Selectable Single Dose Auto Injector And Methods Of Making And Using Same

An auto injector device for administering a liquid pharmaceutical composition in which an end user can select between doses that the device is capable of delivering. The end user choices that translate into the selected doses can be based on end user perceived severity of symptoms end user weight and other such factors. In some embodiments the auto injector is configured to administer the one chosen dose only. In other embodiments the auto injector can deliver second and subsequent doses up to full dose of the pharmaceutical composition disposed in the injector. The auto injector can provide visual audio and tactile feedback alone or in combination to the user to indicate the dose selected instructions for use and when the dose has been administered.