Many cases of traveler's diarrhea can be prevented. Keep the following rules in mind, even in expensive resorts and hotels:
You can decrease your chance of getting diarrhea by taking two tablets of bismuth subsalicylate (Pepto-Bismol) four times a day, although you shouldn't do this for more than three weeks.
Common side effects of bismuth subsalicylate include black stools and a temporary black discoloration of your tongue. If you develop ringing in the ears, stop taking the medication because you may be developing salicylate toxicity. Aspirin and bismuth subsalicylate contain the same active ingredient, so don't use aspirin while you take bismuth subsalicylate. If you are allergic to aspirin are pregnant, or have a history of kidney disease, ulcers or other bleeding disorders, consult your doctor before taking bismuth subsalicylate.
Do not take antibiotics to prevent diarrhea unless your doctor tells you to. Antibiotics can have side effects, including sensitivity to sun, allergic reactions and vaginal yeast infections. Antibiotic treatment may be prescribed for people with certain medical conditions. For them, a bout of diarrhea could be dangerous.
Some experts recommend the use of an antibiotic called rifaximin (Xifaxan) to prevent the development of traveler's diarrhea, as it is not absorbed from the intestine, so it is unlikely to cause side effects.
If you are taking an international cruise, the food and beverages aboard the ship are usually safe. All cruise ships are inspected regularly for compliance with sanitation guidelines. These inspection reports are available for each ship on the CDC website or through your travel agent.
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