PROBLEM TO BE SOLVED: To provide a formulation which is excellent in dispersion stability, has good ingestibility, and holds the drug in the formulation sufficiently in the organ having a short passing time, such as an oral cavity or esophagus.SOLUTION: The invention provides a microgel formulation containing (A) a drug which is a tertiary metal salt, (B) organic acid, and(C) a water soluble polymer compound gelating with tertiary metal salt, the microgel formulation having microgel particles.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】分散安定性に優れ、服用性が良好で、口腔や食道のような通過時間の短い器官において、製剤中の薬物を十分に滞留させる製剤を提供する。【解決手段】(A)3価の金属塩である薬物、(B)有機酸、及び(C)3価の金属塩でゲル化する水溶性高分子化合物を含有し、ミクロゲル粒子を有するミクロゲル製剤。【選択図】なし
