Based on the American pharmacopoeia about in vitro release degree of the long-acting phenytoin sodium capsules, we produced phenytoin sodium sustained release tablets and explored its release degree in vitro.

• 参照美国药典收载的“延效苯妥英钠胶囊”的体外释放速率,筛选处方,制成苯妥英钠缓释片,并进行体外释放度测定。