EXHIBIT 23.1


            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

     We consent to the incorporation by reference in this Registration Statement
on Form S-8 of our reports dated March 14, 2008, relating to the consolidated
financial statements of ARIAD Pharmaceuticals, Inc. and subsidiaries (which
report expresses an unqualified opinion and includes an explanatory paragraph
regarding the adoption of Statement of Financial Accounting Standards No. 123R,
Share-Based Payment, effective January 1, 2006) and the effectiveness of ARIAD
Pharmaceuticals, Inc.'s and subsidiaries' internal control over financial
reporting appearing in the Annual Report on Form 10-K of ARIAD Pharmaceuticals,
Inc. for the year ended December 31, 2007.

/S/ DELOITTE & TOUCHE LLP

Boston, Massachusetts
June 12, 2008