To obtain a therapeutic agent for bronchial asthma and a therapeutic agent for allergic rhinitis, which efficiently makes an anti-inflammatory steroid target the affected part and has an excellent medicine sustained release, inhibitory effect on bronchoalveolar infiltration and inhibitory effect on airway hyperreactivity. 抗炎症性ステロイドを患部に効率的にターゲッティングし、薬物徐放性に優れ、かつ気管支肺胞浸潤抑制効果及び気道過敏性抑制効果に優れた気管支喘息治療剤及びアレルギー性鼻炎治療剤を提供すること。 - 特許庁