I was taking champix a bout 4 months ago, had gas and bad cramps, diarrhea and blood and mucus in my stool. I stopped the drug and still have the issues. I used to have chronic constipation, now I have regular movements, sometimes normal often with blod and mucus. I also get the urge to go and only pass a small amount of mucus sometimes with bood. I seen my doctor, provided some stoll samples that came back alright and never heard back from doctor. I am concerned and not sure what to do from here.