本文就口服渗透泵型控释片的制备工艺研究进展情况进行了综述。

This paper reviewed the recent progress in preparation craft of osmotic pump controlled release tablets.

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以盐酸维拉帕米为模型药物，制备了口服渗透泵片。通过考察渗透泵片体外释药各过程的速率，研究口服渗透泵制剂释药的基本过程及其特性。

The main processes of the drug delivery of oral osmotic pump system were studied to investigate its delivery characteristics, with verapamil hydrochloride as the model drug.

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