Buy Oxycodone 30mg Online, Oxycodone 30mg is used to help relieve severe ongoing pain. Oxycodone belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain. The higher strengths of this drug (more than 40 milligrams per tablet) should be used only if you have been regularly taking moderate to large amounts of opioid pain medication.