Oxycodone is an opioid pain relief medication. It is prescribed to get relief from pain due to surgery, injury, and other conditions. Oxycodone works by binding to opioid receptors in the central nervous system, which blocks the pain message from reaching the brain. Oxycodone lasts longer than other non opioid medications. A patient suffering from acute pain needs long-term relief(up to 7-8 hours), In those cases Oxycodone works more effectively than other pain killers.