As a drug additive,polyvinyl alcohol(PVA) has merits of solubility,easy forming ,strong conglutination,high thermal stability,low toxicity and no irritation.

• 聚乙烯醇(PVA)作为药用辅料,具有易溶于水、成膜性好、粘接力强、热稳定性高、毒性低、无刺激性等优点,近年来,在医药工业中应用日趋广泛。