its products. There can be no assurance that Dura will be able to continue to
obtain adequate supplies of such products in a timely fashion at acceptable
quality and prices. Also, there can be no assurance that Dura will be able to
enter into agreements for the manufacture of future products, including Spiros
products, with manufacturers whose facilities and procedures comply with cGMP
and other regulatory requirements. In the event that Dura is unable to obtain or
retain third-party manufacturing, it may not be able to commercialize its
products as planned. Dura's current dependence upon others for the manufacture
of its products may adversely affect future profit margins on the sale of those
products and Dura's ability to develop and deliver products on a timely and
competitive basis.

LIMITED MANUFACTURING EXPERIENCE. Dura's principal manufacturing facility is
intended to be used to formulate, mill, blend and manufacture drugs to be used
with Spiros, pending regulatory approval. Equipment purchases and validation are
currently scheduled into 1999. Dura's manufacturing facility must be registered
with and licensed by various regulatory authorities and 

                                         16
<PAGE>

must comply with current cGMP requirements prescribed by the FDA and the 
State of California. Dura will need to significantly scale up its current 
manufacturing operations and comply with cGMPs and other regulations 
prescribed by various regulatory agencies in the U.S. and other countries to 
achieve the prescribed quality and required levels of production of such 
products to obtain marketing approval. Any failure or significant delay in 
the validation of or obtaining a satisfactory regulatory inspection of the 
new facility, failure to successfully scale up or failure to maintain 
necessary regulatory approvals for such facilities could have a material 
adverse effect on the ability of Dura to manufacture products in connection 
with Spiros. Dura intends to utilize third parties to produce components of 
and assemble the Spiros aerosol generator. Such third parties have only 
produced limited quantities of components and assembled limited numbers of 
generators and will be required to significantly scale up their activities 
and to produce components on a timely and consistent basis and which meet 
applicable specifications. There can be no assurance that such third parties 
will be successful in attaining acceptable service levels or meeting cGMP 
requirements. Any failure or delay in the scale up or supply or meeting cGMP 
requirements associated with aerosol generator manufacturing would have a 
material adverse effect on the ability of Dura to commercialize Spiros 
products.

MANAGING GROWTH OF BUSINESS. Dura has experienced significant growth primarily
as a result of the acquisition and in-licensing of additional respiratory
pharmaceutical products. Due to Dura's emphasis on acquiring and in-licensing
respiratory pharmaceutical products, Dura anticipates that the integration of
its acquired products, as well as any future acquisitions, will require
significant management attention and expansion of its sales force. On February
22, 1998, the Company announced that it planned to begin expanding its field
sales force immediately from approximately 270 representatives to approximately
450 representatives by the end of 1998. The rapid expansion of the Company's
sales force has resulted in an increase in fiscal 1998 in its selling, general
and administrative expenses, both in total and as a percentage of revenues, as
compared to fiscal 1997.

UNCERTAINTY OF PROFITABILITY; NEED FOR ADDITIONAL FUNDS. Dura has experienced
significant operating losses in the past, and at September 30, 1998, Dura's
accumulated deficit was $145.9 million. The acquisition and in-licensing of
products, the expansion and maintenance of Dura's sales force in response to
acquisition, in-licensing, and enhanced promotion of products, the upgrade and
expansion of its facilities, continued pricing pressure on its pharmaceutical
products, or the exercise of the Stock Purchase Option or Product Options
(defined below) will require the commitment of substantial capital resources and
may also result in significant impairment of profits, or losses. Depending upon,
among other things, the acquisition and in-licensing opportunities available,
Dura may need to raise additional funds for these purposes. Adequate funds for
these purposes may not be available when needed or on terms acceptable to Dura.
Insufficient funds may require Dura to delay, scale back or suspend some or all
of its product acquisition, in-licensing and promotional programs, the upgrade
and expansion of its facilities, or the potential exercise of the Stock Purchase
Option and/or the Product Options. Dura anticipates that its existing capital
resources, together with cash expected to be generated from operations and
available bank borrowings, should be sufficient to finance its current
operations and working capital requirements through at least the next 12 months.

                                         17
<PAGE>

EFFECT OF EXERCISE OF THE STOCK PURCHASE OPTION AND THE PRODUCT OPTIONS;
DILUTION. Dura has a purchase option with respect to the outstanding shares of
callable common stock of Spiros Corp. II which expires on December 31, 2002
("Stock Purchase Option"). If Dura exercises the Stock Purchase Option, it will
be required to make a substantial cash payment or to issue shares of Dura Common
Stock, or both. A payment in cash would reduce Dura's capital resources. A
payment in shares of Dura Common Stock would result in a decrease in the
percentage ownership of Dura's shareholders at that time. If Dura determines to
exercise the Stock Purchase Option, it will likely require Dura to record a
significant charge to earnings and may have an adverse impact on future
operating results. If Dura does not exercise the Stock Purchase Option prior to
its expiration, Dura's rights in and to Spiros with respect to certain compounds
will terminate.

As part of Dura's contractual relationship with Spiros Corp. II, Dura received
options to purchase certain rights to the use of Spiros with albuterol and with
an additional product other than albuterol ("Product Options"). If Dura
exercises either of the Product Options, it will be required to make a
significant cash payment which could have an adverse effect on its capital
resources. Dura may not have sufficient capital resources to exercise the
Product Options, which may result in Dura's loss of valuable rights.

GOVERNMENT REGULATION; NO ASSURANCE OF FDA APPROVAL. Development, testing, 
manufacturing and marketing of pharmaceutical products, including drug 
delivery systems, are subject to extensive regulation by numerous 
governmental authorities in the U.S. and other countries. The process of 
obtaining FDA approval of pharmaceutical products and drug delivery systems 
is costly and time consuming. Any new pharmaceutical product must undergo 
rigorous preclinical and clinical testing and an extensive regulatory 
approval process mandated by the FDA. Such regulatory review includes the 
determination of manufacturing capability and product performance. Marketing 
of drug delivery systems also requires FDA approval, which can be costly and 
time consuming to obtain. A separate regulatory approval will need to be 
obtained for each Spiros drug delivery system. There can be no assurance that 
the products currently in development by Dura or in collaboration with third 
parties, or those products acquired or in-licensed will be approved by the 
FDA. In addition, there can be no assurance that all necessary approvals will 
be granted for future products or that FDA review or actions will not involve 
delays caused by the FDA's request for additional information or testing that 
could adversely affect the time to market and sale of the products. On 
November 4, 1998, Dura and Spiros Corp. II announced the receipt of a 
complete response letter from the FDA (the "FDA Letter") relating to the 
Albuterol Spiros-TM- NDA filed by Dura on behalf of Spiros Corp. II in 
November 1997. The FDA Letter indicated that the NDA was not approvable until 
and unless certain deficiencies are addressed, and raised issues including 
but not limited to chemistry, manufacturing and control, and 
electromechanical properties and reliability of the inhaler. The FDA has 
indicated that an additional clinical trial or trials will be necessary to 
address the issues raised in the FDA Letter. Such trial or trials may be 
costly and time-consuming. There can be no assurance that such trial or 
trials will be successful, and/or that regulatory approval of the Albuterol 
Spiros-TM-product will be obtained. In any event, conduct of such additional 
trials would result in a substantial delay in the marketing approval and 
launch, if any, of the Albuterol Spiros-TM- product (see "Development Risk 
Associated with Spiros" above).  For both currently marketed products and 
future products of

                                         18
<PAGE>

Dura, failure to comply with applicable regulatory requirements can, among 
other things, result in the suspension of regulatory approval, as well as 
possible civil and criminal sanctions.

The FDA is continuing an evaluation of the effectiveness of all drug products
containing ingredients marketed prior to 1962 (the year of enactment of the
"Drug Amendments of 1962" to the Federal Food, Drug and Cosmetic Act) as part of
its DESI program and will determine which drugs are considered "new drugs"
requiring approval through an NDA for marketing. A Policy Guide (CPG 440.100)
issued by the FDA indicates that the FDA will implement procedures to determine
whether the new drug provisions are applicable to existing products. This Policy
Guide requires that products covered by paragraph B not be similar or related to
any drug included in the DESI program or have a different formulation or
conditions for use than products marketed before November 13, 1984. If a final
determination is made that a particular drug required an approved NDA, such
approval will be required for marketing to continue. If such a determination is
made, the FDA might impose various requirements; for example, it might require
that the current product be the subject of an approved NDA, that the product be
reformulated and an NDA approval be obtained, that the product must be sold on
an over-the-counter basis rather than as a prescription drug or that the
products must be removed from the market. Dura believes that twenty-one of its
prescription pharmaceutical products may be covered by paragraph B of the Policy
Guide or may be DESI-related. Also, Dura is not aware of evidence to
substantiate that three of its products have the same formulation or conditions
for use as products marketed before November 13, 1984. There can be no assurance
as to which regulatory course the FDA will follow, if any, with respect to many
of Dura's pharmaceutical products or whether Dura will be able to obtain any
approvals that the FDA may deem necessary. If any negative actions are taken by
the FDA, such actions could have a material adverse effect on the business of
Dura. Dura's Health Script Pharmacy Services, Inc. ("Health Script") subsidiary
is subject to regulation by state regulatory authorities, principally state
boards of pharmacy. In addition, Health Script is subject to regulation by other
state and federal agencies with respect to reimbursement for prescription drug
benefits provided to individuals covered primarily by publicly funded programs.

