FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Hutson Nancy J   2. Issuer Name and Ticker or Trading Symbol ENDO PHARMACEUTICALS HOLDINGS INC [ENDP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O ENDO PHARMACEUTICALS HOLDINGS INC., 100 ENDO BOULEVARD 3. Date of Earliest Transaction (Month/Day/Year) 03/30/2010 (Street) CHADDS FORD, PA 19317 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, par value, $.01 per share 03/30/2010   M   1,954 A (1) 9,742 (2) D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

2007 Stock Incentive Plan Restricted Stock Units (RSU)

(3)

03/30/2010

M

1,954

03/30/2010

03/30/2010(4)

Common Stock

1,954

$ 0

1,954

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Hutson Nancy J C/O ENDO PHARMACEUTICALS HOLDINGS INC. 100 ENDO BOULEVARD CHADDS FORD, PA 19317	X

Signatures

/s/ Caroline B. Manogue, by Power of Attorney		03/30/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This represents vesting of restricted stock units granted to Dr. Hutson on March 30, 2009. Upon each vesting date, each vested restricted stock unit automatically converts into one (1) share of common stock of Endo Pharmaceuticals Holdings Inc.
(2)	This number represents (i) 6,742 restricted stock units, 1,954 of which are fully vested and (ii) 3,000 shares of common stock. Dr. Hutson's beneficial ownership disclosed in this table excludes all shares held by Dr. Hutson indirectly, including shares underlying stock options.
(3)	Upon each vesting date, each vested restricted stock unit automatically converts into one (1) share of common stock of Endo Pharmaceuticals Holdings Inc.
(4)	Fifty percent (50%) of Dr. Hutson's March 30, 2009 grant of restricted stock units (RSUs) generally vest on each of March 30, 2010 and March 30, 2011. Upon vesting, we consider the underlying RSUs to be expired.

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