An inhaler comprising a housing defining a chamber to receive a strip having a plurality of blisters each containing a dose of medicament for inhalation by a user is disclosed. It comprises an inhaler comprising a housing to receive a strip having a plurality of blisters, each blister having a puncturable lid and containing a dose of medicament for inhalation by a user, a mouthpiece mounted to the housing and through which a dose of medicament is inhaled by a user, a blister piercing member mounted for rotation about a first axis and an actuating mechanism including an actuating lever mounted for rotation about a second axis to sequentially move each blister into alignment with the blister piercing member, wherein the actuating lever cooperates with the blister piercing member so that the blister piercing member pivots about said first axis in response to rotation of the actuating member from an initial position about the second axis to puncture the lid of an aligned blister so an airflow through the blister is generated to entrain the dose contained therein and carry it, via the mouthpiece, into the user's airway when a user inhales through the mouthpiece. The inhaler comprises an actuating lever load control member to control the force that must be applied to the actuating lever to cause it to rotate from its initial position such that a biasing force is applied to the actuating lever throughout all, or at least a substantial portion of, the stroke of the actuating lever.흡입기(inhaler)는 사용자가 개시함에 따라 흡입되는 약물의 복용량을 각각 포함하는 복수의 블리스터를 가지는 스트립(strip)을 수용하는 챔버(chamber)를 형성하는 하우징(housing)을 포함한다. 흡입기는 복수의 블리스터를 가지는 스트립을 수용하는 하우징； 하우징에 작착되고 약물의 복용량이 사용자에 의해 흡입되는 마우스피스； 제 1 축에 대하여 회전하도록 장착된 블리스터 피어싱 부재(blister piercing member)； 및 블리스터 피어싱 부재와 일렬로 각각의 블리스터를 이동시키도록 제 2 축에 대하여 회전할 수 있게 장착된 작동 레버(actuating lever)를 포함하는 작동 메커니즘부(actuating mechanism)；를 포함하는 흡입기를 포함하며, 각각의 블리스터는 관통가능한 리드를 가지며, 사용자에 의해 흡입되는 약물의 복용량을 포함하고, 작동 레버는 블리스터 피어싱 부재에 결합하여, 블리스터 피어싱 부재가 정렬된 블리스터의 리드를 관통하기 위해 제
