EX-99 4 exhbit99.txt EXHIBIT 99.1 Exhibit 99.1 Pharmaceutical Resources, Inc. One Ram Ridge Road Spring Valley, New York 10977 LETTER TO COMMISSION PURSUANT TO TEMPORARY NOTE 3T March 29, 2002 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549-0408 Ladies and Gentlemen: Pursuant to Temporary Note 3T to Article 3 of Regulation S-X, Pharmaceutical Resources, Inc. has obtained a letter of representation from Arthur Andersen LLP ("Andersen") stating that the December 31, 2001 audit was subject to their quality control system for the U.S. accounting and auditing practice to provide reasonable assurance that the engagement was conducted in compliance with professional standards, that there was appropriate continuity of Andersen personnel working on the audit and availability of national office consultation to conduct the relevant portions of their audit. Very truly yours, Pharmaceutical Resources, Inc. /s/ Dennis O' Connor -------------------- Dennis O'Connor Vice President and Chief Financial Officer