Oxycodone is a potent opioid medication used to treat moderate to severe pain. It works by changing the way the brain and nervous system respond to pain. While oxycodone can be very effective in managing pain, it also carries a risk of addiction, abuse, and overdose. This is why oxycodone is classified as a controlled substance and is only available with a prescription from a licensed healthcare provider. However, there has been a growing trend of people trying to obtain oxycodone without a prescription through online sources.