Buy Oxycodone Online Quick Home Delivery In the USA. The safest method to obtain your prescription drug is to purchase Oxycodone online and have a reputable delivery service overnight. Go to Medznow.com to Buy Oxycodone online. Oxycodone is an opioid painkiller used for severe pain. Oxycodone binds to specific brain and central nervous system receptors to block pain signals. Oxycodone should only be used orally in tablet form, such as 5mg, 10mg, 15mg, 20mg, 30mg, 40mg, 60mg, and 80mg.