PROBLEM TO BE SOLVED: To allow a user to acquire a residual quantity, the number of administration times, or the residual number of the administration times of medicine in a medicine storage chamber.SOLUTION: This powdered medicine dispenser includes: a body part 2 having an administration medicine chamber 6 storing a prescribed amount of the medicine at a time a movable body 3 having the medicine storage chamber 22 for storing the medicine and a medicine emission passage 13 for emitting the medicine to be administered and relatively reciprocatably connected to the body part 2, wherein the movable body 3 is changed over between a medicine filling position for communicating the medicine storage chamber 22 to the emission medicine chamber 6 and a medicine administration position for communicating the medicine emission passage 13 to the emission medicine chamber 6 an air feed mechanism 4 for pressure-feeding air inside the medicine emission passage 13 a ringed counter 14 rotationally held in the body part 2 and described with a display indicating the residual number of the administration times of the medicine and a turning mechanism rotationally turning the counter 14 stepwise in the feed direction when the movable body 3 is reciprocatingly turned so as to allow the user to visually recognize the change in the display of the turning counter 14.COPYRIGHT: (C)2009,JPO&INPIT【課題】薬剤貯留室内の薬剤の残量又は薬剤の投与回数又は薬剤の投与回数の残数等を知ることができるようにする。【解決手段】粉末薬剤投与器において、1回に投与する量の薬剤が貯留される投与薬剤室6を有する本体部2と、薬剤が貯留される薬剤貯留室22と投与される薬剤が噴出する薬剤噴出通路13とを有して本体部2に相対的に往復回動可能に連結され、薬剤貯留室22が投与薬剤室6に連通する薬剤充填位置と薬剤噴出通路13が投与薬剤室6に連通する薬剤投与位置とに切替可能な可動体3と、薬剤噴出通路13内に空気を圧送する空気供給機構4と、本体部2に回動可能に保持され、薬剤の投与回数の残数等を示す表示が記されたリング状のカウンタ14と、可動体3の往復回動動作に伴ってカウンタ14を送り方向にステップ状に回動させる回動機構と、を備え、回動するカウンタ14の表示の変動を視認できるようにした。【選択図】 図3