PATENTS AND PROPRIETARY RIGHTS. Dura's success will depend in part on its
ability to obtain patents on current or future products or formulations, defend
its patents, maintain trade secrets and operate without infringing upon the
proprietary rights of others both in the U.S. and abroad. However, only five of
the pharmaceuticals currently marketed by Dura are covered by patents. Dura also
has licenses or license rights to certain other U.S. and foreign patent and
patent applications. There can be no assurance that patents, U.S. or foreign,
will be obtained, or that, if issued or licensed to Dura, they will be
enforceable or will provide substantial protection from competition or be of
commercial benefit to Dura or that Dura will possess the financial resources
necessary to enforce or defend any of its patent rights. Federal court decisions
establishing legal standards for determining the validity and scope of patents
in the field are in transition. There can be no assurance that the historical
legal standards surrounding questions of validity and scope will continue to be
applied or that current defenses as to issued patents in the field will offer
protection in the future. The commercial success of Dura will also depend upon
avoiding the infringement of patents issued to competitors and upon maintaining
the technology licenses upon which certain of Dura's current products are, or
any future products under development might be, 

                                         19
<PAGE>

based. Litigation, which could result in substantial cost to Dura, may be 
necessary to enforce Dura's patent and license rights or to determine the 
scope and validity of proprietary rights of third parties. If any of Dura's 
products are found to infringe upon patents or other rights owned by third 
parties, Dura could be required to obtain a license to continue to 
manufacture or market such products. There can be no assurance that licenses 
to such patent rights would be made available to Dura on commercially 
reasonable terms, if at all. If Dura does not obtain such licenses, it could 
encounter delays in marketing affected products while it attempts to design 
around such patents or it could find that the development, manufacture or 
sale of products requiring such licenses is not possible. Dura currently has 
certain licenses from third parties and in the future may require additional 
licenses from other parties to develop, manufacture and market commercially 
viable products effectively. There can be no assurance that such licenses 
will be obtainable on commercially reasonable terms, if at all, or that the 
patents underlying such licenses will be valid and enforceable.

PRODUCT LIABILITY AND RECALL. Dura faces an inherent business risk of exposure
to product liability claims in the event that the use of its technologies or
products is alleged to have resulted in adverse effects. Such risks will exist
even with respect to those products that receive regulatory approval for
commercial sale. While Dura has taken, and will continue to take, what it
believes are appropriate precautions, there can be no assurance that it will
avoid significant product liability exposure. Dura currently has product
liability insurance; however, there can be no assurance that the level or
breadth of any insurance coverage will be sufficient to fully cover potential
claims. There can be no assurance that adequate insurance coverage will be
available in the future at acceptable costs, if at all, or that a product
liability claim or recall would not materially and adversely affect the
Company's operations.

ATTRACTION AND RETENTION OF KEY PERSONNEL. The Company is highly dependent on
the principal members of its management staff, the loss of whose services might
impede the achievement of corporate objectives. Although the Company believes
that it is adequately staffed in key positions and that it will be successful in
retaining skilled and experienced management, operational and scientific
personnel, there can be no assurance that the Company will be able to attract
and retain such personnel on acceptable terms. The loss of the services of key
scientific, technical and management personnel could have a material adverse
effect on the Company, especially in light of the Company's recent significant
growth.

TERMINATION OF MERGER AGREEMENT WITH SCANDIPHARM, INC. On December 1, 1997, the
Company terminated a merger agreement with Scandipharm entered into on October
20, 1997. On January 16, 1998, Scandipharm filed suit against the Company for
breach of contract. On January 19, 1998, the Company filed suit against
Scandipharm seeking a declaratory judgment that Dura's termination of the merger
agreement did not breach the agreement, and for damages against Scandipharm. The
Company believes that it had the right to terminate the merger agreement, that
Scandipharm's claims in its lawsuit and its claims for damages are without
merit, and that the outcome of this matter will not have a material adverse
effect on the Company's operations.

CHANGE IN CONTROL. Certain provisions of Dura's charter documents and terms
relating to the acceleration of the exercisability of certain warrants and
options in the event of a change in 

                                         20
<PAGE>

control may have the effect of delaying, deferring or preventing a change in 
control of Dura, thereby possibly depriving shareholders of receiving a 
premium for their shares of the Dura Common Stock. In addition, upon a Change 
in Control (as defined), Dura will be required to offer to purchase for cash 
all of the outstanding Notes at a purchase price of 100% of the principal 
amount thereof, plus accrued but unpaid interest through the Change in 
Control Purchase Date (as defined). The Change in Control purchase features 
of the Notes may in certain circumstances have an anti-takeover effect. If a 
Change in Control were to occur, there can be no assurance that Dura would 
have sufficient funds to pay the Change in Control Purchase Price (as 
defined) for all Notes tendered by the holders thereof and to repay other 
indebtedness that may become due as a result of any Change in Control.

In May 1998, the Company adopted a Shareholder Rights Plan in which Preferred
Stock purchase rights ("Rights") were distributed as a dividend at the rate of
one Right for each share of Common Stock held as of the close of business on
June 5, 1998. Each Right entitles shareholders to buy, upon certain events, one
one-thousandth of a share of a new series of junior participating Preferred
Stock of the Company at an exercise price of $175.00. The Rights are designed to
guard against partial tender offers and other abusive tactics that might be used
in an attempt to gain control of the Company or to deprive shareholders of their
interest in the long-term value of the Company. The Rights are exercisable only
if a person or group acquires 15% or more of the Company's Common Stock or
announces a tender offer of which the consummation would result in ownership by
a person or group of 15% or more of the Company's Common Stock. The Rights are
redeemable for one cent per Right at the option of the Board of Directors prior
to this event occurring. The Rights expire on June 5, 2008.

VOLATILITY OF DURA STOCK PRICE. The market prices for securities of emerging
companies, including Dura, have historically been highly volatile. Future
announcements concerning Dura or its competitors may have a significant impact
on the market price of the Dura Common Stock. Such announcements might include
financial results, the results of testing, regulatory developments,
technological innovations, new commercial products, changes to government
regulations, government decisions on commercialization of products, developments
concerning proprietary rights, litigation or public concern as to safety of
Dura's products.

ABSENCE OF DIVIDENDS. The Company has never paid any cash dividends on its
Common Stock. In accordance with a bank loan agreement, Dura is prohibited from
paying cash dividends without prior bank approval. Dura currently anticipates
that it will retain all available funds for use in its business and does not
expect to pay any cash dividends in the foreseeable future.

YEAR 2000 COMPLIANCE CONSIDERATIONS. 

The Company utilizes computer systems throughout its business to carry out 
its day-to-day operations. Beginning in 1997, the Company implemented a 
program to ensure that its operations would not be adversely impacted by an 
inability of its computer operating systems to process data having dates on or 
after January 1, 2000 ("Year 2000"). The program includes an assessment of 
the Company's information technology ("IT") systems as well as technology 
systems embedded in the Company's facilities and equipment ("Non-IT").

The first phase in the Company's Year 2000 program was to identify the IT and 
Non-IT systems with Year 2000 exposure. This phase was completed during 1998. 
Substantially all the hardware and software comprising the Company's IT 
systems were replaced in 1997 with systems that are Year 2000 compliant. 
Accordingly, no further evaluation or testing of these systems is required. 
The Company is currently evaluating its Non-IT systems to assess whether they 
are Year 2000 compliant or, if not, whether the systems will be impacted by 
the change in year. The Company will not be able to assess what, if any, 
remediation to its Non-IT systems will be necessary until the evaluation 
phase is complete.

                                         21
<PAGE>


The Company has contacted its significant suppliers, customers, and key 
business partners to determine the extent to which the Company's business may 
be affected in the event these parties fail to address their Year 2000 
issues. The Company intends to monitor the progress made by these parties and 
to include in its remediation and contingency plan steps to address any risks 
arising from their failure to adequately prepare for the Year 2000. In 
addition, the Company will test key interfacing data systems with its 
business partners to ensure that all measures taken to become Year 2000 
compliant are effective.

The Company will develop a contingency plan to address any Year 2000 
exposures from internal and third-party systems that may not be adequately 
remediated or replaced. While it is difficult to identify all potential Year 
2000 exposures, the greatest risks to the Company are an inability to receive 
and process orders from its customers or for its vendors to supply product 
inventory. If necessary, the Company's contingency plan will include steps to 
address these risks such as identification of alternative suppliers, stocking 
of inventory supply, and developing back-up systems to process sales orders.

Management expects to complete its Year 2000 evaluation, testing and 
contingency planning by June 30, 1999. The Company estimates that the 
aggregate costs of its Year 2000 program will be less than $1 million, 
including costs incurred to date. This estimate excludes the cost of the IT 
systems implemented in 1997 as the implementation was not in response to the 
Year 2000 issue. The majority of these costs are not expected to be 
incremental expenses but rather an allocation of existing resources. The 
estimated impact, cost, and timing of the Company's Year 2000 program are 
based on management's best estimate using information currently 
available. However, there can be no guarantee that these estimates will be 
achieved and actual results could differ materially from those plans.

