Nitin Bhalachandra Dharmadhikari,Yashoraj Rupsinh Zala
申请号：
US12092632
公开号：
US08187633B2
申请日:
2006.11.03
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The present invention relates to a tablet composed of a core and a coating said core is formed by two or more layers, wherein at least one of them contains an active agent (3). Wherein one of said layers is formulated as a swellable composition (2), the other one (4) is composed of inert compounds retaining its size at least until the coated tablet is emptied from the stomach. The coating composition is selected from the group comprising water insoluble polymers, ph dependent polymers or mixtures thereof. The active agent is released after rupture of the coating.
