Do you want to get off of Methadone? Methadone is a synthetic opioid prescribed for chronic acute pain or for the detoxification process for heroin or prescription opioid addicts. Methadose is most commonly sold by the brand name Dolphine, Symoron, Amidone, Methadose, Physeptone, and Heptadon. Methadone or Methadone can be taken orally, intravenous, sublingual and through the rectum. Methadose is more known for what's called," Methadone Maintenance Therapy". Methadose maintenance has been becoming more and more common over… "Are you struggling with methadone addiction?"