ITEM 3.           QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

None.













                                         22
<PAGE>

                          PART II - OTHER INFORMATION

ITEM 6.       EXHIBITS AND REPORTS ON FORM 8-K

(a)  Exhibits

<TABLE>
<CAPTION>

Exhibit No.   Description
- -----------   -------------
<S>           <C>
(1)   3.1     Certificate of Incorporation

(2)   3.2     Certificate of Amendment of Certificate of Incorporation,
              effective May 21, 1998

(2)   3.3     Certificate of Designation of Series A Junior Participating 
              Preferred Stock

(1)   3.4     Bylaws

     10.1     Amendment No. 5 to Business Loan Agreement dated October 12, 1998
              between the Company and Bank of America National Trust and Savings
              Association

     10.2     Amendment No. 6 to Business Loan Agreement dated November 13, 1998
              between the Company and Bank of America National Trust and Savings
              Association

     10.3     Employment letter agreement dated July 1, 1998 between the
              Company and Robert S. Whitehead

     10.4     Notice of Grant of Stock Option dated July 10, 1998  between the
              Company and Robert S. Whitehead

       11     Statements re Computations of Net Income Per Share

       27     Financial Data Schedule

</TABLE>

(1)      Incorporated by reference to the Company's Form 10-Q for the quarter
         ended June 30, 1997.

(2)      Incorporated by reference to the Company's Registration Statement on
         Form 8-A filed on May 22, 1998.

(b)  Reports on Form 8-K 

     None.


                                         23

<PAGE>

                                   SIGNATURES

         Pursuant to the requirements 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.

                                          DURA PHARMACEUTICALS, INC.

DATE  NOVEMBER 13, 1998                   /S/ MICHAEL T. BORER
- -----------------------                   --------------------
                                          MICHAEL T. BORER
                                          SENIOR VICE PRESIDENT AND CHIEF
                                          FINANCIAL OFFICER
                                          (Principal Financial and Accounting
                                          Officer)





                                         24

<PAGE>
                                     EXHIBIT INDEX
                                         TO
                                      FORM 10-Q

                              DURA PHARMACEUTICALS, INC.


<TABLE>
<CAPTION>

Exhibit No.   Description
- ----------    -------------
<S>           <C>
(1)   3.1     Certificate of Incorporation

(2)   3.2     Certificate of Amendment of Certificate of Incorporation,
              effective May 21, 1998

(2)   3.3     Certificate of Designation of Series A Junior Participating 
              Preferred Stock

(1)   3.4     Bylaws

     10.1     Amendment No. 5 to Business Loan Agreement dated October 12, 1998
              between the Company and Bank of America National Trust and Savings
              Association

     10.2     Amendment No. 6 to Business Loan Agreement dated November 13, 1998
              between the Company and Bank of America National Trust and Savings
              Association

     10.3     Employment letter agreement dated July 1, 1998 between the
              Company and Robert S. Whitehead

     10.4     Notice of Grant of Stock Option dated July 10, 1998  between the
              Company and Robert S. Whitehead

       11     Statements re Computations of Net Income Per Share

       27     Financial Data Schedule

</TABLE>

(1)      Incorporated by reference to the Company's Form 10-Q for the quarter
         ended June 30, 1997.

(2)      Incorporated by reference to the Company's Registration Statement on
         Form 8-A filed on May 22, 1998.





<PAGE>

                   AMENDMENT NO. 5 TO BUSINESS LOAN AGREEMENT

         This Amendment No.5 (the "Amendment") dated as of October 12, 1998 is
between Dura Pharmaceuticals, Inc. (the "Borrower") and Bank of America National
Trust and Savings Association (the "Bank").

                                    RECITALS

         A. The Bank and the Borrower entered into that certain Business Loan
Agreement dated as of April 14, 1997, as modified by amendments of May 8, 1997,
July 30, 1997, October 28, 1997, and June 25, 1998 (as amended, the
"Agreement").

         B. The Bank and the Borrower desire to amend the Agreement on the terms
and conditions set forth below:

                                    AGREEMENT

         1.       DEFINITIONS.  Capitalized terms used but not defined in this
Amendment shall have the meaning given to them in the Agreement.

         2. AMENDMENTS. The Agreement is hereby amended as follows:

                  2.1 In Paragraph 6.3 of the Agreement, the period is deleted
         from the end of subparagraph (g) and is replaced with "; MINUS" and the
         following is added as a new subparagraph (h):

                           "(h) the amount of treasury stock held by the
                  Borrower not to exceed Fifty Million Dollars ($50,000,000)."

                  2.2 Paragraph 6.11 of the Agreement is amended in full to read
         as follows:

                           "6.11 Dividends. Not to declare or pay any dividends
                  on any of its shares except dividends payable in capital stock
                  of the Borrower, and not to purchase, redeem or otherwise
                  acquire for value any of its shares, or create any sinking
                  fund in relation thereto; provided, however, that the Borrower
                  may acquire treasury stock in an amount not to exceed Fifty
                  Million Dollars ($50,000,000)."

                  2.3 The form of compliance certificate appearing as Exhibit A
         to Amendment No. 3 to the Agreement as referenced in Paragraph 6.2(d)
         is amended to read as set forth on Exhibit A to this Amendment.

         3. REPRESENTATIONS AND WARRANTIES. When the Borrower signs this
Amendment, the Borrower represents and warrants to the Bank that: (a) except as
disclosed to the Bank by the Borrower in its letter dated October __, 1998,
there is no event which is, or with notice or lapse of time or both would be, a
default under the Agreement (b) except as disclosed to the Bank by the Borrower
in its letter dated October __, 1998, the representations and warranties in the
Agreement are true as of the date of this Amendment as if made on the date of
this Amendment, (c) this Amendment is within the Borrower's powers, has been
duly authorized, and does not conflict with any of the Borrower's organizational
papers, and 
                                         1
<PAGE>

(d) this Amendment does not conflict with any law, agreement, or obligation 
by which the Borrower is bound.

         4. EFFECT OF AMENDMENT. Except as provided in this Amendment, all of
the terms and conditions of the Agreement shall remain in full force and effect.

         This Amendment is executed as of the date stated at the beginning of
the Amendment.

                           BANK OF AMERICA NATIONAL TRUST AND SAVINGS
                           ASSOCIATION



                            By: /s/ Susan J. Pepping
                            -------------------------------
                            Name:     Susan J. Pepping
                            Title:    Vice President



                           DURA PHARMACEUTICALS, INC.



                           By:  /s/ Erle Mast
                           -------------------------------
                           Name:     Erle Mast

                           Title:    Vice President, Finance


                           By: /s/ Mitchell R. Woodbury

                           Name: Mitchell R. Woodbury

                           Title:  Senior V.P., General Counsel and Secretary




                                         2
<PAGE>

                                   EXHIBIT "A"

                             COMPLIANCE CERTIFICATE


To:  BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION

       Reference is made to that certain Business Loan Agreement dated as of
April 14, 1997, as amended, between Bank of American National Trust and Savings
Association and Dura Pharmaceuticals, Inc., (the "Business Loan Agreement").
Capitalized terms not otherwise defined in this Certificate shall have the
meanings ascribed to them in the Business Loan Agreement. This Certificate is
delivered in accordance with Paragraph 6.2(d) of the Business Loan Agreement.

I.  COMPLIANCE WITH FINANCIAL COVENANTS

       Computations showing compliance with certain paragraphs of the Business
Loan Agreement are as follows:

       Paragraph 6.3; Net Worth.. As of the date of the attached financial
statements, the Borrower and Domestic Subsidiaries' Net Worth, on a consolidated
and cumulative basis, is at least the sum of:

<TABLE>

             <S>                                                                 <C>
             Calculated Net Worth from the immediately preceding
             fiscal quarter.  Net Worth amount as of the 6/30/97
             fiscal quarter shall begin with $450,000,000.                        $____________

             PLUS, in each quarterly accounting period, commencing with the
             quarter ended 6-30-97 the sum of:

                50% of net income after income taxes
                (without subtracting losses),                                     $_____________

                PLUS the net proceeds from the issuance of any equity
                securities (including shares issued upon exercise
                of stock options),                                                $_____________

                PLUS any increase in stockholders' equity resulting
                from the conversion of debt securities to equity securities       $_____________

                PLUS any increase in stockholders equity resulting from
                the transactions as described in the Form S-3 dated
                October 10, 1997                                                  $_____________

                MINUS, cash and noncash charges for in-process technology
                purchased from Spiros Development Corporation and for any
                contribution to Spiros Development Corporation II, Inc., as
                described in the Form S-3 ( the "Spiros Charges"), up to a
                maximum of One Hundred Twenty Five Million
                Dollars ($125,000,000) in the aggregate;                          $_____________

<PAGE>

Compliance Certificate
Page 2

                <S>                                                               <C>
                MINUS any decrease in stockholders' equity resulting from the
                acquisition by the Borrower of Spiros Development Corporation or
                a cash contribution from the Borrower to Spiros Development
                Corporation II,
                Inc. as described in the Form S-3,                                $____________

