首页>
外国专利>
MICROSPHERES CONTAINING PHYSIOLOGICALLY ACTIVE SUBSTANCES OF THE POLYMOLCHAIC ACID TYPE AND METHOD FOR THE PRODUCTION THEREOF.
MICROSPHERES CONTAINING PHYSIOLOGICALLY ACTIVE SUBSTANCES OF THE POLYMOLCHAIC ACID TYPE AND METHOD FOR THE PRODUCTION THEREOF.
展开▼
机译:包含多聚乳酸类型的生理活性物质的微球及其制备方法。
展开▼
页面导航
摘要
著录项
相似文献
摘要
Microspheres comprising polylactic acid and a water soluble physiologically active substance and having a mean particle size of from about 0.01 mu m to 300 mu m, which show not more than 30 % of an eluted amount of said physiologically active substance based on the content of said physiologically active substance in the polylactic acid type microspheres after 24 hours in in vitro elution test in phosphate buffer of pH 7.4 at 37 DEG C, and a process for preparing the same. The polylactic acid type microspheres of this invention is advantageous in that the active substance can be uniformly incorporated into the microspheres without loss of the activity, can gradually release the active substance for a long time of period of more than one week.
展开▼