1 EXHIBIT 10.1 AMENDMENT TO PROMISSORY NOTE ---------------------------- THIS AMENDMENT dated at of October 29, 1999, (the "Amendment") is made by and between Dr. Douglas Reed (the "Borrower") and GelTex Pharmaceuticals, Inc., a Delaware corporation...Geltex Pharmaceuticals Inc • November 12th, 1999 • Pharmaceutical preparations
1 EXHIBIT 4.1Geltex Pharmaceuticals Inc • November 12th, 1999 • Pharmaceutical preparations • Massachusetts
