Opana ER 15 mg stands for “Oxymorphone Hydrochloride extended-release tablets”. It is a Generic name for “Oxymorphone”. The brand name of this medicine is OPANA ER. It is used in the treatment of pain. It belongs to a group of drugs known as long-acting opioid analgesics. The medicine color is white and the shape is eight-sided. Take this medicine daily rout...