an object is to provide a film preparation comprising a polymer harmless to living bodies and being highly adhesive to the skin ; and a film preparation further containing a pharmaceutically active oily ingredient and being highly adhesive to the skin . more specifically , provided is a film preparation comprising a drug , a wetly shear - triturated low - substituted cellulose ether having a molar substitution of from 0 . 05 to 1 . 0 per anhydrous glucose unit , and a water - soluble cellulose ether , and having 100 minutes or greater of adhesion ability to the skin . the preparation becomes a skin - adhesive hydrous sheet having excellent skin adhesion after it is wet with water as it is used .