Exhibit 99.1

                           Immtech International, Inc.

     Certification of Chief Executive Officer and Chief Financial Officer
                       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 Annual Report pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934 on Form 10-K of Immtech International,
Inc. (the "Company") for the period ended March 31, 2003, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), the
undersigned, T. Stephen Thompson, President and Chief Executive Officer of the
Company, and Gary C. Parks, Treasurer, Secretary and Chief Financial Officer of
the Company, do each hereby certify, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.    such Annual Report on Form 10-K for the fiscal year ended March 31, 2003,
      fully complies with the requirements of Section 13(a) or 15(d) of the
      Securities Exchange Act of 1934, as amended; and

2.    the information contained in such Annual Report on Form 10-K for the
      fiscal year ended March 31, 2003, fairly presents, in all material
      respects, the financial condition and results of operations of the
      Company.

                                       /s/ T. Stephen Thompson
                                       ------------------------
                                          T. Stephen Thompson
                                          President and Chief Executive
                                          Officer
                                          June 27, 2003

                                       /s/ Gary C. Parks
                                       -----------------
                                          Gary C. Parks
                                          Treasurer, Secretary and Chief
                                          Financial Officer
                                          June 27, 2003