SECURITIES AND EXCHANGE COMMISSION
                            Washington, DC 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 June 30, 2001

                                     OR

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

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

                       Commission file number: 39040


                     ENDO PHARMACEUTICALS HOLDINGS INC.
           (Exact Name of Registrant as Specified in Its Charter)


                     Delaware                        13-4022871
         (State or other jurisdiction of          (I.R.S. Employer
          incorporation or organization)           Identification
                                                      Number)


                             100 Painters Drive
                      Chadds Ford, Pennsylvania 19317
                  (Address of Principal Executive Offices)


                               (610) 558-9800
            (Registrant's Telephone Number, Including Area Code)



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

     The aggregate number of shares of the Registrant's common stock
outstanding as of August 13, 2001 was 89,138,950.


                     ENDO PHARMACEUTICALS HOLDINGS INC.

                            REPORT ON FORM 10-Q
                FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2001


                             TABLE OF CONTENTS

                                                                          Page

                       PART I. FINANCIAL INFORMATION


Item 1.     Financial Statements

            Consolidated Balance Sheets (Unaudited)
                  June 30, 2001 and December 31, 2000.........................1

            Consolidated Statements of Operations (Unaudited)
                  Three and Six Months Ended June 30, 2001 and 2000...........2

            Consolidated Statements of Cash Flows (Unaudited)
                  Six Months Ended June 30, 2001 and 2000.....................3

            Notes to Consolidated Financial Statements (Unaudited)............4

Item 2.     Management's Discussion and Analysis of Financial Condition
            and Results of Operations.........................................7

            Overview..........................................................7

            General...........................................................8

            Three Months Ended June 30, 2001 Compared to the Three Months
            Ended June 30, 2000...............................................8

            Six Months Ended June 30, 2001 Compared to the Six Months Ended
             June 30, 2000....................................................9

            Liquidity and Capital Resources..................................10

Item 3.     Quantitative and Qualitative Disclosures About Market Risk.......11


                         PART II. OTHER INFORMATION


Item 1.     Legal Proceedings................................................12

Item 2.     Changes in Securities and Use of Proceeds........................12

Item 3.     Defaults Upon Senior Securities..................................12

Item 4.     Submission of Matters to a Vote of Security Holders..............12

Item 5.     Other Information................................................12

Item 6.     Exhibits and Reports on Form 8-K.................................12


- -------------------------------------------------------------------------------
Forward Looking Statements
- -------------------------------------------------------------------------------


This Report contains forward-looking statements, within the meaning of
Section 27A of the Securities Act of 1933 and Section 21E of the Securities
Exchange Act of 1934, as amended, that are based on management's beliefs
and assumptions, current expectations, estimates and projections.
Statements that are not historical facts, including statements which are
preceded by, followed by, or that include, the words "believes,"
"anticipates," "plans," "expects" or similar expressions and statements.
Endo's estimated or anticipated future results, product performance or
other non-historical facts are forward-looking and reflect Endo's current
perspective on existing trends and information. Many of the factors that
will determine the Company's future results are beyond the ability of the
Company to control or predict. These statements are subject to risks and
uncertainties and, therefore, actual results may differ materially from
those expressed or implied by these forward-looking statements. The reader
should not rely on any forward-looking statement. The Company undertakes no
obligations to update any forward-looking statements whether as a result of
new information, future events or otherwise. Several important factors, in
addition to the specific factors discussed in connection with these
forward-looking statements individually, could affect the future results of
Endo and could cause those results to differ materially from those
expressed in the forward-looking statements contained herein. Important
factors that may affect future results include, but are not limited to:
market acceptance of the Company's products and the impact of competitive
products and pricing; dependence on sole source suppliers; the success of
the Company's product development activities and the timeliness with which
regulatory authorizations and product launches may be achieved; successful
compliance with extensive, costly, complex and evolving governmental
regulations and restrictions; the availability on commercially reasonable
terms of raw materials and other third party manufactured products;
exposure to product liability and other lawsuits and contingencies;
dependence on third party suppliers, distributors and collaboration
partners; the ability to timely and cost effectively integrate
acquisitions; uncertainty associated with pre-clinical studies and clinical
trials and regulatory approval; uncertainty of market acceptance of new
products; the difficulty of predicting FDA approvals; risks with respect to
technology and product development; the effect of competing products and
prices; uncertainties regarding intellectual property protection;
uncertainties as to the outcome of litigation; changes in operating
results; impact of competitive products and pricing; product development;
changes in laws and regulations; customer demand; possible future
litigation; availability of future financing and reimbursement policies of
government and private health insurers and others; and other risks and
uncertainties detailed in Endo's Registration Statement on Form S-4 filed
with the Securities and Exchange Commission on June 9, 2000, as amended.
Readers should evaluate any statement in light of these important factors.



                                   PART I

                           FINANCIAL INFORMATION

Item 1.   Financial Statements

                     ENDO PHARMACEUTICALS HOLDINGS INC.
                  CONSOLIDATED BALANCE SHEETS (UNAUDITED)
                     (In thousands, except share data)

                                                         June 30,  December 31,
                                                           2001          2000
                                                          ------        ------

                                        ASSETS
CURRENT ASSETS:
     Cash and cash equivalents........................    $ 67,027    $ 59,196
     Accounts receivable, net.........................      71,084      78,312
     Inventories......................................      23,438      29,746
     Prepaid expenses.................................       3,206       3,496
     Deferred income taxes............................       1,850       2,304
                                                           -------      ------

          Total current assets........................    166,605      173,054
                                                          --------     -------

PROPERTY AND EQUIPMENT, Net...........................       6,742       5,742
GOODWILL AND OTHER INTANGIBLES, Net...................     260,766     284,560
DEFERRED INCOME TAXES.................................       1,205         736
RESTRICTED CASH.......................................         150         150
OTHER ASSETS .........................................       5,689       3,598
                                                          --------     -------
TOTAL ASSETS .........................................    $441,157    $467,840
                                                          ========    ========

                    LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES:
     Accounts payable.................................    $ 17,678    $ 15,855
     Accrued expenses.................................      46,388      45,520
     Income taxes payable.............................       1,008       2,549
     Current portion of long-term debt................      15,333      36,371
                                                            ------      ------

          Total current liabilities...................      80,407     100,295
                                                            ------     -------


LONG-TERM DEBT, Less current portion..................     156,075     162,154
OTHER LIABILITIES.....................................      18,009       7,218

COMMITMENTS AND CONTINGENCIES

STOCKHOLDERS' EQUITY
     Preferred Stock, $.01 par value; 40,000,000 shares
        authorized; none issued
     Common Stock, $.01 par value; 175,000,000 shares
        authorized; and 89,138,950 issued and outstanding
        at June 30, 2001 and December 31, 2000........         891         891
     Additional paid-in capital.......................     385,955     385,955
     Accumulated deficit..............................    (200,180)   (188,673)
                                                           --------   ---------
          Total Stockholders' Equity..................     186,666     198,173

TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY............    $441,157    $467,840
                                                           --------   ---------

               See Notes to Consolidated Financial Statements






                                                     ENDO PHARMACEUTICALS HOLDINGS INC.

