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A female asked:

Hi, i've been taking famotidine for about 2 weeks and am having white/ very light gray stools. should i be concerned, or is this a side effect of pill?

1 doctor answer2 doctors weighed in
Dr. Sewa Legha
Medical Oncology 51 years experience
Nothing of concern: Famotidine is a safe drug with little or no side effects. You should not get too concerned about the color of your stools.
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Dr. Andrew Seibert
Gastroenterology 36 years experience
Although white stools can sometimes be a sign of bile duct obstruction. Might want to consider a liver profile if they remain pale.
Jun 12, 2017
Last updated Sep 3, 2018

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