Drug Enforcement Administration Schedule of Drugs and Examples

Schedule I: Controlled Substances

Substances in this schedule have a high potential for abuse and have no currently accepted medical use in treatment in the United States. Accepted safety for use of the drug or other substance under medical supervision is lacking.

Some examples of substances listed in schedule I are heroin, lysergic acid diethylamide, marijuana (cannabis), peyote, methaqualone, and 3,4-methylenedioxymethamphetamine (“ecstasy”).