UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 2, 2010

PHARMERICA CORPORATION

(Exact Name of Registrant as Specified in Its Charter)

1901 Campus Place

Louisville, Kentucky 40299

(Address of principal executive offices) (Zip Code)

(502) 627-7000

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 4.01. Changes in Registrant’s Certifying Accountant.

On March 2, 2010, the Audit Committee of the Board of Directors of PharMerica Corporation (the “Company”) dismissed PricewaterhouseCoopers LLP (“PwC”) as the Company’s independent registered public accounting firm.

The reports of PwC on the Company’s consolidated financial statements for the fiscal years ended December 31, 2008 and 2009 did not contain an adverse opinion or disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope or accounting principle. During the fiscal years ended December 31, 2008 and 2009, and through March 2, 2010, there have been no disagreements with PwC on any matters of accounting principles or practices, financial statement disclosure or auditing scope and procedure, which disagreements, if not resolved to the satisfaction of PwC, would have caused them to make reference thereto in their reports on the consolidated financial statements for such years. During the fiscal years ended December 31, 2008 and 2009, and through March 2, 2010, there have been no “reportable events” as defined in Item 304(a)(1)(v) of Regulation S-K.

The Company has provided PwC with a copy of the above statements and has requested that PwC furnish it with a letter addressed to the United States Securities and Exchange Commission stating whether or not it agrees with the above statements. A copy of such letter, dated March 5, 2010, is attached hereto as Exhibit 16.1.

On March 2, 2010, following a comprehensive search process initiated by the Company, the Audit Committee of the Board of Directors of the Company appointed KPMG LLP (“KPMG”) as the Company’s independent registered public accounting firm.

During the fiscal years ended December 31, 2008 and 2009, and through the date of the appointment of KPMG as the Company’s independent registered public accounting firm for fiscal year 2010, the Company did not consult with KPMG regarding either the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s consolidated financial statements, or any other reportable events as set forth in Items 304(a)(2)(i) and (ii) of Regulation S-K. KPMG has provided and currently provides due diligence services to the Company in connection with certain potential acquisitions.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

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 hereunto duly authorized.

Exhibit Index