My mother used Chantix and she stopped smoking after 2 weeks although she continued to take the meds for 2 months to make sure she was off of them. It works really fast. She had no desire to smoke after 1 week but she would try anyways and during her 2nd week she could only take 2 drags at a time. she couldn't even finish one cig in one day. She has been doing very well for 6 months so far. Talk to your doc about a prescription. Good luck.