Ibuprofen is an antipyretic. The main link of action of ibuprofen is to reduce the synthesis of prostaglandins by inhibiting cyclooxygenase, which will produce analgesic and anti-inflammatory effects, and play an antipyretic role through the hypothalamic thermoregulatory center. Ibuprofen is a relatively common clinical antipyretic and analgesic drug that can be used for rheumatic and rheumatoid arthritis. Its anti-inflammatory, analgesic and antipyretic effects are similar to those of aspirin and pautazone and better than acetaminophen. Ibuprofen also has adverse reactions, the most common of which are digestive adverse reactions, which may include burning sensation in the stomach, stomach pain, nausea, vomiting, etc. There are also rare adverse reactions that can be manifested in the neurological system, where patients may experience headache, dizziness, tinnitus, etc. as a result of taking ibuprofen.