EXHIBIT 32 CERTIFICATION PURSUANT TO 18 USC, SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Lannett Company, Inc. (the "Company") on Form 10-Q for the quarter ended March 31, 2004 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, William Farber, the Chief Executive Officer of the Company, and I, Larry Dalesandro, the Chief Financial Officer of the Company, 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. The Report 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: May 10, 2004 /s/William Farber --------------------------- William Farber, Chief Executive Officer Dated: May 10, 2004 /s/Larry Dalesandro --------------------------- Larry Dalesandro, Chief Financial Officer 41