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An evaluation of the reinforcing effects of memantine in cocaine-dependent humans.

Author(s): Vosburg SK, Hart CL, Haney M, Foltin RW

Affiliation(s): College of Physicians and Surgeons of Columbia University, New York State Psychiatric Institute, New York, NY 10032, USA. skv2001@columbia.edu

Publication date & source: 2005-08-01, Drug Alcohol Depend., 79(2):257-60. Epub 2005 Mar 3.

Publication type: Clinical Trial; Randomized Controlled Trial

The purpose of this double-blind, outpatient study was to evaluate the reinforcing and subjective effects of the uncompetitive N-methyl-d-aspartate (NMDA) antagonist memantine in cocaine-dependent humans. Eight participants (two females, six males) completed this study which consisted of three blocks of seven sessions; each block tested a different dose of memantine. During the first two sessions of each block, participants "sampled" the memantine capsule (10, 20, or 30 mg) and the placebo capsule that were available for the next five sessions. During the five subsequent sessions, participants had an opportunity to self-administer either the active or placebo capsule. Memantine was not reinforcing and subjective-effects ratings were not altered as a function of dose. Results suggest that these doses of memantine do not have abuse liability in cocaine-dependent individuals.

Page last updated: 2006-01-31

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