The styrene isoprene styrene block copolymer is 5 to 40 mass%, the polymer polyisobutylene is 1 to 25 mass%, the low molecular polyisobutylene is 0.5 to 24 mass%, the sticking agent is 3 to 50 mass%, the plasticizer is 20 to 70 mass%, the dispersing agent is 0.01 to 7% by mass, and the carboxyl is 0.01 to 7% by mass It contains 0.1 to 8 mass% of anti-inflammatory drugs with a base or salt, and contains no l-menthol, and the drug release rate after an hour from the start of water release test by a rotating cylinder described in the US pharmacophore release test method is 20 to 64 mass% and after 3 hours An anti inflammatory agent containing a drug release rate of 40 to 93% by weight.スチレン-イソプレン-スチレンブロック共重合体を5~40質量%、高分子ポリイソブチレンを1~25質量%、低分子ポリイソブチレンを0.5~24質量%、粘着付与剤を3~50質量%、可塑剤を20~70質量%、分散剤を0.01~7質量%、およびカルボキシル基またはその塩を有する抗炎症剤を0.1~8質量%含有し、かつL-メントールを含有しておらず、米国薬局方放出試験法記載の回転シリンダーによる水放出試験の開始から1時間後の薬物放出率が20~64質量%であり、かつ、3時間後の薬物放出率が40~93質量%であることを特徴とする抗炎症剤含有貼付剤。