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NCI Dictionary of Cancer Terms

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NCI Dictionary of Cancer Terms



methadone hydrochloride  listen  (MEH-thuh-DONE HY-droh-KLOR-ide)

  A drug used to treat moderate to severe pain that does not respond to other types of pain medicine. It is also used to help people who are addicted to opioid drugs such as heroin. Methadone hydrochloride binds to opioid receptors in the central nervous system. It is a type of analgesic agent and a type of opioid.