BRAVO GONZALEZ Roberto Carlos,BUSER Thomas,GOUTTE Frederic Jean-Claude,BASIT Abdul Waseh,VARUM Felipe Jose Oliveria,FREIRE Ana Cristina
申请号：
SI201331409
公开号：
SI3278792T1
申请日:
2013.04.29
申请国别(地区):
SI
年份:
2019
代理人:
摘要：
Delayed release of a drug to the colon is achieved from a delayed release formulation comprising a core and a coating for the core. The core comprises a drug and the coating comprises an inner layer and an outer layer. The outer layer comprises a mixture of a first polymeric material which is susceptible to attack by colonic bacteria, and a second polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a third polymeric material which is soluble in intestinal fluid.
