Patent ID: 9555002
Date: 2017-01-31
CPC Classifications: A61K,C08F

Claim:
1. A dosage form comprising preparations of slightly water-soluble active substances in a polymer matrix comprising a polyether copolymer and at least one slightly water-soluble polymer, the polyether copolymer being obtained by free radical polymerization of a mixture of from 30 to 80% by weight of N-vinyllactam, from 10 to 50% by weight of vinyl acetate and from 10 to 50% by weight of a polyether, wherein the slightly water-soluble polymers are based on ethyl acrylate and methyl methacrylate, wherein the slightly water-soluble active substance is present in amorphous form in the polymer matrix, and wherein the preparations remain amorphous after storage for 6 months at 30° C./70% relative humidity.