OxyContin OP 20 mg is a long-acting opioid medication that releases 20 mg of oxycodone over a 12-hour period, specifically designed to help manage moderate to severe chronic pain. The "OP" version comes with features that deter abuse, making it harder to misuse by crushing or dissolving the pills. This medication is intended for patients who need ongoing, long-term opioid treatment, and it’s crucial to use it only as prescribed and under strict medical supervision due to potential risks like addiction, overdose, and respiratory depression.