[PROBLEMS] To maintain or improve the excretion of waste from a colostomy pouch, suppress the generation of excrement odor, and improve operability and portability on the premise of exhibiting the necessary characteristics as a lubricant. A feces treatment agent for colostomy is provided. A drug A comprising a granular water-soluble lubricant, a granular water-absorbing gelling agent, baking soda, and a component comprising at least one selected from the group consisting of zinc oxide, limonite and zinc sulfide. A waste treatment agent for colostomy, which is contained in a water-soluble substrate. [Selection] Figure 1【課題】潤滑剤としての必要な特性を発揮する前提で、コロストミー用パウチからの排泄物の排出性を維持または向上させ、排泄物臭の発生を抑制し、かつ、操作性および携帯性を向上しうる、コロストミー用排泄物処理剤を提供する。【解決手段】粒状水溶性潤滑剤と、粒状吸水性ゲル化剤と、重曹と、酸化亜鉛、リモナイトおよび硫化亜鉛からなる群から選択される少なくとも１種を含む成分と、を含む薬剤Ａが、水溶性基材中に包含されてなる、コロストミー用排泄物処理剤。【選択図】図１
