A metered dose inhaler having a body for receiving a medicinal canister. A lower mouthpiece end is in communication with an output valve of the canister for issuing an atomized medicinal spray. A plurality of apertures are defined along any of the sides or front and back walls of the body and above the output valve such that, upon depressing a trigger associated with the canister in combination with patient inhalation, airflows are generated which assist patient inhalation resulting in more efficient delivery of the spray and to better direct the spray into the patient's respiratory system. A further variant incorporates a motorized cap, such as for use by handicapped individuals who may be unable to actuate the metered dose inhaler due to anatomical or physiological disabilities.
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