                MINUS the amount of treasury stock held by the
                Borrower not to exceed $50,000,000.                               $_____________

             minimum permitted                                                    $_____________

             actual Net Worth                                                     $_____________

</TABLE>

       PARAGRAPH 6.4; ADJUSTED FUNDED DEBT TO ADJUSTED EBITDA. As of the date of
the attached financial statements for Borrower and its Domestic Subsidiaries,
the ratio of funded debt to adjusted EBITDA was calculated as follows:

       (a)   The sum of:

<TABLE>

             <S>                                                                  <C>
             All funded debt (including interest bearing obligations)             $_____________

             MINUS obligations owing to Procter & Gamble Pharmaceuticals, Inc.
             for Entex Products (maximum $20,000,000) less domestic cash and
             domestic cash equivalents up to an amount equal the face amount of
             the Notes issued pursuant to
             and as defined in the Indenture.                                     $_____________

             adjusted funded debt                                                 $_____________

             DIVIDED by

       (b)    For the current fiscal quarter and each of the three immediately
              preceding quarters, the sum of :

             net income                                                           $_____________

             MINUS interest income                                                $(____________)

             PLUS interest expense                                                $_____________

             PLUS depreciation                                                    $_____________

             PLUS depletion                                                       $____________

             PLUS amortization                                                    $_____________

             PLUS all federal, state, local and foreign income taxes              $_____________


<PAGE>

Compliance Certificate
Page 3

             <S>                                                                  <C>
             PLUS Spiros Charges (up to maximum of $125,000,000
             in aggregate)                                                        $_____________

             Adjusted EBITDA                                                      $_____________

             EQUALS (EXPRESSED AS A RATIO)                                         __________:1.00

             maximum permitted:

             Up to and including August 31, 1997                                  2.00 to 1.00

             From and including September 1, 1997 and thereafter                  1.75 to 1.00

</TABLE>

             PARAGRAPH 6.5; MINIMUM EBIT. For the fiscal quarter ended as of the
       date of the attached financial statements, EBIT was calculated as
       follows:

<TABLE>
             <S>                                                                  <C>
             (a)  the sum of:

                  net income                                                       $____________

                  minus interest income                                            $(____________)

                  plus interest expense                                            $____________

                  plus all federal, state, local and foreign income
                  taxes                                                            $____________

                  plus the Spiros Charges (maximum of $125,000,000
                  in aggregate)                                                    $_____________

                  equals                                                           $_____________

                  minimum permitted:                                               $(1,000,000)

</TABLE>

             Paragraph 6.7; Other Indebtedness. As of the date of the attached
       financial statements for the Borrower and its subsidiaries, the
       outstanding amount of debts for acquisition of fixed or capital assets
       permitted under Paragraph 6.7 (e) was $_______________.

<TABLE>

             <S>                                                                   <C>
             maximum permitted in any single fiscal year:                          $5,000,000
             (excludes debt pursuant to that certain Indenture
             dated as of July 30, 1997)

</TABLE>

              PARAGRAPH 6.8; LIENS. As of the date of the attached financial
       statements for the Borrower and its subsidiaries, the amount of
       obligations secured by a lien under the last provision of Paragraph 6.8
       was $___________.

<TABLE>

             <S>                                                                   <C>
             maximum permitted in any fiscal year:                                 $5,000,000

</TABLE>

<PAGE>

       Compliance Certificate
       Page 4

             Paragraph 6.9; Capital Expenditures. As of the date of the attached
       financial statements for the Borrower and its subsidiaries, the total
       amount expended year to date to acquire fixed or capital assets was
       $_____________.


<TABLE>

             <S>                                                                   <C>
             maximum permitted during 1997 fiscal year:                            $30,000,000

             maximum permitted during 1998 fiscal year:                            $55,000,000

</TABLE>

              PARAGRAPH 6.11, DIVIDENDS. As of the date of the attached
       financial statements for the Borrower and its subsidiaries, the total
       amount of treasury stock was $____________

<TABLE>

             <S>                                                                   <C>
             maximum permitted                                                     $50,000,000
</TABLE>

             PARAGRAPH 6.12; LOANS TO AFFILIATED COMPANIES. Since the date of
       the Business Loan Agreement, the total amount of loans or other
       extensions of credit made by the Borrower or any Domestic Subsidiary
       (including subsidiaries of the Borrower) to its affiliates was
       $________________; and the total investments in Foreign Subsidiaries was
       $___________; and the total Loans to Dura (Bermuda) Trading Company,
       Ltd.was $________________.


<TABLE>

             <S>                                                                   <C>
             maximum permitted:                                                    $10,000,000
             Investments in Foreign Subsidiaries permitted                         $90,000,000
             Loans to Dura (Bermuda) Trading Company, Ltd.
             permitted                                                             $190,000,000
</TABLE>

             Paragraph 6.21 (h); Asset Acquisitions. Since the date of the
       Business Loan Agreement, the total amount of asset acquisitions,
       including license agreements and product rights, permitted under
       Paragraph 6.21 (h) was $__________________.

<TABLE>
<CAPTION>

             <S>                                                                   <C>
             Maximum permitted in aggregate                                        $100,000,000
</TABLE>

       II    PERFORMANCE OF OBLIGATIONS

             A review of the activities of Borrower during the fiscal period
       covered by this Certificate has been made under the supervision of the
       undersigned with a view to determining whether during such fiscal period
       Borrower performed and observed all of its obligations. The best
       knowledge of the undersigned, during the fiscal period covered by this
       Certificate, all covenants and conditions have been so performed and
       observed by Borrower and no Event of Default or event which with notice
       or lapse of time or both would be an Event of Default has occurred based
       on the activities of Borrower and is continuing, with any exceptions set
       forth below, in response to which Borrower has taken or propose to take
       the following actions (if none, so state). Without limiting the
       foregoing, the Borrower has no Significant Subsidiaries except those that
       have executed and delivered to Bank a guaranty as required under
       paragraph 6.6 of the Business Loan Agreement.

<PAGE>

       Compliance Certificate
       Page 5

       III.  COMPLIANCE WITH INDENTURE

       To the best knowledge of the undersigned, no event or circumstance has
       occurred that constitutes violation of the Indenture Agreement, as
       evidenced by the attached copy of the most recent Indenture compliance
       certificate .

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

       IV.   NO MATERIAL ADVERSE CHANGE

             To the best knowledge of the undersigned, no event or circumstance
       has occurred that constitutes a Material Adverse Effect regarding
       Borrower under Paragraph 8.7 of the Business Loan Agreement since the
       date the most recent Certificate was executed and delivered, with any
       exceptions being set forth below (if none, so state):

       This Certificate is executed on _________, 19___, by a responsible
       officer of Borrower. the undersigned hereby certify that each and every
       matter contained herein is derived from Borrower's books and records and
       is, to the best knowledge of the undersigned, true and correct.

             Dated: ____________, 19___

                                                 Dura Pharmaceuticals, Inc.


                                                 -----------------------------
                                                 By:




<PAGE>

                   AMENDMENT NO. 6 TO BUSINESS LOAN AGREEMENT


         This Amendment No. 6 (this "Amendment") dated as of November 13, 1998
is between Dura Pharmaceuticals, Inc. (the "Borrower") and Bank of America
National Trust and Savings Association (the "Bank").

                                    RECITALS

         A. The Bank and the Borrower entered into that certain Business Loan
Agreement dated as of April 14, 1997, as modified by amendments dated May 8,
1997, July 30, 1997, October 28, 1997, June 25, 1998, and October 12, 1998 (as
amended, the "Agreement").

         B. The Bank and the Borrower desire to amend the Agreement on the terms
and conditions set forth below:

                                    AGREEMENT

         1.       DEFINITIONS.  Capitalized terms used but not defined in this
Amendment shall have the meanings given to them in the Agreement.

         2. AMENDMENTS. Effective as of September 28, 1998, the Agreement is
hereby amended as follows:

                  2.1      The following is added as a new Article 3A:

                           "3A  COLLATERAL

                           3A.1 Stock of Certain Subsidiaries: Upon consummation
                  of the transactions described in Paragraph 6.24 below, the
                  Borrower's obligations under this Agreement will be secured by
                  the following property:

                                    (a) Sixty-six percent (66%) of the issued
                           and outstanding common stock of Dura (Barbados)
                           Holding Company Ltd.;

                                    (b) Sixty-six percent (66%) of the issued
                           and outstanding common stock of Dura (Barbados) Ltd.;
                           and

                                    (c) Sixty-six percent (66%) of the issued
                           and outstanding common stock of Dura (Burmuda)
                           Trading Company Ltd.

                  2.2      The following is added as a new Paragraph 5.14:

                           "5.14 TAXES ON INCOME FROM FOREIGN SUBSIDIARIES. 
         Income received by the Borrower from its Foreign Subsidiaries (as
         defined in Paragraph 6.6 below) is subject only to taxation by the
         United States Internal Revenue Service and other state and local taxing
         authorities within the United States of America."

