The main function of Paeonia lactiflora total glucoside is to regulate immunity. White peony total glucoside is a kind of Chinese patent medicine preparation, in the clinical especially rheumatology and immunology department application is very wide, the main function is to regulate the immune as well as the role of liver protection, liver protection. Therefore, the application of Paeonia lactiflora capsules is very wide, such as can be used for rheumatoid arthritis, systemic lupus erythematosus, dry syndrome or systemic vasculitis, scleroderma, polymyositis, dermatomyositis, etc., a variety of diseases can be applied. White peony total glucoside also has certain adverse reactions, the most common is gastrointestinal reaction, patients may take the abdominal pain or diarrhea, but the majority of patients by the drug to reduce the amount of or stop the drug symptoms will be relieved on their own.