CAMBRIDGE, Mass.--(BUSINESS WIRE)--Javelin Pharmaceuticals, Inc. (Amex: JAV), a leading developer of specialty pharmaceutical products for pain management, today announced that Dr. Daniel Carr, Vice Chairman and Chief Medical Officer, has become President. Fred Mermelstein, Ph.D., Javelin’s Founder and President, has assumed the role of Executive Director and continues to work actively for Javelin. Both Drs. Carr and Mermelstein will report to Javelin’s CEO, Martin J. Driscoll.