What is it drugs?

A drug is a chemical substance that can change how your body and mind work. Drugs of abuse are substances that people use to get high and change how they feel. They may be illegal drugs like marijuana, cocaine, or heroin. Or they may be legal for adults only, like alcohol and tobacco. read more

Learn the facts about the most commonly abused drugs. Each drug page includes a brief overview, street and clinical names, the effects of the drug on the brain and body, statistics and trends, and relevant publications and articles written by NIDA researchers and scientists. read more