                                               CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
                                                (In thousands, except share and per share data)




                                                                  Three Months Ended          Six Months Ended
                                                                       June 30,                   June 30,

                                                                  2001          2000         2001         2000
                                                                 ------        ------       ------       ------

                                                                                           
NET SALES.............................................         $ 67,857      $ 41,934    $ 107,239     $ 68,934
COST OF SALES.........................................           21,032        16,271       33,681       28,333
                                                                 ------        ------       ------       ------

GROSS PROFIT..........................................           46,825        25,663       73,558       40,601
                                                                 ------        ------       ------       ------

COSTS AND EXPENSES:
     Selling, general and administrative..............           19,453        14,065       35,343       26,138
     Research and development.........................            8,336         4,668       17,510        7,696
     Depreciation and amortization....................           12,377         2,175       24,776        4,326
     Separation benefits..............................                                                   22,034
                                                                 ------        ------       ------       ------

OPERATING INCOME (LOSS) ..............................            6,659         4,755      (4,071)      (19,593)
                                                                 ------        ------       ------       ------
INTEREST EXPENSE, Net of interest income of $726,
 $527, $1,815 and $1,027, respectively................            2,903         3,781       6,443         7,718
                                                                 ------        ------       ------       ------

INCOME (LOSS) BEFORE INCOME TAX (BENEFIT)                         3,756           974     (10,514)      (27,311)
                                                                 ------        ------       ------       ------

INCOME TAX (BENEFIT)..................................            1,025           366         993       (10,325)
                                                                 ------        ------       ------       ------

NET INCOME (LOSS).....................................         $  2,731       $   608    $ (11,507)   $ (16,986)
                                                                 ======        ======       ======       ======
NET INCOME (LOSS) PER SHARE:

     Net Income (Loss) per Share:
          Basic.......................................         $    .03       $   .01    $    (.13)   $    (.24)

          Diluted.....................................         $    .03       $   .01    $    (.13)   $    (.24)


     Weighted Average Shares:
          Basic.......................................       89,138,950    71,328,424    89,138,950    71,326,680
          Diluted.....................................       89,212,515    71,328,424    89,138,950    71,326,680


                                               See Notes to Consolidated Financial Statements.







                                     ENDO PHARMACEUTICALS HOLDINGS INC.

                           CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
                                               (In thousands)

                                                                                             Six Months Ended
                                                                                                 June 30,
                                                                                               2001      2000

OPERATING ACTIVITIES:
                                                                                               
     Net Loss...........................................................................  $ (11,507) $ (16,986)
     Adjustments to reconcile net loss to net cash provided by operating activities:
          Depreciation and amortization...............................................       24,776      4,326
          Amortization of deferred financing costs....................................          855        600
          Accretion of promissory notes...............................................        2,395      1,506
          Deferred income taxes.......................................................           15   (10,401)
          Compensation related to stock options.......................................                  20,782
     Changes in assets and liabilities which provided (used) cash:
          Accounts receivable.........................................................        7,228     18,465
          Inventories.................................................................        6,308    (11,074)
          Other assets................................................................       (2,639)        81
          Accounts payable............................................................        1,823      2,591
          Accrued expenses............................................................          868     (1,909)
          Income taxes payable........................................................       (1,541)
          Other liabilities...........................................................       10,791     10,023

               Net cash provided by operating activities..............................       39,342     18,004
                                                                                             ------     ------

INVESTING ACTIVITIES:
     Purchase of property and equipment...............................................      (2,000)      (507)
                                                                                             ------     ------
               Net cash used in investing activities..................................      (2,000)      (507)
                                                                                             ------     ------

FINANCING ACTIVITIES:
     Repayments of long-term debt.....................................................     (29,511)    (9,674)
     Issuance of Class A Common Stock.................................................                      7
                                                                                           --------    -------

               Net cash used in financing activities..................................     (29,511)    (9,667)
                                                                                           --------    -------

NET INCREASE IN CASH AND CASH EQUIVALENTS.............................................       7,831      7,830
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD........................................      59,196     22,028
                                                                                           --------    -------
CASH AND CASH EQUIVALENTS, END OF PERIOD..............................................     $67,027   $ 29,858
                                                                                           ========   ========

SUPPLEMENTAL INFORMATION:
     Interest Paid....................................................................     $ 4,958    $ 6,576

     Income Taxes Paid................................................................     $ 2,786    $    75



              See Notes to Consolidated Financial Statements.




                     ENDO PHARMACEUTICALS HOLDINGS INC.

                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                (UNAUDITED)
                   FOR THE SIX MONTHS ENDED JUNE 30, 2001

1.    CONSOLIDATED FINANCIAL STATEMENTS

     In the opinion of management, the accompanying condensed consolidated
financial statements of Endo Pharmaceuticals Holdings Inc. ("Endo" or the
"Company") and its subsidiaries, which are unaudited, include all normal
and recurring adjustments necessary to present fairly the Company's
financial position as of June 30, 2001 and the results of operations and
cash flows for the periods presented. The accompanying consolidated balance
sheet as of December 31, 2000 is derived from the Company's audited
financial statements. Certain information and footnote disclosure normally
included in financial statements prepared in accordance with generally
accepted accounting principles have been condensed or omitted as
promulgated by APB Opinion No. 28 and Rule 10.01 of Regulation S-X. These
condensed consolidated financial statements should be read in conjunction
with the consolidated financial statements and notes thereto as of and for
the year ended December 31, 2000 contained in the Company's Annual Report
on Form 10-K.


2.    MERGER

      On November 29, 1999, the Company and Algos Pharmaceutical
Corporation ("Algos") announced that they had entered into a definitive
merger agreement providing for the merger (the "Merger") of Algos into Endo
Inc., a newly formed, wholly owned subsidiary of the Company. The Merger,
which was completed on July 17, 2000, has been accounted for by the Company
using the purchase method of accounting. The assets acquired and
liabilities assumed of Algos were recorded at their fair values at the date
of acquisition based on an independent appraisal. The assets acquired and
liabilities assumed, results of operations and cash flows of Algos have
been included in the Company's financial statements prospectively for
reporting periods beginning July 17, 2000.

      The total purchase price of $248.6 million (including approximately
$7.0 million in transaction fees) was determined using an average closing
price of the Algos common stock for a reasonable period of time before and
after the April 17, 2000 measurement date of $13.54 and the 17,832,106
common shares and common share equivalents of Algos outstanding at the date
of the Merger (including 21,580 outstanding Algos Series A Warrants). The
allocation of the fair value of the assets acquired and liabilities assumed
includes an allocation to workforce in place of $11.9 million which is
being amortized over its estimated useful life of two years, patents of
$3.2 million which is being amortized over their estimated useful lives of
17 years and goodwill of $104.8 million which is being amortized over its
estimated useful life of three years. In addition, the Company recorded
estimated liabilities for exit costs of $3.1 million related to
non-cancelable lease payments and $1.1 million for employee relocation
costs. The balance of the estimated liabilities for exit costs is unchanged
as of June 30, 2001. Also, as a result of the Merger, it was determined
that the utilization of the Company's federal deferred tax assets is
uncertain. Accordingly, a valuation allowance has been recorded to fully
reserve its federal deferred tax assets.

