Film preparation and process for preparing the same
AssigneeShin-Etsu Chemical Co., Ltd.
InventorNaosuke Maruyama
Life of this patent
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Abstract
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.
Claims2
1-8. (canceled)
A method for producing a film preparation, the method comprising a step of casting a mixture onto a supporting plate wherein the mixture comprises a drug, wetly shear-triturated low-substituted cellulose ether having a molar substitution of from 0.05 to 1.0 per anhydrous glucose unit, and an aqueous solution of water-soluble cellulose ether;
- and a step of drying the cast mixture.
Dependencies are inferred from the claim text.