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
15 days ago
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?
- Metformin Information for Consumers
- Metformin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Metformin (detailed)
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