     The Merger included various on-going projects to research and develop
innovative new products for pain management. As a result, the allocation of
the fair value of the assets acquired and liabilities assumed includes an
allocation to purchased in-process research and development ("IPRD") of
$133.2 million which was immediately expensed in the consolidated statement
of operations on the acquisition date. The methodology used by the Company
on the acquisition date in determining the value of IPRD was to: 1)
identify the various on-going projects that the Company will prioritize and
continue; 2) project net future cash flows of the identified projects based
on current demand and pricing assumptions, less the anticipated expenses to
complete the development program, drug application, and launch the products
(significant net cash inflows from MorphiDex(R) were projected in 2003); 3)
discount these cash flows based on a risk-adjusted discount rates ranging
from 25% to 33% (weighted average discount rate of 27%); and 4) apply the
estimated percentage of completion to the discounted cash flow for each
individual project ranging from 4% to 81%. The discount rate was determined
after considering various uncertainties at the time of the Merger,
primarily the stage of project completion.

      The Company allocated fair value to the three opioid analgesic
projects of Algos: MorphiDex(R), HydrocoDexTM and OxycoDexTM. The
development program for a new pharmaceutical substance involves several
different phases prior to submission of an application with the appropriate
governmental agency for approval. Such application must be approved prior
to marketing a new drug. Despite the Company's commitment to completion of
the research and development projects, many factors may arise that could
cause a project to be withdrawn or delayed, including the inability to
prove the safety and efficacy of a drug during the development process.
Upon withdrawal, it is unlikely that the development activities will have
alternative use. If these projects are not successfully developed, the
Company's results of operations and financial position in a future period
could be negatively impacted.


3.    RECAPITALIZATION

     In connection with the Merger, the Company effected a recapitalization
(the "Recapitalization") of its common stock, par value $.01 per share
("Common Stock"), class A common stock, par value $.01 per share ("Class A
Common Stock") and preferred stock. The Recapitalization was effected on
July 17, 2000 through a stock dividend of approximately 64.59 shares of
Common Stock for each share of Common Stock and Class A Common Stock
outstanding immediately prior to the Merger. Immediately prior to the
Merger, the Company amended and restated its certificate of incorporation
to effect the Recapitalization and to eliminate its Class A Common Stock.
The effect of the Recapitalization has been reflected in the accompanying
financial statements.


4.    RECENT ACCOUNTING PRONOUNCEMENTS

      In June 1998, the Financial Accounting Standards Board (FASB) issued
SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities,
which is effective for all fiscal years beginning after June 15, 1999. SFAS
133 establishes accounting and reporting standards for derivative
instruments, including certain derivative instruments embedded in other
contracts and for hedging activities. All derivatives, whether designated
in hedging relationships or not, are required to be recorded on the balance
sheet at fair value. If the derivative is designated in a fair value hedge,
the changes in the fair value of the derivative and the hedged item are
recognized in earnings. If the derivative is designated as a cash flow
hedge, changes in the fair value of the derivative are recorded in other
comprehensive income (OCI) and are recognized in the income statement when
the hedged item affects earnings. SFAS 133 defines new requirements for
designation and documentation of hedging relationships as well as on-going
effectiveness assessments in order to use hedge accounting. A derivative
that does not qualify as a hedge will be marked to fair value through
earnings.

      Effective January 1, 2001, the Company recorded $228,000 as an
accumulated transition adjustment as a reduction to earnings relating to
derivative instruments that do not qualify for hedge accounting under SFAS
133. This amount is included in Interest Expense in the accompanying
financial statements.

       In December 1999, the Securities and Exchange Commission (the "SEC")
issued Staff Accounting Bulletin, SAB 101, entitled "Revenue Recognition in
Financial Statements" as amended, effective as of October 1, 2000, which
summarizes the SEC's views in applying generally accepted accounting
principles to revenue recognition. The adoption of this guideline had no
effect on the Company's financial statements.

      In March 2000, the FASB issued Financial Accounting Series
Interpretation No. 44 entitled "Accounting for Certain Transactions
involving Stock Compensation," which provides clarification to Accounting
Principles Board Opinion No. 25 (APB No. 25), "Accounting for Stock Issued
to Employees." The adoption of this interpretation had no effect on the
Company's financial statements.

      In June 2001, the Financial Accounting Standards Board ("FASB")
issued Statement of Financial Accounting Standards ("SFAS") No. 142,
Goodwill and Other Intangible Assets, which is effective for fiscal years
beginning after December 15, 2001. SFAS No. 142 establishes revised
reporting requirements for goodwill and other intangible assets. Upon
adoption, the Company will no longer amortize goodwill unless evidence of
an impairment exists. Goodwill will be evaluated for impairment on an
annual basis. Although the Company is currently evaluating all of the
provisions of SFAS No. 142, the Company does believe the adoption of SFAS
No. 142 will have a material impact on the results of operations of the
Company. The Company has $241.7 million of goodwill as of June 30, 2001 and
has recorded $20.4 million of goodwill amortization for the six months
ended June 30, 2001. The Company will adopt the provisions of SFAS No. 142
effective January 1, 2002.


5.    COMMITMENTS AND CONTINGENCIES

     The Company has entered into employment agreements with certain
members of management.

     The Company is subject to various claims arising out of the normal
course of business with respect to commercial matters, including product
liabilities, patent infringement matters, governmental regulation and other
actions. In the opinion of management, the amount of ultimate liability
with respect to these actions will not materially affect the financial
position, results of operations or liquidity of the Company.

     Prior to July 17, 2000, Kelso & Company provided financial advisory
services to the Company for an annual fee of $347,000 plus the
reimbursement of expenses. In connection with the Merger, which was
completed on July 17, 2000, the Company terminated this agreement by making
a one-time payment to Kelso of $1.5 million, which was charged to expenses
as of July 17, 2000.


6.    SEPARATION BENEFITS

     During the period ended March 31, 2000 and immediately thereafter, the
Company entered into separation and release agreements with two executives.
The agreements were accounted for during the period ended March 31, 2000 as
all material terms and conditions were known as of March 31, 2000.
Severance and other termination benefits provided by the agreements
amounting to $1,252,000 were accrued as of March 31, 2000.

     The separation and release agreements provided that certain options
granted to the two executives under existing option plans became fully
vested on the effective dates of the agreements. The agreements also
provided that other options previously granted to the executives would
terminate. The agreements further provided terms and conditions for the
exercise of the vested options. Cost related to stock options resulting
from the agreements resulted in a charge of $20,782,000 during the period
ended March 31, 2000.

                                   ******


Item 2.   Management's Discussion and Analysis of Financial Condition and
          Results of Operations.

     Except for the historical information contained in this Report, this
Report, including the following discussion, contains forward-looking
statements that involve risks and uncertainties.


Overview

      The Company, through its wholly owned subsidiaries, Endo
Pharmaceuticals Inc. and Endo Inc., is engaged in the research,
development, sales and marketing of branded and generic prescription
pharmaceuticals used primarily for the treatment and management of pain.
Branded products comprised approximately 68%, 76% and 71% of net sales for
the year ended December 31, 1999, the year ended December 31, 2000 and the
six months ended June 30, 2001, respectively. On August 26, 1997, an
affiliate of Kelso & Company and then members of management entered into an
asset purchase agreement with the then DuPont Merck Pharmaceutical Company
to acquire certain branded and generic pharmaceutical products and
exclusive worldwide rights to a number of new chemical entities in the
DuPont research and development pipeline from DuPont Merck through the
newly-formed Endo Pharmaceuticals. On November 19, 1999, the Company formed
Endo Inc. as a wholly owned subsidiary to effect the acquisition of Algos.
The stock of Endo Pharmaceuticals Inc. and the stock of Endo Inc. are the
only assets of the Company, and the Company has no other operations or
business. The Company was formed as a holding company and incorporated on
November 18, 1997 under the laws of the state of Delaware and has its
principal executive offices at 100 Painters Drive, Chadds Ford,
Pennsylvania 19317 (telephone number: (610) 558-9800).

