Exhibit 32.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED UNDER SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 --------------------------------------------- In connection with the Annual Report of IGI, Inc. (the "Company") on Form 10-K for the year ended December 31, 2004, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Frank Gerardi, Chairman and Chief Executive Officer of the Company, state and certify, pursuant to 18 U.S.C. Section 1350, as enacted under Section 906 of the Sarbanes-Oxley Act of 2002, 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 result of operations of the Company as of December 31, 2004. Date: April 12, 2005 /s/ Frank Gerardi ----------------- Frank Gerardi Chairman and Chief Executive Officer