Bob towards the end of my career i was put on light duty and was doing security at headquarters. They had a smoking sessation program there in the evening and i helped out. It was pretty successful and what they used was wellbutrin and one of those what look like small cigarette holders that has nicotene in it that you puff on to get over the rough spots. The wellbutrin also was tapered down until you were off it. Seemed to work very well for many people. Good luck with quitting and i wish you the best.