Contact Information

University of Massachusetts
Medical School
Department of Psychiatry
365 Plantation Street,
Biotech One
Worcester MA 01605

Office 508-856-0480
Fax 508-856-6426

Membership Information

Membership Category:
Research Scientists

Member Since: 2003


Gerardo González-Haddad, M.D.

Felipe González-Castro, Ph.D.


M.D Colegio Mayor de Nuestra Señora del Rosario Bogotá, Colombia
B.S. Colegio San Viator, Bogotá, Colombia

Research Interests

The clinical research that our group has been conducting has focused on the neurobiology and pharmacotherapy for cocaine and opioid dependence. The series of studies have evaluated the extent that enhancing GABA neurotransmission may have in modifying cocaine and opiate taking behavior. In addition, we are interested in understanding whether modulation of glutamate neurotransmission by an uncompetitive NMDA receptor antagonist during opioid agonist treatment may improve treatment outcomes and reduce early relapse in young adults with opiate dependence. The study is expected to provide valuable information whether co-administration of memantine to buprenorphine treatment will modify components of opioid dependence, and therefore become a time-limited alternative to the long term agonist maintenance treatment for young opioid dependent adults.