Pentoxifylline and its metabolites can reduce blood viscosity and improve blood rheology. The exact mechanism of action has not yet been determined. Pentoxifylline has the effect of reducing blood viscosity, increasing red blood cell deformability, improving the blood rheology of white blood cells in a dose-dependent manner, and can inhibit the adhesion and activation of neutrophils. For patients with chronic peripheral arterial vascular disease, this product can increase blood flow, improve microcirculation and increase oxygen supply to tissues.

It can inhibit platelet aggregation and prevent thrombosis. It can also counteract vascular damage caused by 5-hydroxytryptamine and bradykinin, increase capillary resistance, reduce capillary permeability, and prevent edema caused by increased vascular permeability.

It has the effects of anti-platelet aggregation, dilating arterioles, improving microcirculation, activating blood circulation and removing blood stasis, and has the effect of disaggregating aggregated platelets

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.