Abstract
Rational treatment of the pharmacologic aspects of tobacco addiction includes nicotine substitution therapy. Understanding the pharmacodynamics of nicotine and its role in the addiction process provides a basis for rational therapeutic intervention. Pharmacodynamic considerations are discussed in relation to the elements of smoking cessation therapy: setting objectives, selecting appropriate medication and dosing form, selecting the optimal doses and dosage regimens, assessing therapeutic outcome, and adjusting therapy to optimize benefits and minimize risks.