Yingtaiqing is a kind of non-steroidal anti-inflammatory drug, mainly through the inhibition of cyclo-oxygenase activity, reducing prostaglandin synthesis and has a powerful anti-inflammatory, analgesic, antipyretic and decongestive effects, at the same time, due to the reduction of the synthesis of prostaglandins, there will be a corresponding adverse reaction, that is, side effects. Common side effects are mainly gastrointestinal reactions, such as nausea, vomiting, abdominal pain, diarrhea, abdominal distension, poor appetite may occur after taking the drug, and in severe cases, there will be peptic ulcers, or even bleeding, perforation, etc.; there may also be renal adverse reactions, water and sodium retention, hyperkalemia, hematuria, proteinuria, interstitial nephritis, etc., and in severe cases, renal necrosis can occur, leading to renal failure. In addition, it may also cause peripheral blood leukopenia or coagulation disorders, liver function impairment.