Which of the following is classified as a Schedule II drug?

Hydrocodone is classified as a Schedule II drug due to its high potential for abuse and the risk of severe psychological or physical dependence associated with its use. Schedule II substances are strictly regulated and require a written prescription from a licensed healthcare provider with no refills allowed unless specified by the prescriber. This classification reflects the recognition of hydrocodone's utility in managing severe pain while also acknowledging the risks related to addiction and misuse.

On the other hand, Tylenol #3 contains a combination of acetaminophen and codeine, which is classified as a Schedule III drug. Codeine containing cough syrups, although sometimes categorized differently depending on the formulation and concentration, often fall under Schedule V if they contain less than a certain concentration. Lacosamide, primarily used to treat epilepsy, does not have a high abuse potential and is classified as a Schedule V substance. Understanding these classifications helps in grasping the legal and clinical considerations in prescribing and dispensing controlled substances.