1. Calcium hydroxybenzenesulfonic acid can inhibit the high permeability of vasoactive substances (histamine, 5-hydroxytryptamine, bradykinin, hyaluronase and prostaglandin) on microvessels, reduce vascular intima damage, improve the biosynthesis of basement membrane collagen, improve the permeability of capillary wall, improve the flexibility of red blood cells, reduce blood viscosity, and improve lymphatic reflux. Thereby reducing the pathological hyperpermeability of the microvascular wall. 2. Calcium isobenesulfonate can reduce the levels of fibrinogen and globulin, reduce the hyperaggregation of red blood cells, activate the activity of fibrinase, increase the solubility of blood fibrin, and thus reduce the viscosity of blood Chemicalbook. Reduce the synthesis and release of platelet aggregation factors, inhibit a variety of aggregation factors, cause aggregation reaction and platelet spontaneous aggregation, reduce platelet activity, prevent thrombosis, and its effects are dose-dependent. 3. For microvascular diseases, calcium ISobenesulfonate can increase the diameter of fine arteries and veins, increase the number of open capillaries, significantly accelerate the blood flow rate, and significantly improve microcirculation. Eliminate or relieve edema, capillary bleeding, weight and pressure in the lower extremities. 4. Calcium isobenesulfate significantly reduces the content of sorbitol, blocks the channel of sugar to sorbitol, and inhibits the dysfunction caused by the increase of sorbitol in blood cells.