When menstrual pain occurs clinically, often patients will take ibuprofen orally to give pain relief. Ibuprofen is a painkiller and has the following common clinical side effects: 1. It may cause gastrointestinal reactions, such as nausea, vomiting, upper abdominal discomfort, and some people may show mild diarrhea, which is best to take some food by mouth before using the drug to avoid such gastrointestinal reactions. 2. As ibuprofen is a painkiller, it will have the effect of killing white blood cells in the clinic, and if taken for a long time, it may reduce white blood cells and make the body’s resistance decrease. 3. 3.Some people may experience dizziness when taking ibuprofen orally, so if you have menstrual pain, you can occasionally use ibuprofen for pain relief in clinical practice. But it is not recommended for long-term use, it is best to find out the cause of dysmenorrhea, according to the results and then targeted medication.