New research suggests that differences in tobacco consumption reflect, in part, differences in the functional efficacy of a specific type of receptor in a pathway of the brain. In animal studies, nicotinic acetylcholine receptors with the α5 subunit played a key role in producing aversive responses to nicotine, thereby dissuading further consumption of the drug.
February 2007 Discusses the work of NIDA’s Division of Basic Neuroscience and Behavioral Research, the Institute’s locus for studies into the fundamental brain mechanisms underlying drug abuse and addiction.
Marijuana-dependent outpatients who were treated with the medication gabapentin in a pilot clinical trial reduced their cannabis use more and reported fewer symptoms of drug withdrawal than patients who received a placebo.
Reports on the results of a clinical trial that tested the effectiveness of a cocaine vaccine designed as a therapy for cocaine abuse and plans underway for a new study of 300 patients to confirm these results.