Oxycodone is a pain relief painkiller salt that is used in pain. Oxycodone is a potent opioid. Oxycodone is also available in combination with aspirin, acetaminophen, and ibuprofen. oxycodone comes in several forms like liquid, tablet, concentrated solution, capsules, etc. Oxycodone may cause dry mouth, stomach pain, drowsiness, flushing, mood changes, and headache. Oxycodone was sold under many brands such as Roxicodone and Oxycontin. This drug is highly addictive and a Commonly abused drug.