Oxycontin is the medication used to treat pain and it is an opioid analgesic. Treats moderate to severe pain when the pain is not managed by other opioids. It comes in various doses. It comes in white, having a round, convex shape marked OP on one side and 10 on the other. It begins working to relieve pain in about 2 to 4 hours, although it reaches its peak effect in 15 to 30 hours.Buy Oxycontin op 20 mg Online using Credit/debit card payment.