This discoloration is temporary and harmless. The active ingredient in Pepto-Bismol contains bismuth. When a small amount of bismuth combines with trace amounts of sulfur in your saliva and gastrointestinal tract, a black-colored substance (bismuth sulfide) is formed. It will go away on its own.
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Hello. Thank you for writing.
This discoloration is temporary and harmless. The active ingredient in Pepto-Bismol contains bismuth. When a small amount of bismuth combines with trace amounts of sulfur in your saliva and gastrointestinal tract, a black-colored substance (bismuth sulfide) is formed. It will go away on its own.
Helena
October 14, 2017 - 1:32pmThis Comment
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