Chemistry Keeps Us Healthy


Bismuth Subsalicylate

 
Scanning Electron Microscope image of Bismuth subsalicylate

 Chemical Formula:

C7H5BiO4

Stucture of Bismuth subsalicylate


 
 
 
Bismuth subsalicylate is is used to treat diarrhea.  It is also used to relieve the symptoms of an upset stomach, such as heartburn, indigestion, and nausea..  It is the active ingredient in Pepto Bismol. Doses are taken orally in the following forms: oral suspension, tablets, and chewable tablets. The following people should consult their doctor before taking Pepto Bismol: Pregnant or nursing women, older adults, young children and those with allergies to salicylates. People taking Pepto Bismol sometimes report that thier stool turns black after taking the product. This is a result of the bismuth in Pepto Bismol. 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. This discoloration is temporary and harmless. It can last several days after you stop taking Pepto-Bismol. Individual bowel habits, your age (the intestinal tract slows down with age), and the amount of the product taken all help to determine how long Pepto-Bismol is in your system

 
 
 
 
Bottle of Bismuth Subsalicylate (Pepto Bismol)

 
 
 
 
References:
http://www1.va.gov/visn10/CincyMedSheets/BismuthSubsalicylate.htm
http://www.pepto-bismol.com/
http://www.drugs.com/cons/Pepto_Bismol.html255
http://www.pdrhealth.com/drug_info/otcdrugprofiles/drugs/fgotc185.shtml
http://www.drugdigest.org/DD/DVH/Uses/0,3915,6045%7CPepto%252DBismol,00.html 

 
 
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Page prepared by:

Mark Bellamy