Exhibit 32.0

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

Each of the undersigned hereby certifies, in his capacity as an officer of Barr
Laboratories, Inc. (the "Company"), for the purposes of 18 U.S.C. Section 1350,
as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to
the best of his knowledge:

(1) The Annual Report of the Company on Form 10-K/A for the period ended June
30, 2003 fully complies with the requirements of Section 13(a) or 15(d) 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 results of operations of the Company.

Dated: August 29, 2003

/s/Bruce L. Downey
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Bruce L. Downey
Chief Executive Officer

/s/William T. McKee
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William T. McKee
Chief Financial Officer

A signed original of this written statement required by Section 906 has been
provided to Barr Laboratories, Inc. and will be retained by Barr Laboratories,
Inc. and furnished to the Securities and Exchange Commission or its staff upon
request.