      On July 17, 2000, the Company completed its merger with Algos (the
"Merger"). In the Merger, the Company issued to the former Algos
stockholders, in the aggregate, 17,810,526 shares of Company Common Stock
and 17,810,526 warrants to purchase in the aggregate up to 20,575,507
additional shares of Company Common Stock in certain circumstances as more
fully described in the Company's Registration Statement on Form S-4 filed
with the Securities and Exchange Commission on June 9, 2000, as amended. In
the Merger, the Company also issued to the pre-Merger Endo stockholders, in
the aggregate, 71,328,424 warrants to purchase in the aggregate up to
29,720,177 additional shares of Common Stock in certain other circumstances
as more fully described in the Company's Registration Statement on Form S-4
filed with the Securities and Exchange Commission on June 9, 2000, as
amended.

      The Merger has been accounted for by the Company using the purchase
method of accounting. The assets acquired and liabilities assumed of Algos
have been recorded at their fair values based on an independent appraisal.

      The assets acquired and liabilities assumed, results of operations
and cash flows of Algos have been included in the Company's financial
statements and Management's Discussion and Analysis of Financial Conditions
and Results of Operations prospectively for reporting periods beginning
July 17, 2000.

      The Merger included various on-going projects to research and develop
innovative new products for pain management. As a result, the allocation of
the fair value of the assets acquired and liabilities assumed includes an
allocation to purchased in-process research and development ("IPRD") of
$133.2 million which was immediately expensed in the consolidated statement
of operations on the acquisition date. The methodology used by the Company
on the acquisition date in determining the value of IPRD was to: 1)
identify the various on-going projects that the Company will prioritize and
continue; 2) project net future cash flows of the identified projects based
on current demand and pricing assumptions, less the anticipated expenses to
complete the development program, drug application, and launch the products
(significant net cash inflows from MorphiDex(R) were projected in 2003); 3)
discount these cash flows based on a risk-adjusted discount rates ranging
from 25% to 33% (weighted average discount rate of 27%); and 4) apply the
estimated percentage of completion to the discounted cash flow for each
individual project ranging from 4% to 81%. The discount rate was determined
after considering various uncertainties at the time of the merger,
primarily the stage of project completion.

      The Company allocated fair value to the three opioid analgesic
projects of Algos: MorphiDex(R), HydrocoDexTM and OxycoDexTM. The
development program for a new pharmaceutical substance involves several
different phases prior to submission of an application with the appropriate
governmental agency for approval. Such application must be approved prior
to marketing a new drug. Despite the Company's commitment to completion of
the research and development projects, many factors may arise that could
cause a project to be withdrawn or delayed, including the inability to
prove the safety and efficacy of a drug during the development process.
Upon withdrawal, it is unlikely that the development activities will have
alternative use. If these projects are not successfully developed, the
Company's results of operations and financial position in a future period
could be negatively impacted.

      The Company's quarterly results have fluctuated in the past, and may
continue to fluctuate. These fluctuations are primarily due to the timing
of new product launches, purchasing patterns of the Company's customers,
market acceptance of the Company's products and the impact of competitive
products and pricing.

Results of Operations

General

      Goodwill and other intangibles represent a significant portion of the
assets and stockholders' equity of the Company. As of June 30, 2001,
goodwill and other intangibles comprised approximately 59% of total assets
and 140% of stockholders' equity. The Company assesses the recoverability
and the amortization period of goodwill by determining whether the amount
can be recovered through undiscounted net cash flows of the businesses
acquired over the remaining amortization period. The Company reviews for
the impairment of long-lived assets whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be
recoverable, such as in the event of a significant adverse change in
business conditions or a significant change in the intended use of an
asset. An impairment loss would be recognized when estimated undiscounted
future cash flows expected to result from the use of the asset are less
than its carrying amount. Assets are grouped at the lowest level for which
there are identifiable cash flows that are largely independent from other
asset groups. The Company uses the discounted future expected net cash
flows, as its estimate of fair value, to determine the amount of impairment
loss. As a result of the significance of goodwill and other intangibles,
amortization of goodwill and other intangibles will significantly impact
the results of operations of the Company. In addition, the Company's
results of operations and financial position in a future period could be
negatively impacted should an impairment of goodwill and other intangible
assets occur.

Three Months Ended June 30, 2001 Compared to the Three Months Ended June
30, 2000

     Net sales for the three months ended June 30, 2001 increased by 62% to
$67.9 million from $41.9 million in the comparable 2000 period. This
increase in net sales was primarily due to the increase in net sales from
several new products. In November 1999, the Company launched Percocet(R)
2.5/325, Percocet(R) 7.5/500 and Percocet(R) 10.0/650 to complement the
existing Percocet(R) 5.0/325 for the relief of moderate-to-severe pain. In
September 1999, the Company launched Lidoderm(R), the first FDA-approved
product for the treatment of the pain of post-herpetic neuralgia. In
November 1998, the Company launched the 15mg, 30mg and 60mg strengths, and
in May 2001, the Company launched the 100mg strength, of Morphine Sulfate
Extended Release Tablets, the therapeutic equivalent version of MS
Contin(R), for relief of moderate-to-severe pain. On January 3, 2001,
Watson Pharmaceuticals, Inc. announced that the Food and Drug
Administration had approved Watson's abbreviated new drug application
(ANDA) for a generic equivalent to Percocet(R) 7.5/500 and Percocet(R)
10.0/650. This generic equivalent became available in April 2001. These
generics may have a material impact on the results of operations and cash
flows of the Company in the future.

     Gross profit for the three months ended June 30, 2001 increased by 82%
to $46.8 million from $25.7 million in the comparable 2000 period. Gross
profit margins increased to 69% from 61% in the comparable 2000 period due
to a more favorable mix of higher margin products resulting from the
product launches discussed above, and the discontinuation of some lower
margin non-core products. In addition, the increase in gross profit margins
was also due to the existing fixed cost nature of the Company's
manufacturing relationship with DuPont Pharmaceuticals, currently the
Company's most significant contract manufacturing relationship.

     Selling, general and administrative expenses for the three months
ended June 30, 2001 increased by 38% to $19.5 million from $14.1 million in
the comparable 2000 period. This increase was due to a $2.7 million
increase in sales and promotional efforts in 2001 over the comparable 2000
period to support Lidoderm(R) and Percocet(R). The increase in sales and
promotional efforts was primarily due to the first quarter 2001 deployment
of a dedicated contract sales force of 230 full-time representatives
comprised of 70 full-time specialty representatives and 160 full-time
primary care representatives compared to 300 part-time representatives in
the comparable 2000 period. In addition, the Company experienced an
increase in personnel-related costs in the general and administrative
functions in order to support its growth.

