Roxicodone tablets are oxycodone hydrochloride tablets made from one of the opioid alkaloids called thebaine. It also contains inactive ingredients like stearic acid, microcrystalline cellulose, and cornstarch. When you buy Roxicodone online, you can probably buy the best pain relievers, ranging from moderate to severe pain.t is usually taken by mouth, and is available in immediate-release and controlled-release formulations .