CHANTIX (varenicline) Tablets. Pfizer, Inc. Accessed March 16, 2015 from http://labeling.pfizer.com/ShowLabeling.aspx?id=557
Varenicline. Lexi-Comp ONLINE, 2015 Lexi-Comp, Inc. Accessed March 16, 2015 from http://online.lexi.com.
Varenicline. DRUGDEX System. 2015 Truven Health Analytics Inc. Accessed March 16, 2015 from http://www.thomsonhc.com