Patch for local administration of drugs in the oral cavity includes a drug-containing matrix comprising a water-insoluble cellulose ether and a water-soluble cellulose ether in a defined ratio

摘要

Patch for local administration of drugs in the oral cavity comprises: (a) an adhesive layer; and (b) a drug-containing matrix comprising a water-insoluble cellulose ether (I) and a water-soluble cellulose ether (II) in a ratio of 1:1 or 2:3.