A composition prepared by containing or blending a physiologically active non-peptide substance and a biodegradable polymer having two or more carboxylic groups at its end or a salt thereof features: (1) larger content of the physiologically active non-peptide substance can be contained, as well as release of the same can be controlled or accelerated, whereby secure pharmaceutical effect is achieved; (2) when the physiologically active non-peptide substance causes subcutaneous stimulation, an activity of canceling the stimulation by strongly acidic group at its end is expected; and (3) high glass transition point and high stability.
通过含有或混合生理活性非肽物质和具有两个或两个以上羧基末端的可
生物降解聚合物或其盐制备的组合物具有以下特点:(1)可以含有更多生理活性非肽物质,并且可以控制或加速其释放,从而实现安全的药效;(2)当生理活性非肽物质引起皮下刺激时,预计具有在其末端具有强酸性基团的活性来取消刺激;以及(3)高
玻璃转变温度和高稳定性。