An inhaler operable to control a temperature of a medicament of the inhaler includes a medicament reservoir being configured to store a medicament therein. A medicament ejector is operably coupled to the medicament reservoir and is configured to eject the medicament from the reservoir to deliver the medicament to a patient. A controllable thermal source is in thermal communication with at least an inside portion of the medicament reservoir and is operable to controllably affect a temperature of the medicament. A thermal control system is in operable communication with the controllable thermal source and is configured to control the thermal source to maintain the medicament within a predetermined temperature range.