Abstract
Purpose: To design controlled release ketorolac tromethamol (KT) matrix tablets for increased drug bioavailability.
Methods: Waxes (Compritol® ATO 888, Precirol® ATO 5 and stearic acid – SA) and polymers (hydroxypropyl methylcellulose – HPMC and xanthan gum – XG) were used in the preparation of the matrix tablets at various excipient concentrations for controlled drug delivery.物理属性确定从片片获取药物释放剖面图,药释放机制特征为动能建模解析介质中KT分析量化法也通过某些性能标准验证 。
text-align:说明性;>emstrenge>Results: KT矩阵片板HPCC和XG制作的平板显示比用总蜡制作的平板慢放药剖面图(p < 0.05)。kt释放量随pH增加而增加,因为它是一种微酸(p < 0.05)与HPCC和XG一起制备的所有平板水中都观察到微小差(p > 0.05)。含有40%XG的药片释放速度快于HPCC(30-40%)和XG(30-40%)pH7.2编译的药片(p < 0.05)药片编译用蜡聚合物的释放机制非Fickian式,表示并发/腐扩散/聚合物松散。