Opana ER, an extended-release form of oxymorphone
, is available as tablets in strengths of 5 mg
, 7½ mg
, 10 mg
, 15 mg
, 20 mg
, 30 mg, and 40 mg. Some resources assert that 2, 12 and/or 15 mg IR tablets and 25, 36 and 50 mg extended release tablets will be introduced although apparently the timeline on that is not known to the public at this time. Opana Extended-Release tablets are based on the TIMERx system developed by a consortium led by Endo and Penwest.