the breath actuation assembly 100 to the locked position and movement of the container 108 will be retained by the collapsible linkage independent of the dust cover cams the inhaler 20 preferably includes a dose counter for automatically counting the remaining doses left in the container after each discharge of the medicament the inhaler may be configured with a dose counter having a number of different configurations including mechanical or electrical counters the operation of a preferred embodiment utilizing a mechanical dose counter assembly 130 will be described with respect to fig8 a to 12 e fig8 a illustrates inhaler 20 with dose counter assembly 130 configured above the container sleeve 46 the container sleeve 46 is sized to receive the non dispensing end of the container 108 the container sleeve preferably has one or more tabs 132 having a boss 136 configured to engage the teeth of first wheel 50 disposed just above the container sleeve 46 the embodiment shown in fig9 has two tabs 132 and bosses 136 however it will be appreciated that any number of tabs and bosses may be employed referring back to fig8 a first wheel 50 is a gear rotatably mounted in a horizontal orientation to top cap 54 wheel 50 has a plurality of lower teeth 140 and upper teeth 138 disposed along the outer perimeter of wheel 50 in a preferred embodiment display wheel 52 is also rotatably mounted to top cap 54 in a horizontal orientation between first wheel 50 and the top cap display wheel 52 has an opening 154 to allow clearance for column 142 of first wheel 50 that is vertically disposed to mount to top cap 54.