Opana ER is a dangerous medication and can adversely affect your health if taken inappropriately. To ensure that Opana ER is safe for you; please consider all the necessary instructions and take care of the following precautions while using Opana ER:Please don't take Opana ER ifyou are allergic to it or any of its components or similar drugs.Taking Opana ER is not that safe or effective if you have or ever had the following health disorders:Head injuries Seizures or convulsions Breathing disorders Sleep apnea (brea...
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