Buy Oxycodone 20mg Online 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 should be used only if you have been regularly taking moderate to large amounts of opioid pain medication. These strengths may cause an overdose. if taken by a person who has not been regularly taking opioids. Do not use the extended-release form of oxycodone to relieve pain that is mild or that will go away in a few days. This medication is not for occasional ("as needed") use.