National Institute on Drug Abuse

The National Institute on Drug Abuse (NIDA) is a United States federal government research institute whose mission is to "advance science on the causes and consequences of drug use and addiction and to apply that knowledge to improve individual and public health."

The institute has conducted an in-depth study of addiction according to its biological, behavioral and social components. It has also supported many treatments such as nicotine patches and gums, and performed research into AIDS and other drug-related diseases. Its monopoly on the supply of research-grade marijuana has proved controversial. Provided by Wikipedia