Abstract: Methods and apparatuses for the therapeutic delivery of nicotine for smoking cessation, harm reduction and/or substitution. Furthermore, the devices and methods herein are useful as an alternative, general nicotine delivery system in place of tobacco combustion or high temperature (over 150 degrees C.) products. In addition, the methods and devices herein are useful for the therapeutic delivery of a drug, for reducing the cumulative drug dose and hence its potential toxic side effects, while increasing its neurophysiological and/or physiological effects. Moreover, the devices and methods herein are useful for addiction treatment or reduction. In certain embodiments, the methods are adaptable to a medicament delivery device that determines a sequence of drug doses to be delivered. Dose information may be used to control operation of the device.