Exhibit 23.1

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the use in this
registration statement of our report dated August 22, 2001 on Aderis
Pharmaceuticals, Inc. (f/k/a Discovery Therapeutics, Inc.) consolidated
financial statements included herein and to all references to our Firm included
in this registration statement.

/s/ Arthur Andersen LLP

Boston, Massachusetts
January 10, 2002