     Research and development expenses for the three months ended June 30,
2001 increased by 77% to $8.3 million from $4.7 million in the comparable
2000 period. This increase was due to the Company's increased spending on
products under development that are focused in pain management including
the products under development that had been part of the former Algos
pipeline. The results of operations of Algos have been included in the
Company's financial statements prospectively for reporting periods
beginning July 17, 2000.

      Depreciation and amortization for the three months ended June 30,
2001 increased to $12.4 million from $2.2 million in the comparable 2000
period. This increase was substantially due to the increase in amortization
of goodwill and other intangibles resulting from the intangible assets
acquired as a result of the Merger.

     Interest expense, net for the three months ended June 30, 2001
decreased by 24% to $2.9 million from $3.8 million in the comparable 2000
period. The decrease was primarily due to a decrease in interest expense of
$.7 million due to a decrease in interest rates. In addition, the decrease
was due to an increase in interest income of $.2 million due to an increase
in the average cash balance for the three months ended June 30, 2001
compared to the comparable 2000 period. The increase in the average cash
balance was in part due to the acquisition of $19.6 million in net cash and
cash equivalents in the Merger with Algos.

     Income tax for the three months ended June 30, 2001 increased as a
result of an increase in taxable income and, for the three months ended
June 30, 2001, reflects only state income tax. The Company has recorded a
valuation allowance on its existing deferred tax assets due to the
uncertainty of the utilization of such amounts in the foreseeable future.

Six Months Ended June 30, 2001 Compared to the Six Months Ended June 30, 2000

     Net sales for the six months ended June 30, 2001 increased by 56% to
$107.2 million from $68.9 million in the comparable 2000 period. This
increase in net sales was primarily due to the increase in net sales from
several new products. In November 1999, the Company launched Percocet(R)
2.5/325, Percocet(R) 7.5/500 and Percocet(R) 10.0/650 to complement the
existing Percocet(R) 5.0/325 for the relief of moderate-to-severe pain. In
September 1999, the Company launched Lidoderm(R), the first FDA-approved
product for the treatment of the pain of post-herpetic neuralgia. In
November 1998, the Company launched the 15mg, 30mg and 60mg strengths, and
in May 2001, the Company launched the 100mg strength, of Morphine Sulfate
Extended Release Tablets, the therapeutic equivalent version of MS
Contin(R), for the relief of moderate-to-severe pain. On January 3, 2001,
Watson Pharmaceuticals, Inc. announced that the Food and Drug
Administration had approved Watson's abbreviated new drug application
(ANDA) for a generic equivalent to Percocet(R) 7.5/500 and Percocet(R)
10.0/650. This generic equivalent became available in April 2001. These
generics may have a material impact on the results of operations and cash
flows of the Company in the future.

     Gross profit for the six months ended June 30, 2001 increased by 81%
to $73.6 million from $40.6 million in the comparable 2000 period. Gross
profit margins increased to 69% from 59% due to a more favorable mix of
higher margin products resulting from the product launches discussed above,
and the discontinuation of some lower margin non-core products. In
addition, the increase in gross profit margins was also due to the existing
fixed cost nature of the Company's manufacturing relationship with DuPont
Pharmaceuticals, currently the Company's most significant contract
manufacturing relationship. If the Company achieves its forecast for
revenue and product mix, the Company's management expects the increase in
gross profits to continue.

     Selling, general and administrative expenses for the six months ended
June 30, 2001 increased by 35% to $35.3 million from $26.1 million in the
comparable 2000 period. This increase was due to a $5.0 million increase in
sales and promotional efforts in 2001 over the comparable 2000 period to
support Lidoderm(R) and Percocet(R). The increase in sales and promotional
efforts was primarily due to the first quarter 2001 deployment of a
dedicated contract sales force of 230 full-time representatives comprised
of 70 full-time specialty representatives and 160 full-time primary care
representatives compared to 300 part-time representatives in the comparable
2000 period. In addition, the Company experienced an increase in
personnel-related costs in the general and administrative functions in
order to support its growth.

     Research and development expenses for the six months ended June 30,
2001 increased by 127% to $17.5 million from $7.7 million in the comparable
2000 period. This increase was due to the Company's increased spending on
products under development that are focused in pain management including
the products under development that had been part of the former Algos
pipeline. The results of operations of Algos have been included in the
Company's financial statements prospectively for reporting periods
beginning July 17, 2000.

      Depreciation and amortization for the six months ended June 30, 2001
increased to $24.8 million from $4.3 million in the comparable 2000 period.
This increase was substantially due to the increase in amortization of
goodwill and other intangibles resulting from the intangible assets
acquired as a result of the Merger.

     Separation benefits of $22.0 million for the six months ended June 30,
2000 resulted from a $20.8 million charge related to the acceleration of
vesting of stock options held by two former executives and a $1.2 million
charge from compensation and other benefits pursuant to two separation and
release agreements entered into by the Company. The stock compensation
charge reflects the estimated difference in the fair value and the exercise
price of such stock options on the effective date of each of the separation
and release agreements.

     Interest expense, net for the six months ended June 30, 2001 decreased
by 17% to $6.4 million from $7.7 million in the comparable 2000 period. The
decrease was primarily due to an increase in interest income of $.8 million
due to an increase in the average cash balance for the six months ended
June 30, 2001 compared to the comparable 2000 period. The increase in the
average cash balance was in part due to the acquisition of $19.6 million in
net cash and cash equivalents in the Merger with Algos. In addition, the
decrease was due to a decrease in interest expense of $.7 million due to a
decrease in interest rates. In addition, due to the adoption of SFAS 133 on
January 1, 2001, the Company recorded a $.2 million charge for the
accumulated transition adjustment relating to derivative instruments that
do not qualify as a hedge under SFAS 133.

     Income tax (benefit) for the six months ended June 30, 2001 increased
as a result of an increase in taxable income. The Company has recorded a
valuation allowance on its existing deferred tax assets due to the
uncertainty of the utilization of such amounts in the foreseeable future.

Liquidity and Capital Resources

     Net cash provided by operating activities increased by $21.3 million
to $39.3 million for the six months ended June 30, 2001 from $18.0 million
for the six months ended June 30, 2000. This increase was substantially due
to reduction in cash flow utilized in inventory. During the six months
ended June 30, 2000, the Company was building up inventories to support the
launches of several new products, which utilized a significant amount of
cash flow.

     Net cash utilized in investing activities increased by $1.5 million to
$2.0 million for the six months ended June 30, 2001 from $.5 million for
the six months ended June 30, 2000 due to an increase in capital
expenditures. This increase in capital expenditures was due to the
implementation of an electronic document management system during 2001 and
the purchase of leasehold improvements and other furniture and fixtures
related to the Company's new principal executive offices, the lease of
which is expected to commence in the third quarter of 2001.

     Net cash utilized in financing activities increased by $19.8 million
to $29.5 million for the six months ended June 30, 2001 from $9.7 million
for the six months ended June 30, 2000 due to repayments made on the
Company's credit facility.

