Ibuprofen and Fenbid are one kind of medicine, Fenbid is the trade name, while Ibuprofen is the generic name. Ibuprofen is a non-steroidal anti-inflammatory and analgesic drug, mainly for the treatment of mild or moderate pain, such as headache, joint pain, lumbago, leg pain, neck and shoulder pain and dysmenorrhea, etc. It can also be used to treat fever caused by common cold or influenza. It is not recommended to use other non-steroidal anti-inflammatory and analgesic drugs during the use of ibuprofen, otherwise it is likely to increase the damage to the liver and the irritation of the gastrointestinal tract, such as naproxen, acetaminophen, diclofenac sodium, celecoxib, etc. In addition, if the fever persists during the use of ibuprofen for fever reduction, it is recommended to use it again at intervals of 4-6 hours, but definitely not more than 4 times in 24 hours.