Bismuth subsalicylate a medication that is used to treat diarrhea, heartburn, and upset stomach in adults and children 12 years of age and older. Bismuth subsalicylate is in a class of medications called antidiarrheal agents. It works by decreasing the flow of fluids and electrolytes into the bowel, reduces inflammation within the intestine, and may kill the organisms that can cause diarrhea.
Bismuth subsalicylate comes as a liquid, tablet, or chewable tablet to be taken by mouth, with or without food. Follow the directions on the package carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take bismuth subsalicylate exactly as directed. Do not take more or less of it or take it more often than recommended by the manufacturer or your doctor.
For tablets, it is advised to swallow the tablets whole and not chew them. For liquids, make sure to shake well before each use so that the medication is evenly mixed.
If your symptoms get worse or if your diarrhea lasts longer than 48 hours, stop taking this medication and call your doctor.
Drink plenty of water or other beverages to replace fluids that you may have lost while having diarrhea. Unless your doctor tells you otherwise, continue your normal diet.
Some side effects associated with bismuth subsalicylate can be serious. If you experience ringing or buzzing in your ear, stop taking this medication and call your doctor immediately.