     On March 15, 2001, Penwest Pharmaceuticals Co., a collaboration
partner of Endo with which Endo has an alliance agreement and with which
Endo is developing one of its pipeline projects, received a "going concern"
opinion from Ernst & Young LLP, its independent auditors, in connection
with Penwest's Annual Report on Form 10-K for the year ended December 31,
2000. Specifically, Ernst & Young stated that they had substantial doubt
about Penwest's ability to continue as a going concern in light of its
recurring operating losses and negative cash flows from operations in each
of the three years in the period ended December 31, 2000. In addition,
Penwest's Annual Report indicated that, based on anticipated levels of
operations and currently available capital resources, Penwest's management
expects continued operating losses and negative cash flows during 2001. On
July 10, 2001, Penwest announced that it has entered into definitive
agreements for the sale of 2.4 million shares of newly issued common stock
to selected institutional and other accredited investors for an aggregate
of $30 million. On July 25, 2001, Penwest filed a Report on Form 8-K with
the SEC that contained an opinion of Ernst & Young LLP that, on account of
this issuance of $30 million of common stock, the conditions that raised
substantial doubt about whether Penwest will continue as a going concern no
longer exist. If Penwest is unable to fund their portion of the
collaboration project with Endo, this may adversely affect the results of
operations and cash flows of Endo in the foreseeable future.

     The Company's cash and cash equivalents totaled $67.0 million at June
30, 2001. The Company believes that its (a) cash and cash equivalents, (b)
cash flow from operations and (c) existing credit facility, which has an
available unused line of credit of $25 million, will be sufficient to meet
its normal operating, investing and financing requirements in the
foreseeable future, including the funding of the Company's pipeline
projects in the event that Endo's collaboration partners are unable to fund
their portion of any particular project. In the event that the Company
makes any significant acquisitions or other strategic investments, it may
be required to raise additional funds, through the issuance of additional
debt or equity securities.

     Recent Accounting Pronouncements

      In June 2001, the Financial Accounting Standards Board ("FASB")
issued Statement of Financial Accounting Standards ("SFAS") No. 142,
Goodwill and Other Intangible Assets, which is effective for fiscal years
beginning after December 15, 2001. SFAS No. 142 establishes revised
reporting requirements for goodwill and other intangible assets. Upon
adoption, the Company will no longer amortize goodwill unless evidence of
an impairment exists. Goodwill will be evaluated for impairment on an
annual basis. Although the Company is currently evaluating all of the
provisions of SFAS No. 142, the Company does believe the adoption of SFAS
No. 142 will have a material impact on the results of operations of the
Company. The Company has $241.7 million of goodwill as of June 30, 2001 and
has recorded $20.4 million of goodwill amortization for the six months
ended June 30, 2001. The Company will adopt the provisions of SFAS No. 142
effective January 1, 2002.

Item 3.   Quantitative and Qualitative Disclosures about Market Risk.

     The Company's primary market risk exposure is to changes in interest
rates (LIBOR) on its variable rate borrowings. The Company does not utilize
financial instruments for trading purposes and holds no derivative
financial instruments that could expose it to significant market risk. The
Company monitors interest rates and enters into interest rate agreements as
considered appropriate. To manage a portion of its exposure to fluctuations
in interest rates, the Company had entered into an interest rate cap
agreement with a notional amount of $82.5 million that sets a maximum LIBOR
rate of 8% that it will pay on the related notional amount. This interest
rate cap agreement expired on August 27, 2000. Effective August 27, 2000,
the Company has entered into a new interest rate cap agreement with a
notional amount of $70.0 million that sets a maximum LIBOR rate of 8% that
the Company will pay on the related notional amount through August 27,
2003.


                                  PART II

                             OTHER INFORMATION

Item 1.   Legal Proceedings.

         On October 20, 2000, The Purdue Frederick Company (and related
companies) filed suit against Endo and its subsidiary, Endo Pharmaceuticals
Inc., in the U.S. District Court for the Southern District of New York
alleging that Endo's bioequivalent versions of Purdue Frederick's
OxyContin(R), 40 mg strength, infringe three of its patents. This suit
arose from the United States Food and Drug Administration (FDA) acceptance
of Endo Pharmaceuticals Inc.'s Abbreviated New Drug Application (ANDA)
submission for a bioequivalent version of Purdue Frederick's OxyContin(R),
40 mg strength. On March 13, 2001, Purdue Frederick (and related companies)
filed a second suit against Endo and Endo Pharmaceuticals Inc. in the U.S.
District Court for the Southern District of New York alleging that Endo's
bioequivalent versions of Purdue Frederick's OxyContin(R), 10 and 20 mg
strengths, infringe the same three patents. This suit arose from Endo
Pharmaceuticals having amended its earlier ANDA on February 9, 2001, to add
bioequivalent versions of the 10 mg and 20 mg strengths of OxyContin(R).
For each of the 10 mg, 20 mg and 40 mg strengths of this product, Endo
Pharmaceuticals made the required Paragraph IV certification against the
patents listed in the FDA's Orange Book as covering these products.
OxyContin(R) is indicated for the treatment of moderate-to-severe pain.
Although Endo believes the patents asserted by Purdue Frederick are invalid
and/or not infringed by Endo's formulation of oxycodone hydrochloride
extended-release tablets, 10 mg, 20 mg and 40 mg strengths, no assurance
can be given as to the outcome of the patent challenge process.

         In addition to the above, Endo is involved in, or has been
involved in, arbitrations or legal proceedings which arise from the normal
course of its business. Endo cannot predict the timing or outcome of these
claims and proceedings. Currently, Endo is not involved in any arbitration
and/or legal proceeding that Endo expects to have a material effect on its
business, financial condition or results of operations and cash flows.


Item 2.   Changes in Securities and Use of Proceeds.

     None.


Item 3.   Defaults Upon Senior Securities.

     None.


Item 4.   Submission of Matters to a Vote of Security Holders.

    (a)  The annual meeting of the stockholders of the Company was held on
         May 23, 2001.

    (b)  The stockholders elected all of the Company's nominees for
         director. The stockholders also approved the appointment of
         Deloitte & Touche LLP as the Company's independent auditors for
         2001.

        (1)  Election of Directors:

                                             For           Abstain
                                             ---           -------
             Carol A. Ammon                  70,820,065    18,318,885

             Michael B. Goldberg             70,820,065    18,318,885

             Michael Hyatt                   70,820,065    18,318,885

             Roger H. Kimmel                 70,820,065    18,318,885

             Frank J. Loverro                70,820,065    18,318,885

             John W. Lyle                    70,820,065    18,318,885

             Michael W. Mitchell             70,820,065    18,318,885

             Joseph T. O'Donnell, Jr.        70,820,065    18,318,885

             David I. Wahrhaftig             70,820,065    18,318,885

        (2)  Approval of Appointment of Deloitte & Touche LLP

             For                  70,820,065
             ---
             Abstain              18,318,885
             -------

          The foregoing matters are described in detail in the Company's
information statement dated April 27, 2001, for the Annual Meeting of
Stockholders held on May 23, 2001.

Item 5.   Other Information.

     On May 3, 2001, Endo entered into a long-term manufacturing and
development agreement with Novartis Consumer Health, Inc. whereby Novartis
has agreed to manufacture certain of Endo's commercial products and
products in development.

Item 6.   Exhibits and Reports on Form 8-K.

      (a)  Exhibits.

            The information called for by this item is incorporated herein
by reference to the Exhibit Index of this report.

      (b) Reports on Form 8-K.

            On May 14, 2001, the Company filed a Form 8-K with respect to a
press release that the Company issued. No financial statements were filed
in connection with such Form 8-K.



