The invention relates to an inhaler for powdered drugs intended for patient to receive through an inhaled air stream containing at least one powder container, measuring means for repeatedly measuring the dose of powder from said container, a transition mechanism for moving said measuring device from the filling position for receiving a dose of powder in the empty position for the release of said dose of powder into the powder channel, at least one activating device an action for manual actuation by a patient, said activating device being operatively connected with said transition mechanism such that when actuating a single dose of powder is measured, said activating device having a dispensing button (5) that, when pressed by a patient, has an effect on said transition mechanism . Said inhaler further comprises a promotion mechanism for advancing the counting means whenever the inhaler is actuated by the patient so that a dose of powder is discharged into the powder channel. Said counting means comprises a mechanical indicator connected to a locking mechanism blocking said metering button (5) and / or said activating device and / or said transition mechanism after a predetermined number of measuring cycles after the detection of said indicator. In addition, said locking mechanism includes a locking lever (7) for forcing with said metering button (5) and / or said activating device,Изобретение относится к ингалятору для порошкообразных лекарственных средств, предназначенных для приема пациентом посредством воздушного потока, вызываемого вдыханием, содержащему по меньшей мере одну емкость для порошка, мерное средство для многократного отмеривания дозы порошка из упомянутой емкости, механизм перехода для перемещения упомянутого мерного средства из положения заполнения для приема дозы порошка в положение опорожнения для выпуска упомянутой дозы порошка в канал для порошка, по меньшей мере одно активирующее устройство для ручного приведения в действие пациентом, причем упо
