Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” in this Registration Statement (Form S-3) and related Prospectus of Vertex Pharmaceuticals Incorporated for the registration of 10,733,527 shares of its common stock and to the incorporation by reference therein of our reports dated February 12, 2009, with respect to the consolidated financial statements of Vertex Pharmaceuticals Incorporated and the effectiveness of internal control over financial reporting of Vertex Pharmaceuticals Incorporated, included in its Annual Report (Form 10-K) for the year ended December 31, 2008, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP |
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Boston, Massachusetts |
March 6, 2009 |
