Exhibit 99.1
                              ANTARES PHARMA, INC.

                  CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND
                      CHIEF FINANCIAL OFFICER PURSUANT TO
         SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C. 1350)

         Each of the undersigned, Roger G. Harrison and Lawrence M. Christian,
the Chief Executive Officer and the Chief Financial Officer, respectively, of
Antares Pharma, Inc. (the "Company"), individually and not jointly has executed
this Certification in connection with the filing with the Securities and
Exchange Commission of the Company's amended Annual Report on Form 10-K/A for
the fiscal year ended December 31, 2001 (the "Report").

         Each of the undersigned hereby certifies that:

         1.       The Report 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.

IN WITNESS WHEREOF, each of the undersigned has executed this Certification as
of the 9th day of October, 2002.

                                            /s/ Roger G. Harrison
                                   --------------------------------------------
                                   Roger G. Harrison, Ph.D.
                                   Chief Executive Officer and President

                                            /s/ Lawrence M. Christian
                                   --------------------------------------------
                                   Lawrence M. Christian
                                   Chief Financial Officer, Vice President -
                                   Finance and Secretary