Methadone is an FDA-approved and doctor's prescription medication for patients to treat their opioid addiction like heroin. It is used as a part of an approved treatment also be used for the relief of extreme pain. Tell your doctor if you have any health problems just as; Heart problems, Lung issues, Kidney disease, and Brain tumor. The Methadone Doasges Available **> Methadone 5 mg **>Methadone 10 mg