In 1970 the Comprehensive Drug Abuse Prevention and Control Act was passed into law. Title II of this law, the Controlled Substances Act, is the legal foundation of narcotics enforcement in the United States. The Controlled Substance Act regulates the manufacture and distribution of drugs, and places all drugs into one of five schedules.
SCHEDULE I
A: Drug has no current accepted medical use.
B: Drug has a high potential for abuse.Class examples: Heroin, Methaqualone, LSD, Peyote, Psilocybin, Marijuana, Hashish, Hash Oil, and various amphetamine variants.
SCHEDULE II
A: Drug has current accepted medical use.
B: Drug has high potential for abuse.Class examples: Dilaudid, Demerol, Methadone, Cocaine, PCP, Morphine and certain cannibis, amphetamine, and barbiturates types .
SCHEDULE III
A: Drug has current accepted medical use.
B: Drug has medium potential for abuse.Class examples: Opium, Vicodan, Tylenol w/codeine and other narcotic, amphetamine, and barbiturate types.
SCHEDULE IV
A: Drug has current accepted medical use.
B: Drug has low potential for abuse.Class Examples: Darvocet, Xanax, Valium, Halcyon, Ambien, Ativan, and other barbiturate types.
SCHEDULE V
A: Drug has accepted medical use.
B: Drug has lowest potential for abuse.Class examples: Lomotil, Phenergan, and liquid suspensions.