CONTROLLED-RELEASE PHARMACEUTICAL COMPOSITION INCLUDING TAMSULOSIN OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF, AND ORAL FORMULATION INCLUDING THE SAME
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Feb 28, 2013
app pub date -
Apr 27, 2011
filing date -
May 4, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A controlled-release pharmaceutical composition including first and second groups of microparticles, each of the microparticles including a core including tamsulosin or pharmaceutically acceptable salts thereof, a controlled-release polymer coating layer formed on the core, and an enteric polymer outer layer formed on the controlled-release polymer coating layer, wherein the average thickness of the controlled-release polymer coating layer is different in each of the first and second groups of microparticles, and an oral formulation including the same, are provided. This pharmaceutical composition can easily control the extent of release of an active ingredient depending on changes in pH in the intestinal tract and the release pattern of the active ingredient in the small intestine, thus preventing the active ingredient from being rapidly transferred into the blood to thereby minimize side-effects, and maintaining the effective blood concentration of the active ingredient for a predetermined period of time. Furthermore, this composition can shield the bitter taste of the active ingredient even when exposed to the inside of the mouth, thus increasing the therapeutic effects for patients upon oral administration.
First Claim
Other Claims data not available