I was just diagnosed with diabetes. Last week my doctor prescribed metformin to me. I take one 500mg pill two times a day. I have been having diarrhea about 2 hours after each dose. Is this normal and will it go away? I, also, take lisinopril for blood pressure and a baby aspirin for heart protection.
25 Feb 2013
The most common side-effects of Metformin are feeling sick, diarrhea and abdominal pain. These symptoms do not usually last long.
If the side effects do not settle or become bothersome talk with your doctor.
Your dose may need to be reduced to allow your body to adjust.
Your doctor may consider switching you to an slow-release medication which may reduce diarrhea, because smaller amounts are absorbed over the day rather than hitting your system all at once.
Make sure you take metformin just after a meal or with a snack.
7 Jul 2013
Yes it will stop, in one to two weeks after taking them. Your body has to adjust to ur mets. I did the same, metformins have different side affects, and thats the one ur body chose, as well as mines. It will stop, but when ever u go periods of time without taking ur meds u will go through the side affects each time u start them over.
28 Jan 2015
I've taken Metformin for years and have battled diarrhea for years from it. What works best for me is Metamucil. I take 4 teaspoons a day. Something about the added fiber stops the diarrhea, for me anyway. Start out slowly (1 teaspoon a day) and build up. Too much fiber too quickly can cause stomach / abdominal pain.
Always take the Metformin right after a meal. A meal, not a snack. 50 -100 calories + a Metformin = diarrhea.
7 Jun 2015
I have run an A1C between 5-8 for several years and I have taken metformin on and off over the years. Yes, I have the gastro problems that it seems is common everytime I go on it. My doctor switched me to the extended release which did seem to help a little but not completely. I eat yogart which I'm sure helps, but I recently tried a high potency Probiotic which I take once a day. Right from the first day all the symtoms of diarrhea have stopped. It's only been a week so far but I'm really hopeful that this will allow me to tolorate the medication
16 Jun 2015
I've battled the diarrhea issue now for 2 years. Have begged my doctor to take me off it, he refuses. I've tired everything, Pepto, yogurt, taking with a meal, nothing works. The dosage has been lowered 3 times, doesn't help. I ended up in the emergency room with severe diarrhea, sick as could be. I, too, have become house bound, can't go for food or medicine and live alone. What's my alternative?
28 Jul 2015
Currently I have not gone back on metformin with Dr ok and also have NOT had another episode of diarrhea since 12 hrs going off it. Right now I'm on Glyberide and Victoza with my glucose level running 88-128 most of the time but just without the metformin.
The last couple days I developed developed severe back pain on left side, potentially kidney problems which I never had before and have Dr. appointment tomorrow for testing. BEWARE of issues with Victoza as there are several attorneys filing laws suites due to alleged claims that Victoza causes kidney failure not to mention the more common back pain. Just search the internet you'll find the information. It seemed that the FDA wanted more testing over the potential problems but it was rushed to market with a $20B dollars sales potential.to diabetics. It appears my body tolerated these foreign chemicals for several years before finally reacting to the toxicity.
18 Aug 2015
I take two 500mg tabs of Metformin twice a day for the last five years and have had experience with abdominal pain and diarrhea. I have learned that if i take these meds with meals I can avoid this problem most days. When I say with meals I do not mean just before or just after a meal. I mean eat half, take the pills, then finish the meal. This works well for me and I rarely have problems unless I break my routine. If I go out to eat I always take my medicine with me and make sure to take it during the meal.
26 Aug 2015
I have been on metformin for many years, and had gastrointestinal problems almost constantly until I stumbled upon something that works for me 85% of the time. If I eat any Kashi cereal or Quaker 100% Natural Ganola for breakfast, I am likely to be OK. I can occassionally eat something else for one day, but have to go back on the cereal the next or I'm in trouble. I don't know why it works - fiber, protein, ?? but there are other high fiber or high protein cereals that don't work as well.
22 Dec 2015
I take metformin 1000 twice a day for what we are calling metabolic syndrome. I have such bad diarrhea on it that I have to take imodium with it twice a day. That keeps my bowl movements pretty normal. My doctor said there are no long term effects of taking imodium so I highly recommend it to you fellow sufferers.
10 Jan 2016
A very low carb diet of mostly protein and vegetables with a small amount of fruit (a serving per day) and occasionally some nuts works for me. I take 2000 mg per day in divided doses with breakfast and dinner. I also take Bio-Kult probiotic caps twice a day. One thing I have noticed is that the more starchy food I eat the worse the diarrhea is. If I avoid all starchy foods (no potatoes, grains, sugars) I have the best control. Doesn't completely eliminate the diarrhea but it is much less frequent and often I go for days with normal bowel movements on this regimen.
- Metformin Information for Consumers
- Metformin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Metformin (detailed)
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