Patent ID: 6210710
Filing Date: 2001-04-03
Classification: A61K,Y10S

Abstract:
A pharmaceutical composition comprising a blend of at least first and second components, where the first component is selected from the group consisting of derivatives of HPC, EC, and hydroxyethylcellulose (HEC) where the derivative is an anionic, cationic, or nonionic modification and the second component is at least one other polymer selected from the group consisting of carboxymethylcellulose (CMC), hydroxyethylcellulose (HEC), methylcellulose (MC), ethylhydroxyethylcellulose (EHEC), hydroxyethylmethylcellulose (HEMC), hydrophobically modified hydroxyethylcellulose (HMHEC), hydrophobically modified ethylhydroxyethylcellulose (HMEHEC), carboxymethylhydroxyethylcellulose (CMHEC), carboxymethyl hydrophobically modified hydroxyethylcellulose (CMHMHEC), guar, pectin, carrageenan, xanthan gum, locust bean gum, agar, algin, gellan gum, acacia, starch and modified starches, mono- and co-polymers of carboxyvinyl monomers, mono- and co-polymers of acrylate or methacrylate monomers, mono- and co-polymers of oxyethylene and oxypropylene and mixtures thereof and a medicament in a sufficient amount to be therapeutic.