Hi Antonia, It may take just a little while for the chantix to kick in to its full potential. For me, I did not think that it was really doing anything at first even taking it twice a day. I thought why refill it, I can do it on my own when its gone. I know think that it is doing it's job. I don't know If others are feeling this way, it just seems to block something in my brain where I can think about cigarettes, see others smoking them even, but can not imagine me smoking one. No desire whatsoever? I think I will stick with it for a while.