Buy Oxycodone Online With Ease. If you want to buy Oxycodone online, there are some important things to consider. This article will provide tips and guidance on safely ordering Oxycodone online. Oxycodone is a powerful opioid painkiller that can be used to treat moderate-to-severe pain. Oxycodone is the most widely prescribed opioid, meaning it's frequently misused and abused by those who take it for nonmedical reasons or use it too often. It's also a drug of choice for heroin users, as it can quickly lead to addiction.