Hurry up!! and get Opana ER now, limited stock is out. Opana ER has been a potent drug used to treat opioid addiction. It functions by obstructing the brain's opiate effects, which lessens cravings and withdrawal symptoms. But for a long while, buying Opana ER tablets, therapy required physically visiting a clinic each day to get a dose. The stigma and inconvenience of visiting a clinic kept many people from getting the assistance they required.