An inhalant dispensing system is provided, comprising an inhalant delivery apparatus having a main body, a lower body coupled to the main body and comprising a mouthpiece, and an inhalant delivery mechanism disposed within the main body and configured to deliver an aerosolized solution to the mouthpiece for user inhalation; and a lock out system configured to selectively prevent delivery of the aerosolized solution to the mouthpiece. The inhalant delivery apparatus may be assembled by inserting a portion of the inhalant delivery mechanism into the main body. The lower body may be rotatably coupled to the main body and moveable between a dispensing position and a storage position. The system may be used to control and monitor dosages of a solution contained within a smart canister and administered from the canister via an inhaler, to prevent accidental or unwanted usage of the canister and/or over-dosing.