We show from in vitro release experiments that microsphere size has a significant effect on drug release rate. The initial release rate decreased with an increase in microsphere size.

从体外释放试验中可知微球大小对药物释放率有很大的作用。药物开始释放率与微球大小负相关。

Objective: To study the in vitro release rate of ambroxol HCl osmotic pump controlled release tablets.

前言：目的：研究盐酸氨溴索渗透泵控释片的体外释放度。

Vitamin B12 was selected as a model drug and the in vitro release properties was studied.

以维生素b12为模型药物，研究药物的释放性质。