Which 1970 law classifies drugs into five schedules?

• A. Harrison Narcotic Act
• B. Kefauver Harris Amendment
• C. Controlled Substances Act
• D. Federal Food, Drug, and Cosmetic Act

Answer: (C)

The key idea is the federal framework that classifies drugs into five schedules based on abuse potential, medical use, and safety. The 1970 law that established and organizes this system is the Controlled Substances Act, which created Schedule I through Schedule V. It uses criteria like how likely a substance is to be abused, whether it has an accepted medical use, and how safe it is for patients when properly used to decide where it sits in the schedule. Schedule I includes substances with high abuse potential and no accepted medical use in the U.S. Schedule II covers drugs with high abuse potential but that do have medical uses and are tightly regulated. Schedule III, IV, and V represent progressively lower abuse potential and looser controls, all with some level of medical use. This framework guides how drugs are prescribed, dispensed, manufactured, and regulated, consolidating prior regulations into a single system. Earlier acts like the Harrison Narcotic Act regulated opiates but did not create the five-schedule scheme, while Kefauver Harris and the Federal Food, Drug, and Cosmetic Act addressed drug safety and approval processes rather than scheduling.