Methadose is a brand name for a medication that contains methadone hydrochloride, which is a synthetic opioid medication used to treat moderate to severe pain and to help people who are addicted to opioids, such as heroin, to overcome their addiction.

Methadone works by binding to opioid receptors in the brain and spinal cord, which blocks the transmission of pain signals and can produce a feeling of euphoria. It is also used to help people who are addicted to opioids to overcome their addiction by reducing the cravings and withdrawal symptoms associated with opioid use. Methadone is available in various forms, including tablets, liquid, and injection.