Exhibit 23.1

                         CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the incorporation by reference in the registration statements of
Regeneron Pharmaceuticals, Inc. on Form S-8 (File Nos. 33-50480, 33-85330 and
33-97176) of our report, which is based in part on the report of other auditors,
dated February 14, 1997, except for the second paragraph of Note 8(e) for which
the date is March 19, 1997, on our audits of the financial statements of
Regeneron Pharmaceuticals, Inc. as of December 31, 1996 and 1995, and for the
years ended December 31, 1996, 1995 and 1994, which report is included in this
Annual Report on Form 10-K.

                                                     COOPERS & LYBRAND L.L.P.

New York, New York
March 21, 1997