Varenicline
"ONE DAY OR DAY ONE: you decide. Yesterday I decided to get Chantix rx from doctor and started the pills. ONLY eleven years smoking, I'm not even thirty and feel like shiz, I can't imagine how horrible I'll feel in 11 more--if I'm still alive. Smoked the last cig in my pack a while ago, official quit day is Feb 13th--one month after my smoking co-worker (over 20 years, pack+/day) quit cold turkey. This is my Day One."