Pregnancy and champix

Patient: I’m 14 weeks pregnant and I’ve tried everything to quit smoking and I really want to try champix is it safe enough to use now?

Doctor: Hi,Thanks for the query.I understand your concern.Champix tablets contain varenicline. Which belongs to category C drugs in pregnancy, means animal studies have shown few adverse effects on fetus whereas sufficient human studies are lacking.So, safety of Champix in pregnancy is not yet proved .Before starting Champix tablets,please talk to your doctor once and proceed according to her advice.Take care.