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Chantix and Upset Stomach: What Users Say (Page 2)

Reviews for Chantix

Commonly mentioned side effects
  • CWD...
  • August 5, 2009

For Smoking Cessation "I'm on day 10, and the 1 mg pills do upset my stomach, some days worse than others. I sleep okay, but am upbeat after I take the pills. I've been coming home to take a nap, which I never did before. I'm down from a pack a day to 6. I had a cigarette 13 hours after my last one today. Broke out in a sweat. Didn't enjoy the smoke. Here's hoping I can beat this sooner rather than later. Mornings are my downfall, but I'm taking this one day at a time."

8 / 10
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  • Anonymous
  • November 2, 2009

For Smoking Cessation "I am on my 9th day of Chantix, which is up to the 1 mg pills twice a day now. The first week taking Chantix, I smoked 3 cigarettes to 'finish off the pack,' and hated every single puff. I actually ended up putting the cigarettes out after 2-3 puffs. The smell was disgusting, and the taste was awful. I still have cravings to smoke but know that it won't do me any good to buy another pack. Waste of money because I won't smoke them. However, the side effects are EXTREMELY intense for me. I have had EXTREME ANGER outbursts, and very severe depression. My stomach hurts after taking the pill, and I just want to roll up in a ball. I think I could quit taking the pill now and be smoke-free to lessen the psychotic episodes, but I'm really not sure."

6 / 10
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  • Anonymous
  • October 17, 2009

For Smoking Cessation "I smoked for 10 years and did not ever think I could quit. Chantix worked! Take it with food because it made my stomach a little upset, but it was worth it. No suicidal thoughts...but I did have awesome dreams, which I miss."

10 / 10
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Frequently asked questions

  • jan...
  • September 18, 2007

For Smoking Cessation "I have smoked for 20 plus years. I've been on Chantix for one month now. In the beginning of taking this pill, I would feel almost like I had the flu, and lost a couple pounds the first few days, and I also did smoke about 3 cigarettes a day. I have experienced severe stomach aches, and severe lower back aches, nausea, depression, and weight gain. I am now breaking out in hives and started to take one pill a day. I will call my doctor about these side effects."

4 / 10
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  • Alo...
  • June 24, 2011

For Smoking Cessation "This is an amazing product. I took it for about 10 days before I quit. I can't believe that I am not experiencing the anxiety and cravings that I have had when trying to quit cold turkey. I still get the urge for, say, my cigarette with my first cup of coffee, but I just put it out of my mind and go on. I take it after eating a good-sized breakfast and make sure I drink plenty of water with it, at least 1 cup. I have had no nausea or stomach problems. I was originally concerned about the dreams, thinking I was going to wake up horrified with realistic nightmares. Instead, I am kind of enjoying the dreams. Everything is in vivid color, typical of dreams, they don't always make sense, but they are entertaining."

10 / 10
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  • Wil...
  • Taken for less than 1 month
  • February 27, 2019

For Smoking Cessation "I have smoked for more than 45 years and began taking Chantix on 2/14/2019. Today is 2/27/2019, and I will never take this medication again. I don't think I have ever been sicker to my stomach. There is nothing I can take or do to stop the severe stomach aches. It feels like someone punching my gut with their fist. This is the second time I have tried Chantix, and the last."

1 / 10
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  • smo...
  • August 25, 2011

For Smoking Cessation "This medication is the best thing since sliced bread. I have tried countless times and about all available methods to quit smoking. After 14 years of a pack a day of Marlboro Reds, I decided to try Chantix! Two weeks in, I was a nonsmoker! I had only very minor side effects, such as slightly more vivid dreams and a stomach ache if I forgot to eat prior to taking it. You have to want to stop for this to work, it makes the cravings for a smoke so much more manageable and few and far between. Remember to let family or friends know if you start taking this so they can watch for signs of problems like depression, as there is a chance that Chantix can have negative effects on mental health in some patients."

9 / 10
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  • Ste...
  • February 10, 2015

For Smoking Cessation "Chantix really works! I am 24 years old and have been smoking since I was 14, so 10 years. I tried gum, patch, and cold turkey, nothing worked. Went to my doctor because I knew I needed Chantix. The first week was okay, had a couple of weird and vivid dreams, but nothing I couldn't handle. After the fifth day or so, I was down to like a couple of cigarettes a day (I used to smoke almost a pack a day). I am now in my second week and am officially not smoking at all. I am having some side effects, though. I have bad headaches all throughout the day, my stomach is upset, and I got constipated. It's kind of like the feeling of being hungover. But it is all worth it in the end, I believe. I would rather have a couple of headaches than continue to be a smoker."

10 / 10
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  • tac...
  • February 16, 2011

For Smoking Cessation "I just reached day 28. I have insomnia and the occasional stomach ache. I do have the occasional 'vivid dream,' but not too much out of the ordinary. I was a pack-a-day smoker for about 10 years. Since the end of week one, I have had maybe 4 cigarettes. By day seven, I was down to 4 a day. This worked great for me, and I plan on taking it till month three, then I'm going to go it on my own."

10 / 10
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  • Jon...
  • December 6, 2011

For Smoking Cessation "I am 27 years old, a dedicated smoker since age 17, and recently quit with the aid of Chantix. During my first week, I suffered a lot of anxiousness and stomach problems, but after persisting with the recommended dose, my body caught on. I continued to smoke through my first month taking Chantix, during which the feeling of 'needing' a cigarette became less and less frequent. I had very lucid and bad dreams during this month. After smoking a pack and a half on the 23rd of November, I decided that I was done, so the next morning I didn't smoke anymore, and I have not smoked since. Since I quit smoking, the bad dreams have given way to very lucid good dreams. I still experience a little stress from time to time, but that's normal stress. Thanks, Chantix."

9 / 10
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  • tza...
  • February 26, 2009

"I started taking Chantix some time after Christmas. I didn't want to quit, I was one of those smokers who enjoyed it. I've been a smoker for 19 years. After about 2 weeks, I cut back to about 7 a day, but on January 26, I quit. I was doing really well, and then I got this horrible cold and relapsed. I'm still taking Chantix, but I wasn't taking it as prescribed. I plan to now take it 2 times a day instead of once. I'll keep taking it only because I'm scared I'll go back to smoking. I've read all of these horrible side effects and got scared, so I stopped taking them, and then the urge to smoke came back. I've had mild side effects like an upset stomach and vivid dreams. I'm determined to be a non-SMOKER."

8 / 10
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  • Anonymous
  • November 5, 2014

For Smoking Cessation "Awesome. No side effects at all. A little stomach ache for 5 minutes after taking the pill, but it goes away fast. Been smoke-free for 3 months. Feel great."

10 / 10
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  • cdb...
  • February 7, 2008

For Smoking Cessation "I have taken Chantix for about 2.5 months. Although I am smoke-free, I must say the upset stomach, nausea, wild dreams, lack of energy, constipation, and depression may not be worth it."

5 / 10
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  • Joj...
  • July 24, 2007

For Smoking Cessation "I was taking Chantix. I found that I could not drink milk or have very many milk products. I have now restarted Chantix and no milk, and I do not have the nausea or stomach cramps I had before."

8 / 10
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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.