Pharmaceutical polymer composition for oral controlled-release delivery of terbutaline sulfate

摘要

The present invention is directed to a controlled-release pharmaceutical composition providing a sustained delivery of the basic drug Terbutaline sulfate, said composition comprising at least Terbutaline sulfate or a derivative thereof as an active agent, and further comprising an inactive matrix, said matrix comprising a hydrophilic polysaccharide polymer mixture, said mixture comprising chitosan or a derivative thereof, and further comprising xanthan gum or a derivative thereof, wherein the ratio of xanthan gum and chitosan within said mixture is in the range from about 1:10 to about 10:1, and said composition optionally comprising sodium bicarbonate.