Morphine, heroin, and methadone ________.

A) are stimulants
B) are derived from opium
C) are often used to treat ADHD
D) increase the action of the central nervous system

Opium

A highly addictive narcotic drug extracted from the seed pods of the opium poppy, used historically for pain relief.

Morphine

A powerful opioid pain medication derived from the opium poppy, used to treat moderate to severe pain by acting directly on the central nervous system.

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, often used illicitly.