Varenicline

Category: pharmacological

Aliases: Chantix

Pharmacological Mechanism

Partial agonist at α4β2 nicotinic ACh receptor — reduces cigarette craving + withdrawal while blocking the reinforcing effect of smoked nicotine. Most efficacious smoking-cessation agent in head-to-head trials. Neuropsychiatric concerns (FDA black-box removed 2016 after EAGLES trial).

Half-Life (t½)

PO: 24h

Dosing Guidelines

Target Organ Systems