                  2.3       Paragraph 6.3 is amended and restated in its
         entirety to read as follows:

                                         1
<PAGE>

                           "6.3 NET WORTH. To maintain on a consolidated basis
                  for each quarterly accounting period Net Worth equal to, on a
                  cumulative basis, at least the sum of:

                           (a) Four Hundred Thirty Million Dollars
                  ($430,000,000); plus

                           (b) the sum of 50% of the net income after income
                  taxes (without subtracting losses) earned in each quarterly
                  accounting period commencing with the quarter ended September
                  30, 1998; PLUS

                           (c) the net proceeds from any equity securities
                  (including shares issued upon the exercise of stock options)
                  issued in each quarterly accounting period commencing with the
                  quarter ended September 30, 1998; plus

                           (d) any increase in stockholders' equity resulting
                  from the conversion of debt securities to equity securities
                  issued in each quarterly accounting period commencing with the
                  quarter ended September 30, 1998; MINUS

                           (e) the amount of treasury stock held by the Borrower
                  not to exceed Fifty Million Dollars ($50,000,000).

                           `Net Worth' means the gross book value of the
                  Borrower's assets less total liabilities, including but not
                  limited to accrued and deferred income taxes, and any reserves
                  against assets."

                  2.4     Paragraph 6.4 is amended and restated in its entirety 
         to read as follows:

                           "6.4 MAXIMUM ADJUSTED FUNDED DEBT TO EBITDA. To
                  maintain on a consolidated basis a ratio of (i) funded debt,
                  including all interest bearing obligations, less the sum of
                  the following up to an amount equal to the face amount of the
                  Notes issued pursuant to and as defined in the Indenture: (A)
                  domestic cash and domestic cash equivalents, (B) one hundred
                  percent (100%) of offshore cash balances up to an amount equal
                  to the capital directly or indirectly contributed to Dura
                  (Burmuda) Trading Company Ltd. (as of the date hereof, this
                  amount is Sixty Million Dollars ($60,000,000)), and (C) fifty
                  percent (50%) of such offshore cash balances in excess of such
                  capital contributions, to (ii) EBITDA of not greater than 1.75
                  to 1.00.

                           Upon the Bank's request from time to time , the
                  Borrower shall provide evidence acceptable to the Bank of cash
                  equivalents. For purposes of this Agreement, cash equivalents
                  means:

                                    (a) domestic certificates of deposit or
                           domestic time deposits;

                                    (b) U.S. treasury bills and other direct
                           obligations of the federal government;

                                    (c) shares in domestic money market funds;

                                         2
<PAGE>

                                    (d) readily marketable obligations of an
                           agency of the United States of America that are
                           generally considered in the securities industry to be
                           implicit obligations of the federal government;

                                    (e) prime bankers' acceptances and
                           commercial paper issued by financial institutions
                           rated as least A-1 by Standard & Poors Ratings Group
                           or at least P-1 by Moody's Investors Service, Inc.;
                           and

                                    (f) repurchase agreements covering U.S.
                           government securities.

                           For purposes of this Agreement, `EBITDA' means net
                  income for such period, LESS, to the extent added in
                  determining such net income, interest income, PLUS, to the
                  extent deducted in determining such net income, (i) interest
                  expense, (ii) depreciation, (iii) depletion, (iv)
                  amortization, and (v) all federal, state, local and foreign
                  income taxes. This ratio will be calculated at the end of each
                  fiscal quarter using the results of that quarter and each of
                  the three immediately preceding quarters."

                  2.5    Paragraph 6.5 is amended and restated in its entirety
         to read as follows:

                           "6.5 MINIMUM EBIT; MINIMUM U.S. EBIT. To maintain for
                  each quarterly accounting period (i) on a consolidated basis
                  EBIT of not less than zero dollars ($0); and (ii) on
                  consolidated basis only for the Borrower and its Domestic
                  Subsidiaries EBIT of not less than a NEGATIVE Six Million
                  Dollars (-$6,000,000) for the fiscal quarter ended September
                  30, 1998, and not less than a NEGATIVE One Million Dollars
                  (-$1,000,000) for each fiscal quarter thereafter.

                           For purposes of this Agreement: `EBIT' means net
                  income for such period, LESS, to the extent added in
                  determining such net income, interest income, PLUS, to the
                  extent deducted in determining such net income, (i) interest
                  expense and (ii) all federal, state, local and foreign income
                  taxes; `Domestic Subsidiaries' means direct or indirect
                  subsidiaries of the Borrower that is incorporated or otherwise
                  organized under the laws of (x) the United States of America,
                  (y) any state, territory, or possession of the United States
                  of America, or (z) any other jurisdiction located within
                  either the United States of America or any state, territory,
                  or possession of the United States of America; individually, a
                  `Domestic Subsidiary.'"

                  2.6    Paragraph 6.6 is amended and restated in its entirety
         to read as follows:

                           "6.6 ADDITIONAL GUARANTIES. If at any time after the
                  date of this Agreement a subsidiary of the Borrower or any
                  guarantor becomes a Significant Subsidiary, to cause such
                  Significant Subsidiary to execute and deliver to the Bank, as
                  soon as reasonably practicable but not later than thirty (30)
                  days after the Bank's request therefor, a continuing guaranty
                  in the principal amount of at least Fifty Million Dollars
                  ($50,000,000) and otherwise in form and substance acceptable
                  to the Bank, together with satisfactory 

                                         3
<PAGE>

                  evidence of such Significant Subsidiary's authority to execute
                  and deliver such guaranty. For purposes of this Agreement 
                  `Significant Subsidiary' means a corporation (i) that is 
                  wholly-owned by the Borrower or any guarantor and (ii) that 
                  owns twenty percent (20%) or more of the Borrower's total 
                  consolidated assets or twenty percent (20%) or more of the 
                  Borrower's total consolidated sales for any fiscal quarter. 
                  Notwithstanding the foregoing, `Significant Subsidiary' shall 
                  not include any Foreign Subsidiary. `Foreign Subsidiary' means
                  any direct or indirect subsidiary of the Borrower that is not 
                  a Domestic Subsidiary."
                  
                  2.7     The following is added as a new Paragraph 6.24:

                           "6.24 PLEDGES OF STOCK. On or before December 15,
                  1998, to take all actions and execute and deliver to the Bank
                  all documentation (including without limitation opinion of
                  counsel), in form and substance satisfactory to the Bank, and
                  to cause all subsidiaries to take such actions and execute and
                  deliver to the Bank such documentation, necessary to grant to
                  the Bank a first position perfected security interest in and
                  to the following shares of stock: sixty-six percent (66%) of
                  the issued and outstanding shares of the common stock of Dura
                  (Barbados) Holding Company Ltd. owned by the Borrower;
                  sixty-six percent (66%) of the issued and outstanding shares
                  of common stock of Dura (Barbados) Ltd. owned by Dura
                  (Barbados) Holding Company Ltd.; and sixty-six percent (66%)
                  of the issued and outstanding shares of common stock of Dura
                  (Burmuda) Trading Company Ltd. owned by Dura (Barbados) Ltd.

                  2.8 The form of compliance certificate appearing as Exhibit A
         to Amendment No. 3 to the Agreement as referenced in Paragraph 6.2(d)
         is amended to read as set forth on Exhibit A to this Amendment.

         3. REPRESENTATIONS AND WARRANTIES. When the Borrower signs this
Amendment, the Borrower represents and warrants to the Bank that: (a) there is
no event which is, or with notice or lapse of time or both would be, a default
under the Agreement (b) the representations and warranties in the Agreement are
true as of the date of this Amendment as if made on the date of this Amendment,
(c) this Amendment is within the Borrower's powers, has been duly authorized,
and does not conflict with any of the Borrower's organizational papers, and (d)
this Amendment does not conflict with any law, agreement, or obligation by which
the Borrower is bound.

         4. EFFECT OF AMENDMENT. Except as provided in this Amendment, all of
the terms and conditions of the Agreement shall remain in full force and effect.





[Signatures continue on next page]

                                         4
<PAGE>


         This Amendment is executed as of the date stated at the beginning of
the Amendment.

                           BANK OF AMERICA NATIONAL TRUST AND SAVINGS
                           ASSOCIATION


                            By: /s/ Susan J. Pepping
                            --------------------------------------------------
                            Name:     Susan J. Pepping
                            Title:    Vice President



                            DURA PHARMACEUTICALS, INC.



                            By: /s/ Erle T. Mast
                            --------------------------------------------------

                            Name:     Erle T. Mast
                            --------------------------------------------------

                            Title:    Vice President, Finance
                            --------------------------------------------------


                            By: /s/ Mitchell R. Woodbury
                            --------------------------------------------------

                            Name: Mitchell R. Woodbury
                            --------------------------------------------------

                            Title  Senior V.P., General Counsel and Secretary
                            --------------------------------------------------



                                         5
<PAGE>

                                   EXHIBIT "A"

                             COMPLIANCE CERTIFICATE


To:    BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION

       Reference is made to that certain Business Loan Agreement dated as of
April 14, 1997, as amended, between Bank of American National Trust and Savings
Association and Dura Pharmaceuticals, Inc., (the "Business Loan Agreement").
Capitalized terms not otherwise defined in this Certificate shall have the
meanings ascribed to them in the Business Loan Agreement. This Certificate is
delivered in accordance with Paragraph 6.2(d) of the Business Loan Agreement.

