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fg1017

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[求助] 盐酸土霉素颗粒溶解度差

之前处方 溶解度各方面都合格
盐酸土霉素  15%
乳糖            85%
柠檬黄        适量
无水乙醇PVP K30 做粘合剂

后来换处方
盐酸土霉素   10%
乳糖             80%
用过 干淀粉 10%    交联PVP10%
粘合剂用PVP K30 8%的水溶液···但是溶解度差,下面铺了1层的颗粒 粉末。。直接用水制软材也是这样·为什么会这样··
求解
  还有乳糖不适合用于颗粒制备么?听说的·····
颗粒剂不一定要用崩解剂吧·?~

[ Last edited by fg1017 on 2013-9-6 at 16:14 ]
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