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Is Black Tarry Stool Normal After Taking Metformin 1000?
Hi, I am newly diagnosed with diabetes and I am taking metformin 1000 at tea time, Is it normal to have black tarry stools? I ve had to go 6 times so far this morning already, I ve been taking this medication for 3 weeks now and this is the first time my stools have looked like this....
Tue, 9 Aug 2016
Yes black tarry stool may be due metformin. It has been reported but its incidence is not known. Also change in color of urine may occur after taking metformin. It is harmless. There are other causes of black tarry stools which need to be excluded.
Advice
1. Continue metformin as suggested
2. Investigation – routine examination of stool, stool for occult blood, blood Hb%
Thanks
Advice
1. Continue metformin as suggested
2. Investigation – routine examination of stool, stool for occult blood, blood Hb%
Thanks
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