I.     COMPLIANCE WITH FINANCIAL COVENANTS

       Computations showing compliance with certain paragraphs of the Business
Loan Agreement are as follows:

       PARAGRAPH 6.3; NET WORTH.. As of the date of the attached financial
statements, the Borrower's Net Worth, on a consolidated and cumulative basis, is
at least the sum of:

<TABLE>

             <S>                                                                  <C>
             Calculated Net Worth from the immediately preceding
             fiscal quarter.  Net Worth amount as of the 6/30/98
             fiscal quarter shall begin with $430,000,000.                        $____________

             PLUS, in each quarterly accounting period, commencing with the
             quarter ended 9/30/98 the sum of:

                50% of net income after income taxes
                (without subtracting losses),                                     $____________

                PLUS the net proceeds from the issuance of any equity
                securities (including shares issued upon exercise
                of stock options),                                                $____________

                PLUS any increase in stockholders' equity resulting
                from the conversion of debt securities to equity
                securities                                                        $____________

                PLUS any increase in stockholders equity resulting from
                the transactions as described in the Form S-3 dated
                October 10, 1997                                                  $____________

             MINUS the amount of treasury stock held by the
             Borrower not to exceed $50,000,000.                                  $____________

             minimum permitted                                                    $____________

                                         
<PAGE>

Compliance Certificate
Page 2

             <S>                                                                  <C>
             actual Net Worth                                                     $____________


</TABLE>


       PARAGRAPH 6.4; ADJUSTED FUNDED DEBT TO EBITDA. As of the date of the
attached consolidated financial statements, the ratio of adjusted funded debt to
EBITDA was calculated as follows:

       (a)   The sum of:

<TABLE>

             <S>                                                                  <C>
             All funded debt (including interest bearing obligations)             $____________

             MINUS the sum of the following not to exceed the
             face amount of Notes issues under the Indenture:                     $_____________

                  domestic cash and domestic cash equivalents

                  100% of offshore cash balances not to exceed capital 
                  contributed to Dura (Burmuda) Trading Company Ltd.              $_____________

                  50% of other offshore cash balances                             $_____________
</TABLE>

             DIVIDED BY

       (b)    For the current fiscal quarter and each of the three immediately
              preceding quarters, the sum of :

<TABLE>

             <S>                                                                  <C>
             net income                                                           $_____________

             MINUS interest income                                                $(____________)

             PLUS interest expense                                                $_____________

             PLUS depreciation                                                    $_____________

             PLUS depletion                                                       $_____________

             PLUS amortization                                                    $_____________

             PLUS all federal, state, local and foreign income taxes              $_____________

             EBITDA                                                               $_____________

             EQUALS (EXPRESSED AS A RATIO)                                         __________:1.00


<PAGE>

Compliance Certificate
Page 3


             <S>                                                                  <C>
             maximum permitted:                                                   1.75 to 1.00
</TABLE>

       PARAGRAPH 6.5; MINIMUM EBIT; MINIMUM U.S. EBIT; For the fiscal quarter
ended as of the date of the attached consolidated financial statements,
consolidated EBIT was calculated as follows:

             (a)  the sum of:

<TABLE>

                  <S>                                                              <C>
                  net income                                                       $____________

                  MINUS interest income                                            ($___________)

                  PLUS interest expense                                            $____________

                  PLUS all federal, state, local and foreign income
                  taxes                                                            $____________

                  EQUALS                                                           $____________

                  minimum permitted:                                               $0

</TABLE>

       EBIT for the Borrower and its Domestic Subsidiaries was calculated as
follows:

             (a)  the sum of:
<TABLE>

             <S>                                                                  <C>
             U.S. net income                                                       $____________

             MINUS U.S. interest income                                            ($___________)

             PLUS U.S. interest expense                                            $____________

             PLUS all federal, state, local,
             and foreign taxes                                                     $____________

             EQUALS                                                                $____________

             minimum permitted:

                  quarter ended 9/30/98                                            ($6,000,000)

                  each quarter thereafter                                          ($1,000,000)
</TABLE>

             PARAGRAPH 6.7; OTHER INDEBTEDNESS. As of the date of the attached
       financial statements for the Borrower and its subsidiaries, the
       outstanding amount of debts for 

<PAGE>

Compliance Certificate
Page 4
 
       acquisition of fixed or capital assets permitted under Paragraph 
       6.7 (e) was $_______________.

<TABLE>

             <S>                                                                   <C>
             maximum permitted in any single fiscal year:                          $5,000,000
             (excludes debt pursuant to that certain Indenture
             dated as of July 30, 1997)
</TABLE>

             PARAGRAPH 6.8; LIENS. As of the date of the attached financial
       statements for the Borrower and its subsidiaries, the amount of
       obligations secured by a lien under the last provision of Paragraph 6.8
       was $______________.

<TABLE>
             <S>                                                                   <C>
             maximum permitted in any fiscal year:                                 $5,000,000

</TABLE>
             PARAGRAPH 6.9; CAPITAL EXPENDITURES. As of the date of the attached
       financial statements for the Borrower and its subsidiaries, the total
       amount expended year to date in fiscal year 1998 to acquire fixed or
       capital assets was $_____________.


<TABLE>
             <S>                                                                   <C>
             maximum permitted:                                                    $55,000,000
</TABLE>

             PARAGRAPH 6.11, DIVIDENDS.  As of the date of the attached 
       financial statements for the Borrower and its subsidiaries, the total 
       amount of treasury stock was $_______________.


<TABLE>
             <S>                                                                   <C>
             maximum permitted                                                     $50,000,000
</TABLE>

             PARAGRAPH 6.12; LOANS TO AFFILIATED COMPANIES. Since the date of
       the Business Loan Agreement, the total amount of loans or other
       extensions of credit made by the Borrower or any Domestic Subsidiary
       (including subsidiaries of the Borrower) to its affiliates was
       $___________________;
       and the total investments in Foreign Subsidiaries was $___________;
       and the total Loans to Dura (Bermuda) Trading
       Company, Ltd. was $________________.

<TABLE>
             <S>                                                                   <C>
             maximum permitted:                                                    $10,000,000
             Investments in Foreign Subsidiaries permitted                         $90,000,000
             Loans to Dura (Bermuda) Trading Company, Ltd.
             permitted                                                             $190,000,000
</TABLE>

             PARAGRAPH 6.21 (h); ASSET ACQUISITIONS. Since the date of the
       Business Loan Agreement, the total amount of asset acquisitions,
       including license agreements and product rights, permitted under
       Paragraph 6.21 (h) was $__________________.

<TABLE>
             <S>                                                                   <C>
             Maximum permitted in aggregate                                        $100,000,000
</TABLE>

<PAGE>

Compliance Certificate
Page 5

       II    PERFORMANCE OF OBLIGATIONS

             A review of the activities of Borrower during the fiscal period
       covered by this Certificate has been made under the supervision of the
       undersigned with a view to determining whether during such fiscal period
       Borrower performed and observed all of its obligations. The best
       knowledge of the undersigned, during the fiscal period covered by this
       Certificate, all covenants and conditions have been so performed and
       observed by Borrower and no Event of Default or event which with notice
       or lapse of time or both would be an Event of Default has occurred based
       on the activities of Borrower and is continuing, with any exceptions set
       forth below, in response to which Borrower has taken or propose to take
       the following actions (if none, so state). Without limiting the
       foregoing, the Borrower has no Significant Subsidiaries except those that
       have executed and delivered to Bank a guaranty as required under
       paragraph 6.6 of the Business Loan Agreement.

       III.  COMPLIANCE WITH INDENTURE

       To the best knowledge of the undersigned, no event or circumstance has
       occurred that constitutes violation of the Indenture Agreement, as
       evidenced by the attached copy of the most recent Indenture compliance
       certificate .

       IV.   NO MATERIAL ADVERSE CHANGE

             To the best knowledge of the undersigned, no event or circumstance
       has occurred that constitutes a Material Adverse Effect regarding
       Borrower under Paragraph 8.7 of the Business Loan Agreement since the
       date the most recent Certificate was executed and delivered, with any
       exceptions being set forth below (if none, so state):

<PAGE>

      This Certificate is executed on _________, 19___, by a responsible
       officer of Borrower. the undersigned hereby certify that each and every
       matter contained herein is derived from Borrower's books and records and
       is, to the best knowledge of the undersigned, true and correct.

             Dated: ____________, 19___

                                                 Dura Pharmaceuticals, Inc.


                                                 -------------------------------
                                                 By:

<PAGE>

                                       
                                       
                                 July 1, 1998

Mr. Robert S. Whitehead
P.O. Box 877
16140 El Camino Real
Rancho Santa Fe, CA  92067

Dear Bob:

     This letter will serve as the basis by which you will be employed by Dura
Pharmaceuticals, Inc. (the "Company") as its President.

