I will be starting to take Zyban tomorrow in order to quit smoking - zyban is used also as an antidepressant in some cases - I was wondering if anyone has quit smoking using Zyban and if so, did it hinder your progress. Also, I've read that smoking can slow down the progress, so I'm hoping that by quitting the habit, I will still be able to continue my weight loss - any comments will help. Thanks.