Merck Manual

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Some Examples of Controlled Substances*

Some Examples of Controlled Substances*

Schedule

Examples

I

II

Amphetamines, barbiturates (short-acting), cocaine, hydrocodone (including hydrocodone combination products), hydromorphone, methadone, methylphenidate, morphine and other strong opioid agonists, oxycodone, hydrocodone, phencyclidine

III

Anabolic steroids, barbiturates (intermediate-acting), buprenorphine, dihydrocodeine, dronabinol, ketamine, paregoric

IV

Barbiturates (long-acting), benzodiazepines, chloral hydrate, modafinil, meprobamate, pentazocine, propoxyphene, zolpidem

V

Cough suppressants containing small amounts of codeine, pregabalin

*The Drug Enforcement Administration maintains a complete alphabetical listing of controlled substances.

Cannot be prescribed.

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