EXHIBIT 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Par  Pharmaceutical  Companies,  Inc.
(the  "Company")  on Form 10-Q for the period  ended April 3, 2005 as filed with
the Securities  and Exchange  Commission on the date hereof (the  "Report"),  I,
Dennis J. O'Connor, Chief Financial Officer of the Company, certify, pursuant to
18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that, to my knowledge:

      (1)  The Report fully complies with the  requirements  of Section 13(a) of
           the Securities Exchange Act of 1934; and

      (2)  The  information  contained  in the Report  fairly  presents,  in all
           material respects,  the financial  condition and result of operations
           of the Company.



/s/ Dennis J. O'Connor
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Dennis J. O'Connor
Chief Financial Officer
May 13, 2005