Oxycodone is a synthetic opioid medication used to treat moderate to severe pain. You can conveniently Buy Oxycodone Online it is sold under the brand name Oxycontin. Opioid medications are narcotics; doctors prescribe these to treat moderate and severe pain. It is most effective for acute pain, the pain caused by some injury, a strain, or a sprain. Oxycodone blocks the pain sensation in the nerves and the brain and changes how your body responds to pain.