What is an example of an opiate?

Heroin is classified as an opiate because it is derived from morphine, which is a natural opiate obtained from the opium poppy. Opiates are substances that act on the opioid receptors in the brain and are primarily used for their pain-relieving properties. Heroin, specifically, is known for its potent effects and is often associated with high potential for addiction and abuse.

The other options do not fall within the opiate classification. Cocaine, for instance, is a stimulant derived from the coca plant, while alcohol is a depressant with different effects on the nervous system. LSD, on the other hand, is a hallucinogenic drug that alters perception and mental state, making them distinctly different from opiates like heroin. Understanding the classification of drugs is crucial for recognizing their effects, risks, and therapeutic uses.