The present document describes a dosage form for delivery of an active ingredient comprising: a first carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation; alone or in a co-complex with at least one of a) a control release polymer chosen from an insoluble polymer or a polymer having a reduced water solubility at 30°C, and a soluble polymer; and b) a second carboxylated polymer having carboxyl groups complexed with a divalent cation. The document also describes processes of making a carboxylated polymer having carboxyl groups, having a degree of substitution of at least 0.2, a molecular weight of at least 200 kDa, and at least 30% of said carboxyl groups being complexed with a divalent cation, and an inclusion complex, a co-complex, or both comprising the same.
本文件描述了一种用于传递活性成分的剂型,包括:第一种羧化聚合物,具有羧基,取代度至少为0.2,分子量至少为200kDa,至少30%的羧基与二价阳离子形成络合物;单独使用或与至少以下之一的共络合物一起使用:a)控制释放聚合物,选择自不溶性聚合物或在30°C下具有降低
水溶性的聚合物,以及可溶性聚合物;和b)第二种羧化聚合物,其羧基与二价阳离子形成络合物。该文件还描述了制备具有羧基的羧化聚合物、取代度至少为0.2、分子量至少为200kDa、至少30%的羧基与二价阳离子形成络合物的过程,以及包含相同的包含复合物、共络合物或两者的过程。