     During your employment beginning July 1, 1998, you will devote your time,
attention and energy  to the Company.  Such service will become full time on or
after October 15, 1998.  In your capacity as President of the Company, you will
perform such executive duties as are from time to time prescribed by the
Chairman & Chief Executive Officer and the Board of Directors of the Company.
Except for certain interim consultant services to be provided to, and serving
on the Board of, Trega Biosciences and Spiros Development Corporation II, Inc.,
you will not, without the prior written consent of the Company's Board of
Directors, directly or indirectly, during the term of your employment: (A)
render significant services of a business, professional or commercial nature to
any other person or entity, either for compensation or otherwise; or (b) engage
in any business activity competitive with or adverse to the Company's business
or welfare, whether alone, as a partner or member, or as an officer, director,
employee or shareholder of another business entity.  The Company will require
you to execute its standard form of employee confidentiality agreement.

     Your beginning compensation and bonus arrangements have been separately
established by prior communication from the Company.  In addition, you will
receive such fringe benefits as are made available generally to executive
employees of the Company.

     The term of your employment will end on July 1, 1999, unless extended by
mutual agreement; provided, however, that unless the Company notifies you at
least nine (9) calendar months prior to any relevant expiration date of its
intention not to renew your employment, your employment will be, at your option
and unless we mutually agree on a larger extension, automatically extended for
additional successive one-year periods.  However, your employment shall
terminate earlier upon (1) your death, (2) in the event you become physically
or mentally disabled so as to become unable, for a period of more than 120
consecutive working days or for more than 120 working days in the aggregate
during any 12-month period, to perform your duties hereunder on substantially a
full-time basis, in which case the Company may, at its option, terminate your
employment hereunder upon not less than thirty (30) days' written notice, (3)
for Cause, and (4) without Cause upon not less than sixty (60) days' written
notice.  For the purposes of this letter agreement, the Company shall have
"Cause" to terminate your employment 

<PAGE>

Mr. Robert S. Whitehead
July 1, 1998
Page 2


hereunder upon (A) your indictment for a felony, or (B) the engaging by you 
in misconduct which is injurious to the Company or any parent, subsidiary or 
affiliate of the Company, or (C) the violation by you of any of the material 
provisions of this letter agreement. If the Company terminates your 
employment without Cause, you will be entitled to six (6) months' base salary 
at the then current annual rate as severance pay unless there has been a 
Change of Control as defined below.  In the event that there has been a 
Change of Control of the Company during the period in which you serve as 
President pursuant to this letter agreement, if the Company terminates your 
employment without Cause or if there is an Involuntary Termination (as 
defined below), you will be entitled to nine (9) months' base salary at the 
then current annual rate as severance pay.  In the event of payment of 
severance under this agreement, stock option vesting shall continue during 
the severance period.  Other than the benefits described in this letter, you 
will not be entitled to any other salary, benefits or bonus subsequent to 
termination.

     The term "Change of Control" shall mean (i) any transaction or series of
related transactions (including but not limited to, any merger or other
reorganization) in which the ownership of more than 50% of the voting power of
the Company is transferred; (ii) a sale, transfer or other disposition of all
or substantially all of the assets of the Company; (iii) the successful
acquisition of thirty percent (30%) or more of the Company's outstanding voting
stock pursuant to a third-party tender or exchange offer; or (iv) a change in
composition of the Board which occurs because the individuals nominated for
election or re-election by majority vote of those members of the Board elected
at the last shareholder meeting at which there were not contested elections for
Board membership fail to be elected or re-elected by the shareholders.

     The term "Involuntary Termination" shall mean the termination of your
employment with the Company: (i) involuntarily by your dismissal without cause;
or (ii) voluntarily or involuntarily following (a) a change in your position
with the Company which materially reduces your level of responsibility; (b) a
reduction of ten percent (10%) or more in your level of compensation (including
base salary, bonuses or fringe benefits); or (c) a change in your place of
employment which is more than twenty (20) miles from your place of employment
prior to the Change of Control, PROVIDED AND ONLY IF such change or reduction
is effected without your written concurrence.

     If a Change of Control of the Company occurs and the Company does not
survive the transaction as an entity, the Company will require the purchaser to
assume the Company's obligations hereunder, and if the purchaser is a
subsidiary of a parent entity, the Company will require the parent entity to
guarantee the performance of the obligations hereunder or to assume directly
the obligations hereunder.

     You also agree that for a period ending three (3) years after a
termination of your employment with the Company, you will not (a) divert,
directly or indirectly, any business of the Company to any other person or
entity; (b) disrupt, damage, impair or interfere with the Company's
relationships with its employees, customers, agents or vendors; (c) directly or

<PAGE>

Mr. Robert S. Whitehead
July 1, 1998
Page 3

indirectly, solicit or otherwise induce any person to leave his or her
employment with the company; or (d) attempt to do any of the foregoing.

     No provisions of this letter agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in
writing signed by the parties hereto.  No waiver by any party hereto at any
time of any breach by the other party hereto of, or compliance with, any
condition or provision of this letter agreement to be performed by such other
party shall be deemed a waiver of similar or dissimilar provisions or
considerations at the same or at any prior or subsequent time.  This letter
agreement shall be binding upon and inure to the benefit of the Company, its
successors and assigns and you and your heirs, executors, administrators and
legal representatives.  The validity, interpretation, construction and
performance of this letter agreement shall be governed by the laws of the State
of California without reference to conflict of laws.

     This letter agreement shall supersede all prior agreements and
understandings between us, oral or written, with respect to your employment.

     Should this letter reflect your understanding, please sign below and
return one signed copy to me as soon as possible.

                         Very truly yours,

                         DURA PHARMACEUTICALS, INC.


                         /s/ Cam L. Garner
                         ----------------------------------
                         By:  Cam L. Garner
                         Chairman and Chief Executive Officer

ACCEPTED:


/s/ Robert S. Whitehead
- -----------------------
Robert S. Whitehead





<PAGE>
                   DURA PHARMACEUTICALS, INC.

                NOTICE OF GRANT OF STOCK OPTION



     Notice is hereby given of the following stock option grant (the "Option")
to purchase shares of Common Stock of Dura Pharmaceuticals, Inc. (the
"Company"):

     OPTIONEE: Robert S. Whitehead
     
     GRANT DATE:  July 10, 1998
     
     OPTION PRICE:  $21.94 per share
     
     NUMBER OF OPTION SHARES:  250,000 shares
     
     TYPE OF OPTION:  Non-Qualified Stock Option

     EXPIRATION DATE:  July 10, 2008

     EXERCISE SCHEDULE.  The Option shall become exercisable for the Option
Shares in a series of installments as follows:  the Option will become
exercisable for twenty-five percent (25%) of the Option Shares upon completion
of one year of service measured from the Grant Date, and the balance of the
Option Shares shall become exercisable in equal daily installments over a
period of three years measured from the first anniversary of the Grant Date.
In no event shall any additional Option Shares vest after Optionee ceases to be
employed by the Company.

     OTHER PROVISIONS.  Optionee agrees to be bound by the terms and conditions
set forth in the Stock Option Agreement attached hereto as EXHIBIT A.

     NO EMPLOYMENT OR SERVICE CONTRACT.  Nothing in this Notice of Grant or in
the attached Stock Option Agreement shall confer upon Optionee any right to
continued employment for any period of specific duration or interfere with or
otherwise restrict in any way the rights of the Company (or any parent or
subsidiary employing Optionee) or Optionee, which rights are hereby expressly
reserved by each, to terminate Optionee's employment at any time for any reason
whatsoever, with or without cause.



DURA PHARMACEUTICALS, INC.


By:  /s/ Cam L. Garner               /s/ Robert S. Whitehead
    --------------------             -------------------------
    Cam L. Garner                    OPTIONEE
    Chairman & CEO                   Robert S. Whitehead


<PAGE>

                                   EXHIBIT A
                                       
                            STOCK OPTION AGREEMENT
                          DURA PHARMACEUTICALS, INC.
                                       
                                   RECITALS
                                       
     A.  The Board of Directors of Dura Pharmaceuticals, Inc. (the
"Corporation") grants stock options to selected individuals for the purpose of
attracting and retaining the services of persons who contribute to the growth
and financial success of the Corporation.

     B.  Optionee is a person who the Corporation believes has and will
contribute to the growth and financial success of the Corporation.

                                   AGREEMENT

     NOW, THEREFORE, it is hereby agreed as follows:

     1.  GRANT.  Corporation hereby grants Optionee an option ("Option") to
purchase shares of Common Stock of the Corporation ("Option shares") as
specified in the attached Notice of Grant of Stock Option (the "Grant Notice")
at an exercise price specified in the Grant Notice (the "Exercise Price")
subject to the terms and conditions of this Agreement and the Grant Notice.

     2.  VESTING OR EXERCISE PERIOD.  Subject to the terms and conditions of
this Agreement and that certain letter agreement dated July 1, 1998 between the
Corporation and Optionee, this Option will vest as set forth in the Grant
Notice.  Provided, however, that this Option will expire at midnight on the
expiration date shown in the Grant Notice, which date is 10 years after the
Grant Date set in the Grant Notice (the "Expiration Date"), and this Option
must be exercised, if at all, on or before the Expiration Date.

