A coated solid preparation includes an active ingredient including valproic acid or a pharmacologically acceptable salt thereof, and a coating layer containing polyvinyl alcohol and swelling clay coating the active ingredient wherein mass ratio of the polyvinyl alcohol to the swelling clay is 8:2 to 3:7 and the swelling clay is dispersed as a laminated structure.
申请公布号
US8652521(B2)
申请公布日期
2014.02.18
申请号
US201013201546
申请日期
2010.03.03
申请人
HAYASHI YUKI;YOSHII RYOJI;HORIUCHI YASUHIDE;TORAY INDUSTRIES, INC.