                                 SIGNATURES

     Pursuant to the requirements of the Securities Exchange of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                ENDO PHARMACEUTICALS HOLDINGS INC.
                                (Registrant)


                                /s/ Carol A. Ammon
                                ---------------------
                                Name:  Carol A. Ammon
                                Title: President and Chief Executive Officer


                                /s/ Jeffrey R. Black
                                ---------------------
                                Name:  Jeffrey R. Black
                                Title: Senior Vice President and Chief
                                       Financial Officer

Date: August 13, 2001



                               Exhibit Index



       Exhibit No.        Title
       -----------        -----

         2.1              Amended and Restated Agreement and Plan of
                          Merger, dated as of March 3, 2000 (the "Merger
                          Agreement"), by and among Endo Pharmaceuticals
                          Holdings Inc. ("Endo"), Endo Inc. and Algos
                          Pharmaceutical Corporation ("Algos")
                          (incorporated herein by reference to Exhibit 2.1
                          of the Registration Statement on Form S-4 of the
                          Registrant (Registration No. 333-39040) (the
                          "Registration Statement"), filed with the
                          Securities and Exchange Commission (the
                          "Commission") on June 9, 2000)

         2.2              Amendment, dated as of April 17, 2000, to the
                          Merger Agreement, by and between Endo, Endo Inc.
                          and Algos (incorporated herein by reference to
                          Exhibit 2.2 of the Registration Statement filed
                          with the Commission on June 9, 2000)

         2.3              Asset Purchase Agreement, dated as of August 27,
                          1997, by and between Endo Pharmaceuticals Inc.
                          ("Endo Pharmaceuticals") and The DuPont Merck
                          Pharmaceutical Company ("DuPont Merck
                          Pharmaceutical") (incorporated herein by
                          reference to Exhibit 2.3 of the Registration
                          Statement filed with the Commission on June 9,
                          2000)

         3.1              Amended and Restated Certificate of Incorporation
                          of Endo (incorporated herein by reference to
                          Exhibit 3.1 of the Form 10-Q for the Quarter
                          ended June 30, 2000 filed with the Commission on
                          August 15, 2000)

         3.2              Amended and Restated By-laws of Endo
                          (incorporated herein by reference to Exhibit 3.2
                          of the Form 10-Q for the Quarter ended June 30,
                          2000 filed with the Commission on August 15,
                          2000)

         4.1              Amended and Restated Executive Stockholders
                          Agreement, dated as of July 14, 2000, by and
                          among Endo, Endo Pharma LLC ("Endo LLC"), Kelso
                          Investment Associates V, L.P. ("KIA V"), Kelso
                          Equity Partners V, L.P. ("KEP V") and the
                          Management Stockholders (as defined therein)
                          (incorporated herein by reference to Exhibit 4.1
                          of the Form 10-Q for the Quarter ended June 30,
                          2000 filed with the Commission on August 15,
                          2000)

         4.2              Amended and Restated Employee Stockholders
                          Agreement, dated as of July 14, 2000, by and
                          among Endo, Endo LLC, KIA V, KEP V and the
                          Employee Stockholders (as defined therein)
                          (incorporated herein by reference to Exhibit 4.2
                          of the Form 10-Q for the Quarter ended June 30,
                          2000 filed with the Commission on August 15,
                          2000)

         4.3              Form of Stock Certificate of Endo Common Stock
                          (incorporated herein by reference to Exhibit 4.3
                          of the Form 10-Q for the Quarter ended June 30,
                          2000 filed with the Commission on August 15,
                          2000)

         4.4              Registration Rights Agreement, dated as of July
                          17, 2000, by and between Endo and Endo LLC
                          (incorporated herein by reference to Exhibit 4.4
                          of the Form 10-Q for the Quarter ended June 30,
                          2000 filed with the Commission on August 15,
                          2000)

         10.1             Endo Warrant Agreement, dated as of July 17,
                          2000, by and between Endo and United States
                          Trust Company of New York (incorporated herein
                          by reference to Exhibit 10.1 of the Form 10-Q
                          for the Quarter ended June 30, 2000 filed with
                          the Commission on August 15, 2000)

         10.2             Algos Warrant Agreement, dated as of July 17,
                          2000, by and between Endo and United States
                          Trust Company of New York (incorporated herein
                          by reference to Exhibit 10.2 of the Form 10-Q
                          for the Quarter ended June 30, 2000 filed with
                          the Commission on August 15, 2000)

         10.3             Form of Series A Warrant to Purchase Shares of
                          Common Stock and Warrants of Endo (incorporated
                          herein by reference to Exhibit 10.3 of the
                          Registration Statement filed with the Commission
                          on June 9, 2000)

         10.4             Letter Agreement, dated as of November 26, 1999,
                          by and among Algos, Endo, KIA V and KEP V
                          (incorporated herein by reference to Exhibit 10.4
                          of the Registration Statement filed with the
                          Commission on June 9, 2000)

         10.5             Tax Sharing Agreement, dated as of July 17, 2000,
                          by and among Endo, Endo Inc. and Endo LLC
                          (incorporated herein by reference to Exhibit 10.5
                          of the Form 10-Q for the Quarter ended June 30,
                          2000 filed with the Commission on August 15,
                          2000)

         10.6             Agreement, dated as of July 17, 2000, by and
                          between Endo and Endo LLC (incorporated herein by
                          reference to Exhibit 10.6 of the Form 10-Q for
                          the Quarter ended June 30, 2000 filed with the
                          Commission on August 15, 2000)

         10.7             Credit Agreement, dated as of August 26, 1997, by
                          and between Endo Pharmaceuticals and The Chase
                          Manhattan Bank (incorporated herein by reference
                          to Exhibit 10.7 of the Registration Statement
                          filed with the Commission on June 9, 2000)

         10.8             [Intentionally Omitted.]

         10.9             [Intentionally Omitted.]

         10.10            Sole and Exclusive License Agreement, dated as of
                          November 23, 1998, by and between Endo
                          Pharmaceuticals and Hind Health Care, Inc.
                          (incorporated herein by reference to Exhibit
                          10.10 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.11            Analgesic License Agreement, dated as of October
                          27, 1997, by and among Endo Pharmaceuticals, Endo
                          Laboratories, LLC and DuPont Merck Pharmaceutical
                          (incorporated herein by reference to Exhibit
                          10.11 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.12            Anti-Epileptic License Agreement, dated as of
                          October 27, 1997, by and among Endo
                          Pharmaceuticals, Endo Laboratories, LLC and
                          DuPont Merck Pharmaceutical (incorporated herein
                          by reference to Exhibit 10.12 of the Registration
                          Statement filed with the Commission on June 9,
                          2000)

         10.13            Product Development, Manufacturing and Supply
                          Agreement, dated as of October 29, 1999, by and
                          between Endo Pharmaceuticals and Lavipharm
                          Laboratories Inc. (incorporated herein by
                          reference to Exhibit 10.13 of the Registration
                          Statement filed with the Commission on June 9,
                          2000)

         10.14            Supply and Manufacturing Agreement, dated as of
                          November 23, 1998, by and between Endo
                          Pharmaceuticals and Teikoku Seiyaku Co., Ltd
                          (incorporated herein by reference to Exhibit
                          10.14 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.15            Supply Agreement, dated as of July 1, 1998, by
                          and between Endo Pharmaceuticals and Mallinckrodt
                          Inc. ("Mallinckrodt") (incorporated herein by
                          reference to Exhibit 10.15 of the Registration
                          Statement filed with the Commission on June 9,
                          2000)

