Arkansas mimics the federal practice of dividing drugs into categories, called schedules, based on the drug’s potency, the potential for addiction, health risks, and possible medical uses:

• Schedule I — This group has the highest potential for abuse and addiction, with no accepted medical use. Drugs on the list include heroin, methaqualone, LSD, peyote, psilocybin, mescaline, and other powerful opiate and hallucinogenic drugs.
• Schedule II — This category includes methamphetamine, morphine, oxycodone, cocaine, methadone and raw opium.
• Schedule III — These drugs include anabolic steroids and strong prescription stimulants and depressants.
• Schedule IV — This category includes prescription depressants, such as phenobarbital and stimulants, such as pemoline.
• Schedule V — This group contains weaker stimulants and painkillers, such as ephedrine and codeine. Law enforcement may target people with large amounts of Schedule V drugs because they suspect they are using them in drug manufacturing operations.
• Schedule VI — This category includes marijuana, salvia and their synthetic equivalents.

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