Schedule I drugs, substances, or chemicals are defined as drugs with no currently accepted medical use and a high potential for abuse. Some examples of Schedule I drugs are: heroin, lysergic acid diethylamide (LSD), marijuana (cannabis), 3,4-methylenedioxymethamphetamine (ecstasy), methaqualone, and peyote.
Controlled Substances Act. Public Law: Public Law 91-513 (text can be found on GovInfo) (https://www.dea.gov/drug-information/csa). Date enacted: October 27, 1970.