Methadone Hydrochloride Injection USP, 200 mg/20 mL (10 mg/mL) Multi-Dose Vial is indicated (I) for the management of severe and persistent pain that requires an extended treatment period with a ...

Cases of methadone causing edema and weight gain have been reported with both tablets and the liquid formulation. A 31-year-old man taking methadone 500 mg twice daily as part of a detoxification ...