藻酸双酯钠(PSS)为海藻提取物,是一种新的素肝类药物.具有肝素样的生理活性。但无肝素的毒副作用,而具有强的分散乳化性能,使富含负电荷的红细胞表面增强相互间的排斥力,故阻止红细胞之间或红细胞与血管壁的粘附,从而有降低血粘度,使 Sodium alginate (PSS), a seaweed extract, is a new class of hepatic drugs with heparin-like physiological activity. But without the toxic side effects of heparin, and has a strong dispersion of emulsifying properties, so that the surface of negatively charged red blood cells enhance the repulsion between each other, it prevents red blood cells or red blood cells and vascular wall adhesion, thereby reducing blood viscosity,