It is a highly selective 5-HT3 receptor antagonist, which has a good preventive and therapeutic effect on nausea and vomiting caused by radiotherapy, chemotherapy and surgery. It inhibits the occurrence of nausea and vomiting by antagonizing the 5-HT3 receptors in the central chemoreceptor area and peripheral vagus nerve endings. This product has high selectivity and no adverse reactions such as extrapyramidal reactions and excessive sedation.

It is a vasodilator that can dilate coronary arteries and cerebral blood vessels, reduce myocardial oxygen consumption, improve microcirculation and resist platelet aggregation. Animal experiments have shown that: 1. The various total flavonoid compounds in Pueraria root can relax smooth muscles, while the contractile components may be substances such as choline, acetylcholine and carbazine R; 2. Pueraria root has a certain antihypertensive effect on normal and hypertensive animals; 3. Pueraria root total flavonoids and puerarin have a significant dilating effect on coronary arteries, which can dilate normal and spasmodic coronary arteries. After intravenous injection of 30mg/Kg, coronary blood flow can increase by 40% and vascular resistance can decrease by 29%; 4. Puerarin can also inhibit the release of 5-HT in platelets induced by thrombin.

No specific pharmacological effects mentioned

(1) Inhibit plasminogen activators, preventing plasminogen from activating into plasmin, thereby inhibiting the dissolution of fibrin and producing a hemostatic effect. (2) Promote the release of active substances from platelets, enhance platelet aggregation and adhesion, shorten coagulation time, and produce a hemostatic effect. (3) Enhance capillary resistance and reduce capillary permeability, thereby reducing bleeding.