Oxycodone Hydrochloride Tablets are mainly used for the treatment of moderate to severe acute and chronic pain caused by a variety of causes, and its main ingredients are oxycodone hydrochloride and acetaminophen. Oxycodone hydrochloride is an opioid analgesic, which is a pure opioid receptor agonist, and its main therapeutic effect is analgesia. Acetaminophen is a non-steroidal anti-inflammatory drug, the analgesic effect involves peripheral action, and the specific mechanism of action is not clear. However, it can act on hypothalamic thermoregulation and exert antipyretic effects. Dizziness, vertigo, drowsiness, nausea, vomiting, and side effects of irritability, constipation, skin itching and allergy may occur after drug entry. Aminophenoxycodone can also cause serious side effects such as respiratory depression, apnea, circulatory failure, hypotension and shock, and prompt medical attention is needed if any uncomfortable symptoms occur.