Drugs of Abuse, A DEA Resource Guide, is designed to be a reliable resource on the most commonly abused and misused drugs in the United States. This comprehensive guide provides important information about the harms and consequences of drug use by describing a drug’s effects on the body and mind, overdose potential, origin, legal status, and other key facts.
The Controlled Substances Act (CSA) places all substances which were in some manner regulated under existing federal law into one of five schedules. This placement is based upon the substance’s medical use, potential for abuse, and safety or dependence liability.
https://www.dea.gov/sites/default/files/drug_of_abuse.pdf