Methadose (generic: methadone) is a prescription medication that contains a long-acting opioid (narcotic) pain medication. It is used to treat moderate to severe pain in people that do not respond to non-narcotic pain medicines, and to control withdrawal symptoms in people being treated for narcotic drug addiction. Although Methadose belongs to the same group of drugs as heroin and morphine, it acts differently in the body and is helpful in treating addiction because it helps eliminate the cravings addicts experience during withdrawal.

This medication comes in tablet form and as a concentrated liquid that must be diluted before taking. When used to relieve pain, Methadose may be taken every 4 to 12 hours.

Common side effects of Methadose include dizziness, drowsiness, nausea, and constipation. Do not drive or operate heavy machinery until you know how Methadose affects you.