USAGE OF COPOLYMER FOR PRODUCTION OF SOLID ORAL MEDICINE AND COSMETIC AND SOLID ORAL DISPENSED MEDICINE AND DISPENSED COSMETIC

摘要

PROBLEM TO BE SOLVED: To obtain the subject medicine and cosmetic having a sustained releasability by using a cololymer comprising N-vinylpyrrolidone and vinyl acetate in a specific ratio and having a specific range of K-value. SOLUTION: A copolymer comprising (A) 15-50 wt.%, preferably 20-40 wt.%, particularly preferably 25-35 wt.% N-vinylpyrrolidone, (B) 85-50 wt.%, preferably 80-60 wt.%, particularly preferably 75-65 wt.% vinyl acetate and preferably (C) 0-30 wt.% other radical-copolymerizable monomers (e.g. monoethylene-based unsaturated carboxylic acids such as acrylic acid, methacrylic acid, etc.), and having 50-200 K-value is used as a matrix for production of a solid oral medicine and cosmetic.