My mom is a heavy cigarette smoker. She is trying to quit. She says she needs to get chantix to help her quit. Is chantix a permanent fix?

Helper. It helps in about 20% of smokers to quit for one year. Good luck, additional motivation is also useful. Discuss Clonidine and bupropion with her doc also. A doc specialized in smoking cessation can make quite a difference.
No. It just helps. Chantix is not a permanent fix for a smoking addiction. It is merely a medication to help one quit, but the success rate is nowhere near 100%. The best way to quit smoking appears to be a combination of counseling, support groups, and medications such as chantix. She should discuss with her primary care physician about effective strategies for quitting.