Are there side-effects from Chantix (Varenicline)?
Nausea is common, occurring in up to 30% of people. It does not suppress the weight gain associated with stopping smoking, and changes in emotional state (including agitation and severe depression) have been reported. Since Chantix blocks the nicotine receptors in the brain, the Rescue Nicotine Medications, such as gum, lozenge, and nasal spray, may not effectively relieve nicotine withdrawal symptoms that occur while using Chantix.
