What are the potential side effects of varenicline (Chantix®)?

In our overview of the management of tobacco use disorder, we noted that we should strongly consider using varenicline (Chantix®) as one of the interventions. Varenicline (Chantix®) may be the most effective single intervention for tobacco cessation—more effective than a nicotine patch and more effective than bupropion. For practical details that we need to know…