     3.  DESIGNATION OF OPTION TYPE.  Optionee understands that the Option is a
non-qualified stock option.

     4.  TERMINATION.

          (a)  If Optionee ceases to be an employee of the Corporation or a
subsidiary or parent of the Corporation for any reason except death or
disability, this Option may be exercised (for shares vested on the date
Optionee ceased to be an employee) within THREE (3) MONTHS after the date
Optionee ceased to be an employee, but in no event later than the Expiration
Date.

                                         1
<PAGE>

          (b)  If Optionee ceases to be an employee of the Corporation or a
subsidiary or parent of the Corporation because of disability or death, this
Option may be exercised (for shares vested on the date Optionee ceased to be an
employee) within TWELVE (12) MONTHS after Optionee ceased to be an employee,
but in no event later than the Expiration Date.

For purposes of this section, Optionee will be deemed an "employee" if Optionee
is providing services as an independent contractor or consultant to the
Corporation or a subsidiary or parent of the Corporation.

     5.  EXERCISE.

          (a)  This Option is exercisable by delivery of an executed Notice of
Exercise, in a form satisfactory to the Corporation.  The Notice of Exercise
will set forth the Optionee's election to exercise this Option and the number
of Option Shares being purchased.

          (b)  Full payment of the Exercise Price must be made in one or more
of the following forms:

               (1)  check made payable to the Corporation;

               (2)  promissory note;

               (3)  shares of Common Stock of the Corporation held for the
requisite period to avoid a charge to the Corporation's earnings and valued as
of the Exercise Date; or

               (4)  delivery of a properly executed Notice of Exercise,
together with irrevocable instructions to a broker to promptly deliver to the
Corporation the amount of sale or loan proceeds to pay the Exercise Price.

For purposes of subparagraphs (2) and (4) immediately above, the effective date
of the exercise (the "Exercise Date") will be the date the Notice of Exercise
is delivered to the Corporation.  In all other cases, the Exercise Date will be
the date on which the Notice of Exercise and actual payment are received by the
Corporation.

     6.  TRANSFERABILITY.  This Option may be assigned in whole or in part
during the Optionee's lifetime.  The assigned portion may only be exercised by
the person or persons who acquire a proprietary interest in the Option pursuant
to the assignment. The terms applicable to the assigned portion shall be the
same as those in effect for the Option immediately prior to such assignment and
shall be set forth in such documents issued to the assignee as the Corporation
may deem appropriate.  This Option may, after Optionee's death, be transferred
by Will or state law of descent and distribution.  

                                         2
<PAGE>

The terms of this Option are binding upon the executors, administrators, 
successors and assigns of Optionee.

     7.  WITHHOLDING.  Optionee agrees, as a condition to the exercise of this
Option, to make appropriate arrangements with the Corporation or a subsidiary
or parent of the Corporation employing Optionee for the satisfaction of any
federal, state or local income or employment tax requirements applicable to the
exercise of this Option or to the sale of shares acquired under this Option.

     8.  ADJUSTMENTS.  If any change is made to the Option Shares (whether by
reason of merger, consolidation, reorganization, recapitalization, stock
dividend, stock split, combination of shares, exchange of shares or other
change in corporate or capital structure of the Corporation) then the
Corporation will make appropriate adjustments to the kind, price per share and
maximum number of shares subject to this Option.  Adjustments made by the
Corporation will be final, binding and conclusive.  No adjustment will be made
if such change results in the acceleration and termination of all outstanding
options in accordance with the Acceleration and Termination of Options
provisions of the following paragraph.

     9.  ACCELERATION AND TERMINATION OF OPTIONS.  In the event of one or more
of the following transactions ("Corporate Transactions"):

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

          (b)  the sale, transfer or other disposition of all or substantially
all of the assets of the Corporation,

          (c)  any reverse merger in which the corporation is the surviving
entity but in which 50% or more of the Corporation's outstanding voting stock
is transferred to holders different from those who held such securities
immediately before the merger, or,

          (d)  an acquisition by any person or related group of persons (other
than the Corporation or a person that directly or indirectly controls, is
controlled by or is under common control with, the Corporation) of ownership of
more than 50% of the Corporation's outstanding Common Stock, pursuant to a
tender or exchange offer

then the Option holder may exercise this Option for all of the Option Shares,
including shares previously unvested, provided the Option is exercised
immediately before the consummation of the Corporate Transaction and before the
Expiration Date.  Upon consummation of the Corporate Transaction, this Option,
to the extent not previously exercised, will terminate and cease to be
exercisable.

                                         3
<PAGE>

     10.  NOTICES.  Any notice required to be given to the Corporation under
this Agreement will be in writing and addressed to the Corporation and its
corporate offices.  Any notice required to be given to Optionee under this
Agreement will be in writing and addressed to Optionee at the address specified
in Optionee's employment file maintained by the Corporation.  All notices will
be deemed to have been given or delivered upon personal delivery or upon
deposit in the United State mail, postage prepaid and properly addressed to the
party to be notified.

     11.  NO EMPLOYMENT CONTRACT.  This Option shall not confer upon Optionee
any right to continue in the employ of or to provide services to the
Corporation or a subsidiary or parent of the Corporation or constitute any
contract or agreement of employment or services or interfere in any way with
the right of the Corporation or a subsidiary or parent of the Corporation to
reduce such Optionee's compensation or to terminate Optionee's employment or
services at any time, with or without cause.

     12.  COMPLIANCE.  This Option may not be exercised unless the exercise is
in compliance with all applicable requirements of federal and state law and
with the requirements of any stock exchange on which the Corporation's Common
Stock may be listed at the time of exercise.

     13.  SHAREHOLDER RIGHTS.  Optionee will have no shareholder rights with
respect to any Option Shares prior to the Exercise Date of the option.

     14.  CORPORATION RIGHTS.  The grant this Option shall in no way affect the
right of the Corporation to adjust, reclassify, reorganize or otherwise change
its capital or business structure or to merge, consolidate, dissolve, liquidate
or sell or transfer all or any part of its business or assets.




                                         4




<PAGE>

EXHIBIT 11

                           DURA PHARMACEUTICALS, INC.
               STATEMENTS RE COMPUTATIONS OF NET INCOME PER SHARE
                     IN THOUSANDS, EXCEPT PER SHARE AMOUNTS
                                   (UNAUDITED)

<TABLE>
<CAPTION>

                                                                      THREE MONTHS ENDED   NINE MONTHS ENDED
                                                                         SEPTEMBER 30,       SEPTEMBER 30,
                                                                    --------------------   -----------------
                                                                        1997      1998      1997      1998
                                                                    ----------   -------   -------  --------
     <S>                                                            <C>          <C>       <C>       <C>
     NET INCOME PER SHARE - BASIC

     Net Income .................................................   $   11,325   $ 2,424   $29,395   $17,765
                                                                    ----------   -------   -------  --------
                                                                    ----------   -------   -------  --------

     Weighted Average Number of Common Shares ...................       43,875    46,367    43,633    46,216
                                                                    ----------   -------   -------  --------
                                                                    ----------   -------   -------  --------

     Net Income per Share .......................................   $     0.26   $  0.05   $  0.67   $  0.38
                                                                    ----------   -------   -------  --------
                                                                    ----------   -------   -------  --------
     NET INCOME PER SHARE - DILUTED

     Net Income .................................................   $   11,325   $ 2,424   $29,395   $17,765
                                                                    ----------   -------   -------  --------
                                                                    ----------   -------   -------  --------
     Weighted Average Number of Common and Common
       Equivalent Shares Assuming Issuance of All
       Dilutive Contingent Shares:
         Common stock ...........................................       43,875    46,367    43,633    46,216
         Stock options ..........................................        1,124       482     1,138       602
         Warrants ...............................................        2,607       729     2,621       829
                                                                    ----------   -------   -------   -------
            Total ...............................................       47,606    47,578    47,392    47,647
                                                                    ----------   -------   -------  --------
                                                                   ----------   -------   -------  --------

        Net Income per Share ....................................   $     0.24   $  0.05   $  0.62   $  0.37
                                                                    ----------   -------   -------  --------
                                                                    ----------   -------   -------  --------

</TABLE>


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S CONSOLIDATED BALANCE SHEET AS OF SEPTEMBER 30, 1998, AND THE RELATED
CONSOLIDATED STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED SEPTEMBER 30,
1998 AND THE NOTES THERETO, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH CONSOLIDATED FINANCIAL STATEMENTS AND NOTES.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                          57,482
<SECURITIES>                                   310,950
<RECEIVABLES>                                   27,097
<ALLOWANCES>                                         0
<INVENTORY>                                     12,730
<CURRENT-ASSETS>                               408,259
<PP&E>                                          79,451
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                 812,705
<CURRENT-LIABILITIES>                           58,313
<BONDS>                                        287,500
                                0
                                          0
<COMMON>                                            46
<OTHER-SE>                                     453,420
<TOTAL-LIABILITY-AND-EQUITY>                   812,705
<SALES>                                              0
<TOTAL-REVENUES>                               144,067
<CGS>                                           21,348
<TOTAL-COSTS>                                  124,408
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               9,155
<INCOME-PRETAX>                                 26,931
<INCOME-TAX>                                     9,166
<INCOME-CONTINUING>                             17,765
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    17,765
<EPS-PRIMARY>                                     0.38
<EPS-DILUTED>                                     0.37
        

</TABLE>


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