Sustained release alfuzosin hydrochl formulation and method for their production

摘要

A sustained release alfuzosin hydrochloride formulation contains alfuzosin hydrochloride as about 1% to about 5% by weight of the formulation, hydrophilic polymers as about 35% to about 75% by weight of the formulation, hydrophobic polymers as about 10% to about 30% by weight of the formulation, disintegrating agents as 10% to 30% by weight of the formulation and a binder as about 2% to about 12% by weight of the formulation. The hydrophilic and hydrophobic polymers are used as the release-modulating agent to control the dissolution profile of the alfuzosin hydrochloride formulation so that the formulation releases alfuzosin hydrochloride slowly and continuously as the formulation passed through the gastrointestinal tract. The present invention also relates to a method for preparing the above formulation.