Oxycodone is a brand name for the FDA-approved opioid painkiller, hydrocodone. It is available in tablet and liquid form, as well as injectable solutions. Oxycodone has similar effects to heroin but it comes in less potent forms that can be prescribed by physicians. Oxycodone is a popular prescription painkiller available in pill, liquid, and injectable forms for your convenience. It's like heroin but with built-in restrictions to ensure patient safety – even though it is still highly addictive.