EX-23.1 5 a2129731zex-23_1.txt EXHIBIT 23.1 EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 33-48030, 33-48348, 33-65472, 33-93224, 333-12325, 333-27011, 333-56179, 333-79549, 333-65664, 333-65666 and 333-104362) and on Form S-3 (File Nos. 333-37794 and 333-49844) of Vertex Pharmaceuticals Incorporated of our report dated March 10, 2004, relating to the consolidated financial statements, which appears in this Annual Report on Form 10-K. PricewaterhouseCoopers LLP Boston, Massachusetts March 15, 2004