An inhaler for inhaling powdered medicament from capsules is described. Once the capsule has been placed in the capsule holder (3), the patient can press an actuating member (8), which interacts with at least one pin (9) adapted to be pushed into the capsule holder (3), causing the medicament to be released. In a preferred embodiment, the actuating member (8) is constructed as a multi-functional actuating member (8a) wherein, in a first functional position, the closure element (6) can be disengaged from the lower part (1) in order to pivot the cover (5), and wherein, in a second functional position, the mouthpiece (4) engaging with the plate (2) can be released from the plate (2) in such a way that the mouthpiece (4) can be pivoted away from the lower part (1).