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Use of a polymer mixture for the preparation of pharmaceutical formulations and coated polymer mixture coating pharmaceutical formulations
Use of a polymer mixture for the preparation of pharmaceutical formulations and coated polymer mixture coating pharmaceutical formulations
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机译:聚合物混合物在制备药物制剂和包衣的聚合物混合物包衣药物制剂中的用途
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摘要
The invention relates to the use of mixture of 2 to 60 wt. % of one or more polymers (I) with 40 to 98 wt. % of one or more polymers (II), whereby the polymer (I) is a (meth)acrylate copolymer, containing 90 to 100 wt. % radically polymerised of 40 to 95 wt. % of CSUB1 /SUBto CSUB4 /SUBalkyl esters of acrylic or methacrylic acid and 5 to 60 wt. % of units of (meth)acrylate monomers with an anionic group with 0 to 10 wt. % of further vinylic polymerisable monomers and polymer(ll) is a vinyl polymer different from polymer (I) or a polysaccharide or a derivative of a polysaccharide, containing 88 to 100 % neutral monomer units and up to 12 wt. % polymerisable monomer units with ionic groups, for production of a coated pharmaceutical formulation, containing an active agent core and a polymeric coating made from the mixture of polymers (I) and (II), characterised in that the glass temperature of polymer (I) is not more than 70° C. and an active agent release profile is achieved, whereby the agent release is delayed with relation to a pharmaceutical formulation with a coating made exclusively of polymer (I), starting with the same pH. The invention further relates to a pharmaceutical formulation with a selected polymer (I).
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