The litany of side effects associated with popular anti-smoking drug Chantix (varenicline) is extensive.  Some of those side effects, such as upset stomach, nausea, and headache, are relatively minor and might be worth enduring in order to quit smoking.  Smoking is linked to significant health issues, such as hypertension and lung cancer, and minor side effects associated with quitting are to be expected.

Continue Reading: Chantix Poses Cardiovascular Risk