I*

Cathinone (khat) and methcathinone, GHB, heroin (and some other opioids), LSD, marijuana, MDMA, psilocybin, synthetic cannabinoids

II

Amphetamines, barbiturates (short-acting), phencyclidine

III

Anabolic steroids, paregoric

IV

V

* Cannot be prescribed.

GHB = gamma hydroxybutyrate; LSD = lysergic acid diethylamide; MDMA = methylenedioxymethamphetamine.