Which of the following drugs is classified as an opiate?

Heroin is classified as an opiate because it is derived from morphine, which is naturally found in the opium poppy plant. Opiates are substances that work by binding to specific receptors in the brain to produce pain-relieving effects as well as feelings of euphoria. Heroin, in particular, is known for its potential for abuse and addiction due to its powerful effects on the central nervous system.

In contrast, marijuana is a cannabis product with psychoactive properties but does not fall under the category of opiates. Cocaine is a stimulant derived from coca leaves, known for its energizing effects rather than the sedative effects typical of opiates. LSD is a hallucinogenic drug that alters perception and does not belong to the opiate classification. Understanding these distinctions is important for recognizing the different categories of drugs and their respective effects on the body and mind.