The different models were used to study the releasing mechanism of isoniazid sustained-release capsules, which accorded with criterion of assay and FDA release limit.

• 对采用优化处方制备的三批样品进行了质量评价和初步稳定性实验,还采用不同的模型研究了异烟肼缓释胶囊的释药机理,该缓释胶囊符合FDA释放限度要求。