R.H.
My husband started using it in June 2007. July 4th was the last cig he had. Never got the head rush or anything, he was looking forward to that. He ended up with a rash (he blamed work as he hates his job). He stayed on it til December of 2007. He has been around smoking and has never had the "craving". He smoked for over 30 years. At the end he was smoking Swisher Sweet little cigars and was inhaling them as a cig. I would say it worked for him. Blocked whatever it was suppose to in the brain.
Try every avenue, if you really want to quit for what ever the reason, Good Luck to you!