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More model informationOpana ER 40 mg Tablet belongs to a class of drugs known as long-acting opioid analgesics and treats moderate to severe chronic pain. This Tablet works in the brain to change and your body feels fast and responds to pain. Take Opana ER 40 mg medicine on a daily schedule. Take this medicine without food(1 hour before eating and 2 hours after eating) as directed by your doctor. If you have any questions related to this medicine please ask your doctor.
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