Varenicline is used in
Varenicline is a prescription medication used to treat smoking addiction. This medication is the first approved nicotinic receptor paial agonist. Specifically, varenicline is a paial agonist of the alpha4/beta2 subtype of the nicotinic acetylcholine receptor Ref Davidson 23rd edition pg 578
Pulmonary hemosiderosis
Sleep apnea
Anti-trypsin deficiency
Nicotine dependency
Respiratory system