DEA Schedule I Drugs: Heroin (diacetylmorphine) LSD (Lysergic acid diethylamide) Marijuana (cannabis, THC) Mescaline (Peyote) MDMA (3,4-methylenedioxymethamphetamine or “ecstasy”) GHB (gamma-hydroxybutyric acid) Ecstasy (MDMA or 3,4-Methylenedioxymethamphetamine) Psilocybin