论文部分内容阅读
控释系统在此系统中,药物混合于高分子材料中,药物释放的速率取决于制剂(高分子基质和药物)的性质,而较少依赖于环境因素,例如pH 和病人的体内变化。控释制剂有如下优点:(1)通过单次给药,能使药物保持在需要的治疗范围内;(2)能使药
Controlled release systems In this system, the drug is mixed with the polymer material. The rate of drug release depends on the nature of the formulation (polymer matrix and drug) and less on environmental factors such as pH and in vivo changes in the patient. Controlled release formulations have the following advantages: (1) the drug can be maintained in the desired therapeutic range by a single administration; (2)