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玻璃酸钠在眼用溶液中的作用 被引量:7

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摘要 早在20世纪70年代就发现眼局部给药治疗眼病,虽针对性强、全身毒副作用小,但因结膜囊内的体积小及泪液的稀释作用,使药物存留量小,作用时间短,限制了药效的发挥.合成高分子聚合物如纤维素的衍生物、聚丙烯酸(PAA)、聚乙烯醇(PVA)及聚乙烯吡咯烷酮(PVP)等增加滴眼液的黏度,可延长药液在眼内的滞留时间从而提高疗效.然而合成高分子物质的溶液多为牛顿流体,黏度随浓度的增大而提高,当黏度增大到一定程度,会使眼睑不易眨动,且对眼睛有刺激作用[1].
出处 《中南药学》 CAS 2004年第4期229-231,共3页 Central South Pharmacy
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