Written by:
Medically Reviewed by:
Last Updated:
February 17th, 2025
Oxycodone Addiction
What is oxycodone?
Oxycodone is a powerful opioid painkiller used to treat moderate to severe pain, often prescribed for conditions like cancer or after surgery. It works by blocking pain signals to the brain, providing relief when other painkillers aren’t effective.
In the UK, oxycodone is a controlled substance, classified as a Class A drug under the Misuse of Drugs Act 1971. This means it’s legal to use when prescribed by a doctor but illegal to possess or distribute without a prescription.
Due to its strength, oxycodone carries a high risk of addiction, so it’s closely monitored in medical settings.
Why is oxycodone addictive?
Oxycodone works by binding to receptors in the brain that control pain and emotion, flooding the brain with dopamine. While this helps to manage pain, it also creates a sense of euphoria that can become highly addictive.
Over time, the brain becomes dependent on Oxycodone to release dopamine, and the body builds up a tolerance, meaning more of the drug is needed to achieve the same effects. As a result, people may take higher doses or use the drug more frequently than prescribed, leading to addiction.
What makes Oxycodone particularly dangerous is that even those taking it for legitimate pain relief can unknowingly develop dependence, which can spiral into addiction. The cycle of needing more of the drug, combined with withdrawal symptoms when trying to stop, makes it difficult to quit without help.