Ibuprofen extended-release capsules are indicated for fever caused by common cold or influenza in adults, and also for the relief of mild to moderate pain. Its main ingredient is ibuprofen, which is a non-steroidal anti-inflammatory drug that inhibits the synthesis of prostaglandins (prostaglandins can cause fever in the body), thus achieving the effect of reducing fever. Because it is an extended-release dosage form, it allows the drug to be released gradually in the body, and the effect of the drug can last for 12 hours per dose. Therefore, 2 doses per day are sufficient. The effect of the drug usually starts in half an hour after taking it, and the effect of reducing fever is relatively good. However, if the fever does not go down within 3 days, you need to seek medical attention. Ibuprofen is generally safe, but some people may experience gastrointestinal side effects, so it is recommended to take it after meals. At the same time, you should not take other antipyretic and analgesic drugs, such as some compound anti-cold drugs, which can increase the possibility of adverse gastrointestinal reactions and ulcers. A small number of people can also experience allergic reactions, so once the rash and other symptoms appear, the drug should be promptly discontinued. Moreover, the drug is unfavorable to fetus and delivery, and should be absolutely prohibited for pregnant and lactating women. In addition, while using ibuprofen suppositories to reduce fever, you can also take physical cooling methods, such as wiping the body with 25%-30% alcohol or cold water, ice packs, drinking more warm water, etc. The effect is better.