Exhibit 23.1


              Consent of Ernst & Young LLP, Independent Auditors

We consent to the incorporation by reference in the Registration Statements
(Form S-8 No. 33-04563) pertaining to the Immunex Corporation Profit Sharing
401(k) Plan and Trust of our report dated May 18, 2001, with respect to the
financial statements and schedule of the Immunex Corporation Profit Sharing
401(k) Plan and Trust included in this Annual Report (Form 11-K) for the year
ended December 31, 2000.

                                             /s/ ERNST & YOUNG LLP

Seattle, Washington
June 28, 2001