- Additional Proxy Soliciting Materials (definitive) (DEFA14A)

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934
(Amendment No. )

Filed by the Registrant þ
Filed by a Party other than the Registrant o

Check the appropriate box:

o		Preliminary Proxy Statement

o		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

o		Definitive Proxy Statement

þ		Definitive Additional Materials

o		Soliciting Material Pursuant to §240.14a-12

IMPAX LABORATORIES, INC.

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

þ		No Fee Required.

o		Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

	(1)		Title of each class of securities to which transaction applies:



	(2)		Aggregate number of securities to which transaction applies:



	(3)		Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the filing fee is calculated and state how it was determined):



	(4)		Proposed maximum aggregate value of transaction:



	(5)		Total fee paid:

o		Fee paid previously with preliminary materials.

o		Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

	(1)		Amount Previously Paid:



	(2)		Form, Schedule or Registration Statement No.:



	(3)		Filing Party:



	(4)		Date Filed:

Impax Laboratories, Inc. intends to send letters to certain of its stockholders reminding them to take action to ensure that their shares are voted at the Company’s 2009 Annual Meeting of Stockholders. The text of such form letters follows:

SECOND REMINDER
PLEASE VOTE YOUR PROXY TODAY

May 5, 2009

Dear Fellow Stockholder:

According to our latest records, we have not received your voting instructions for the important annual meeting of Impax Laboratories, Inc. to be held on Tuesday, May 19, 2009. Your vote is extremely important, no matter how many shares you hold.

For the reasons set forth in the proxy statement, dated April 8, 2009, the Board of Directors unanimously recommends that you vote “ FOR” Proposals 1, 2, 3, 4 and 5. Please sign, date and return the enclosed proxy card as soon as possible or, alternatively, you can vote via the Internet or telephone (see the instructions on the reverse side of this letter).

LEADING PROXY ADVISORY FIRMS RECOMMEND
A VOTE “FOR” ALL PROPOSALS

Glass Lewis & Co., LLC and PROXY Governance, Inc., two leading, independent proxy advisory firms that advise institutional investors and publish voting recommendations have recommended that stockholders vote FOR all items on the agenda.

If you need assistance voting your shares, please call D. F. King & Co., Inc. toll free at (800) 347-4750. On behalf of your Board of Directors, thank you for your cooperation and continued support.

Sincerely,
-S- ROBERT L. BURR

Robert L. Burr
Chairman of the Board of Directors

You may use one of the following simple methods to promptly provide your voting instructions:

To vote by Internet:

	•		Log-on to www.votestock.com

	•		Enter the 12-digit control number printed on your proxy card.

	•		Vote your proxy by checking the appropriate boxes and clicking “Accept Vote.”

To vote by telephone:

	•		Call toll-free in the U.S. or Canada at 1-866-578-5350 on a touch-tone phone.

	•		After you call the phone number, you will be asked to enter the 12-digit control number on your proxy card.

	•		You will need to respond to only a few simple prompts

	•		Your vote will be confirmed and cast as directed.