MULTIPLE DOSE DISPENSER FOR POWDER INHALATORS AND CORRESPONDING METHOD OF DISPENSATION

摘要

A dispenser for a pulverous pharmaceutical composition for use with powder inhalators comprises a sealed housing (1) and a compartment (2) in the housing (1) for storing the composition. The storage compartment (2) further comprises an opening (5), a dispensing element (9) disposed in the storage compartment (2) and extending through the opening (5), an element (7) with a channel joined to the opening (5) externally of the compartment (2), and means for step-wise displacement of the dispensing element (9). The dispensing element (9) can be displaced towards the opening (9) and comprises sealing portions (14,14') of a diameter corresponding to the inner diameter of the channel spaced by dispensing portions (15) of substantially reduced diameter each of which holds a single dose of the composition.