         10.16            Supply Agreement for Bulk Narcotics Raw
                          Materials, dated as of July 1, 1998, by and
                          between Endo Pharmaceuticals and Mallinckrodt
                          (incorporated herein by reference to Exhibit
                          10.16 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.17            Manufacture and Supply Agreement, dated as of
                          August 26, 1997, by and among Endo
                          Pharmaceuticals, DuPont Merck Pharmaceutical and
                          DuPont Merck Pharma (incorporated herein by
                          reference to Exhibit 10.17 of the Registration
                          Statement filed with the Commission on June 9,
                          2000)

         10.18            Strategic Alliance Agreement, dated as of
                          September 17, 1997, by and between Endo
                          Pharmaceuticals and Penwest Pharmaceuticals Group
                          (incorporated herein by reference to Exhibit
                          10.18 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.19            Agreement, dated as of February 1, 2000, by and
                          between Endo Pharmaceuticals and Livingston
                          Healthcare Services Inc. (incorporated herein by
                          reference to Exhibit 10.19 of the Registration
                          Statement filed with the Commission on June 9,
                          2000)

         10.20            Medical Affairs Support Services Agreement, dated
                          as of June 1, 1999, by and between Endo
                          Pharmaceuticals and Kunitz and Associates, Inc.
                          (incorporated herein by reference to Exhibit
                          10.20 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.21            Endo Pharmaceuticals Holdings Inc. 2000 Stock
                          Incentive Plan (incorporated herein by reference
                          to Exhibit 10.21 of the Quarterly Report on Form
                          10-Q for the Quarter Ended September 30, 2000)

         10.22            Endo LLC Amended and Restated 1997 Employee Stock
                          Option Plan (incorporated herein by reference to
                          Exhibit 10.22 of the Quarterly Report on Form
                          10-Q for the Quarter Ended September 30, 2000)

         10.23            Endo LLC Amended and Restated 1997 Executive
                          Stock Option Plan (incorporated herein by
                          reference to Exhibit 10.23 of the Quarterly
                          Report on Form 10-Q for the Quarter Ended
                          September 30, 2000)

         10.24            Endo LLC 2000 Amended and Restated Supplemental
                          Employee Stock Option Plan (incorporated herein
                          by reference to Exhibit 10.24 of the Quarterly
                          Report on Form 10-Q for the Quarter Ended
                          September 30, 2000)

         10.25            Endo LLC 2000 Amended and Restated Supplemental
                          Executive Stock Option Plan (incorporated herein
                          by reference to Exhibit 10.25 of the Quarterly
                          Report on Form 10-Q for the Quarter Ended
                          September 30, 2000)

         10.26            Employment Agreement, dated as of July 17, 2000,
                          by and between Endo and John W. Lyle
                          (incorporated herein by reference to Exhibit
                          10.26 of the Form 10-Q for the Quarter Ended June
                          30, 2000)

         10.27            Amended and Restated Employment Agreement, dated
                          as of April 26, 2000, by and between Endo
                          Pharmaceuticals and Carol A. Ammon (incorporated
                          herein by reference to Exhibit 10.27 of the
                          Quarterly Report on Form 10-Q for the Quarter
                          Ended September 30, 2000)

         10.28            Amended and Restated Employment Agreement, dated
                          as of April 26, 2000, by and between Endo
                          Pharmaceuticals and Jeffrey R. Black
                          (incorporated herein by reference to Exhibit
                          10.28 of the Quarterly Report on Form 10-Q for
                          the Quarter Ended September 30, 2000)

         10.29            Amended and Restated Employment Agreement, dated
                          as of April 26, 2000, by and between Endo
                          Pharmaceuticals and David Allen Harvey Lee, MD,
                          Ph.D. (incorporated herein by reference to
                          Exhibit 10.29 of the Quarterly Report on Form
                          10-Q for the Quarter Ended September 30, 2000)

         10.30            Amended and Restated Employment Agreement, dated
                          as April 26, 2000, by and between Endo
                          Pharmaceuticals and Mariann T. MacDonald
                          (incorporated herein by reference to Exhibit
                          10.30 of the Quarterly Report on Form 10-Q for
                          the Quarter Ended September 30, 2000)

         10.31            Separation and Release Agreement, dated as of
                          March 22, 2000, by and between Endo
                          Pharmaceuticals, Endo and Osagie O. Imasogie
                          (incorporated herein by reference to Exhibit
                          10.31 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.32            Separation and Release Agreement, dated as of
                          April 20, 2000, by and between Endo
                          Pharmaceuticals, Endo and Louis J. Vollmer
                          (incorporated herein by reference to Exhibit
                          10.32 of the Registration Statement filed with
                          the Commission on June 9, 2000)

         10.33            Office Lease, dated as of August 26, 1997, by and
                          between Endo Pharmaceuticals and Northstar
                          Development Company (incorporated herein by
                          reference to Exhibit 10.33 of the Registration
                          Statement filed with the Commission on June 9,
                          2000)

         10.34            Lease Agreement, dated as of May 5, 2000, by and
                          between Endo Pharmaceuticals and Painters'
                          Crossing One Associates, L.P. (incorporated
                          herein by reference to Exhibit 10.34 of the
                          Registration Statement filed with the Commission
                          on June 9, 2000)

         10.35            Employment Agreement, dated as of September 5,
                          2000, by and between Endo and Caroline E. Berry
                          (incorporated herein by reference to Exhibit
                          10.35 of the Quarterly Report on Form 10-Q for
                          the Quarter Ended September 30, 2000)

         10.36            Employment Agreement, dated as of August 11,
                          2000, by and between Endo and Peter A. Lankau
                          (incorporated herein by reference to Exhibit
                          10.36 of the Quarterly Report on Form 10-Q for
                          the Quarter Ended September 30, 2000)

         10.37            License Agreement, dated as of August 16, 1993,
                          by and between Endo Inc. (f/k/a Algos
                          Pharmaceutical Corporation) and The Medical
                          College of Virginia (incorporated herein by
                          reference to Exhibit 10.4.1 of the registration
                          statement on Form S-1 of Algos Pharmaceutical
                          Corporation declared effective on September 25,
                          1996)

         10.38            Lease Agreement, dated as of March 27, 1997, by
                          and between Endo Inc. (f/k/a Algos Pharmaceutical
                          Corporation) and Commercial Realty & Resources
                          Corp. (incorporated herein by reference to
                          Exhibit 10.5 of the Quarterly Report of Algos
                          Pharmaceutical Corporation on Form 10-Q for the
                          Quarter Ended March 31, 1997)

         10.39            Master Development and Toll Manufacturing
                          Agreement, dated as of May 3, 2001, by and
                          between Novartis Consumer Health, Inc. and Endo
                          Pharmaceuticals Inc.+

         11               Statement Regarding Computation of per Share
                          Earnings

         99                Press release, dated August 13, 2001

- ----------------
+    Confidential portions of this exhibit have been redacted and filed
     separately with the Commission pursuant to a confidential treatment
     request in accordance with Rule 406 of the Securities Act of 1933.