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Definition of National Institute on Drug Abuse (NIDA)
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
National Institute on Drug Abuse (NIDA): One of the National Institutes of Health in the U.S., NIDA's mission is to "lead the nation in bringing the power of science to bear on drug abuse and addiction through support and conduct of research across a broad range of disciplines and rapid and effective dissemination of results of that research to improve drug abuse and addiction prevention, treatment, and policy."