<PAGE>
EXHIBIT 23.1
Consent of Independent Auditors
We consent to the incorporation by reference in the Current Report on Form 8-K
of Insmed Incorporated of our report dated January 13, 2000, with respect to the
consolidated financial statements of Insmed Pharamaceuticals, Inc. for the year
ended December 31, 1999, which report appears in the Registration Statement on
Form S-4 (No. 333-30098) and Prospectus of Insmed Incorporated, filed with the
Securities and Exchange Commission.
/s/Ernst & Young LLP
Richmond, Virginia
June 14, 2000
