Which of the following drugs are classified as schedule III drugs? Select all that apply.

The classification of drugs into schedules is based on their potential for abuse and accepted medical use. Schedule III drugs are defined as having a moderate to low potential for physical and psychological dependence.

Promethazine with codeine cough syrup is a combination medication that contains codeine, which is an opioid. It is classified as a Schedule V substance because codeine, when combined with certain non-narcotic ingredients in specific concentrations, falls under this more lenient schedule due to its lower risk of dependence compared to stronger opioids.

Perampanel is an anticonvulsant medication used to control seizures in epilepsy. It is not classified as a controlled substance, making it a suitable candidate for Schedule III in your selection.

Glutethimide is a sedative-hypnotic that falls under Schedule II due to its high potential for abuse and addiction.

Sodium oxybate (Xyrem) is used to treat narcolepsy and is classified as a Schedule I substance due to its significant abuse potential and the risks of dependence.

Since Perampanel is not classified as a controlled substance, it is the only drug listed that might not be correctly recognized under Schedule III, and thus selecting it as the only correct answer does not fully encompass the actual class