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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Black coating on tongue, had taken pepto bismol for diarrhea, history of acid reflux. Help?

I woke up this morning with a black coating on my tongue . I had diarrhea the night before and took pepto bismol to help relieve the diarrhea. I have acid reflux and at one time I had ulcers on the back of my tongue which caused a small amount of brown when scraping my tongue, but nothing like this dark coating that covers my entire tongue that I am scraping dark substance from the back of my tongue.
Thu, 11 Apr 2019
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Internal Medicine Specialist 's  Response
Hello,

This is probably cause of Bismol you took the other day, anyway it will clear up after a few days, no need to panic.

Hope I have answered your query. Let me know if I can assist you further.

Take care

Regards,
Dr Salah Saad Shoman, Internal Medicine Specialist
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