Paeonia paeoniae extract is a natural extract extracted from the ranunculus peony, which is refined, concentrated and dried. Its main component is paeoniflorin. Soluble in methanol, soluble in ethanol.Good thermal stability. Paeoniflorin inhibited intestinal duct, gastric motility and uterine smooth muscle in vitro, and antagonized contractions induced by oxytocin. Paeoniflorin has significant analgesic effect. The extract of Peony can antagonize strychnine induced convulsion. Paeony decoction can inhibit some pathogenic bacteria and fungi. Paeoniflorin has a cooling effect on normal body temperature and can inhibit platelet aggregation. Widely used in the treatment of rheumatoid arthritis, coronary heart disease, gynecological diseases, for senile diseases, enhance the constitution and immune function, anti-inflammatory cough, expectorant asthma and other aspects, especially in the treatment of chronic respiratory diseases in the elderly can be used as auxiliary drugs.