| 发明名称 |
Controlled drug release system of retinoic acid |
| 摘要 |
The present invention relates to a controlled drug release system in which a certain ratio or retinoic acid is incorporated into a microsphere comprising biodegradable polymer and amphoteric block copolymer having both hydrophilic and hydrophobic groups.
|
| 申请公布号 |
US6764698(B1) |
申请公布日期 |
2004.07.20 |
| 申请号 |
US20010806287 |
申请日期 |
2001.03.28 |
| 申请人 |
KWANGJU INSTITUTE OF SCIENCE & TECHNOLOGY;SHIN POONG PHARMACEUTICAL CO., LTD. |
发明人 |
BYUN YOUNG-RO;KIM SANG-YOON;KIM SUN-HEE;CHOI YONG-DOO;HAN IN-SUK;LEE KWANG-SUN;KIM CHUL-HEE |
| 分类号 |
A61K9/50;A61J3/00;A61K9/16;A61K31/203;A61K47/34;A61K47/36;A61K47/42;A61P35/00;(IPC1-7):A61K9/14 |
主分类号 |
A61K9/50 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
