perscription pills to quit smoking

Have you tried the new pill "varenicline" to quit, does it work? Are there any side effects?

I am considering seriously stop smoking and several people have mentioned the new perscription drug that will help. I was wondering what side effects there, this is expensive, and how might be working for other people.

I took it for a month, had quit smoking for 3 weeks and have not smoked since the 10 months … now! No side effects, but I've heard from some people who have nausea as a side effect. I definitely recommend it to anyone trying to quit!