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NIDA

The Neurobiology of Drug Addiction

1: The action of heroin (morphine)

The action of heroin

Heroin is an addictive drug, although not all users become addicted. Environment and the personality of the user are important in producing addiction. Heroin produces euphoria or pleasurable feelings and can be a positive reinforcer by interacting with the reward pathway in the brain. Indicate that you will explain how this happens.

This page was last updated January 2007