To provide a jelly-like medicinal composition of potassium iodide which has high storage stability and good elution properties and is easy to take. A jelly-like medicinal composition, which comprises potassium iodide as an active ingredient, characterized by containing a gelling agent and a dispersion medium.本發明目的在於提供一種保存安定性及溶出性均優異、容易服藥的碘化鉀之凝膠狀醫藥組成物。本發明的凝膠狀醫藥組成物係含有碘化鉀作為有效成分,且含有膠化劑及分散媒。