Oxycodone is a prescription opioid pain medication used for moderate to severe pain when other treatments are insufficient. It works by reducing pain signals in the brain and spinal cord. Because of risks such as drowsiness, constipation, slowed breathing, tolerance, and dependence, oxycodone is a Schedule II controlled substance in the United States and requires a valid prescription. Licensed pharmacies may offer telehealth evaluation and expedited dispatch only after prescription verification and pharmacist review.