Oxycodone (OxyIR®, OxyContin®) is a medicine used to treat pain. It may be given as a capsule, liquid, tablet, or controlled release tablet. It is also available as a combination product mixed with acetaminophen, the active ingredient in Tylenol. These products are available under the brand names Vicodin, Percocet, Tylox and Roxicet. They are also used to treat pain.