| 摘要 |
PROBLEM TO BE SOLVED: To provide a fentanyl-containing percutaneously absorbable adhesive preparation, which is obtained from economic starting materials, has a constitution simpler than that of conventional ones, has sufficient skin permeability, and which enables control of skin permeability by changing the mixing ratio of two kinds of polyisobutylene compounds having different molecular weights, a tackifier and an organic liquid. SOLUTION: The percutaneously absorbable adhesive preparation comprises a support and an adhesive layer laminated on one surface thereof, wherein the adhesive layer comprises fentanyl, two kinds of the polyisobutylene compounds having different molecular weights, the tackifier and the organic liquid compatible with the two kinds of polyisobutylene compounds and the tackifier. COPYRIGHT: (C)2006,JPO&NCIPI
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