Polycarboxylic based cross-linked copolymers and pharmaceutical compositions comprising the co-polymer as an inert support or excipient

摘要

Cross-linked copolymers based on non cross-linked polycarboxylic polymers and a cross-linking agent comprising at least two amine functions. The copolymers comprise at least one polycarboxylic polysaccharide and at least one other non cross-linked polycarboxylic polymer which is not a polycarboxylic polysaccharide, and is preferably a polycarboxylic acrylic polymer. The cross-linking agent is chosen from diamines, natural or synthetic amino acids or polyamines. Also disclosed are pharmaceutical compositions containing the above copolymer as an inert support or excipient.