EXHIBIT 23.1

                      CONSENT OF INDEPENDENT ACCOUNTANTS

     We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of Interneuron Pharmaceuticals, Inc. of our report dated
December 1, 1999, except as to Note N which is as of December 27, 1999, relating
to the consolidated financial statements which appear in Interneuron
Pharmaceuticals, Inc.'s Annual Report on Form 10-K for the year ended September
30, 1999.  We also consent to the reference to us under the heading "Experts" in
such registration statement.




                                                  /s/ PricewaterhouseCoopers LLP
                                                  Boston, Massachusetts
                                                  February 8, 2000