AN ORAL PHARMACEUTICAL FORMULATION COMPRISING SUSTAINED-RELEASE GRANULES CONTAINING TAMSULOSIN HYDROCHLORIDE

摘要

An oral pharmaceutical formulation containing sustained-release granules including tamsulosin hydrochloride and a method of preparing the oral pharmaceutical formulation are provided. In the oral pharmaceutical formulation, the sustained-release granules includes about 10 parts to about 300 parts by weight of polyvinyl acetate, about 5 parts to about 250 parts by weight of hydroxypropyl methylcellulose, and about 1 part to about 450 parts by weight of a diluting agent with respect to 1 part by weight of tamsulosin hydrochloride, and a weight ratio of the sustained-release granules with respect to 1 part by weight of tamsulosin hydrochloride is about 360 to 495 parts by weight.