Fentanyl-containing adhesive patch for external use

Styrene-isoprene-styrene block copolymer to the support a patch for external use that the adhesive layer is laminated to base, the pressure-sensitive adhesive layer, a rosin resin and at least one other tackifier resin softening agent comprising a tackifying resin, polybutene and liquid paraffin consisting, fatty acid esters, and the adhesive patch for external use obtained by blending fentanyl, blending ratio of fentanyl of said rosin resin, 1-5 times in a weight ratio of There, and compounding percentage of the total tackifying resin amount of the rosin resin is 0.1 to 0.6 times by weight, further blending amount relative to the entire pressure-sensitive adhesive layer of the tackifier resin is 30 to 60 weight % excellent skin permeability of fentanyl, which is a high formulations stability during storage, and adhesive patch for external use which is a low irritant to the skin.