Medical News & Updates

Moctezuma’s revenge: What should I do if I have diarrhea or food poisoning?

Dr. Fernando Bravo

Medical Care for Vallarta’s Community & Visitors

July 02, 2025

Next review due January 2026

Dear visitor to Vallarta, As many of you already know, this Puerto is often described as a paradise, thanks to its music, vibrant culture, warm-hearted people, and, of course, the food. OMG! The meals are delicious, and the variety is incredible.

However, many times, and because of the lower immune system against many bacteria and parasites found here (or Moctezuma’s revenge, you decide what to choose), you may present with diarrhea or, many times, even food poisoning.
When this happens, it is recommended to drink plenty of water, as well as to try Pepto-Bismol or Kaopectate.

Also, be aware that, as a recommendation, you should not take Loperamide. This is a very well-known medicine used to decrease the frequency of diarrhea and is often used for some specific diseases, including IRRITABLE BOWEL SYNDROME, INFLAMMATORY BOWEL DISEASE, and SHORT BOWEL SYNDROME. Note that it is not indicated for managing infectious diarrhea because it may cause bowel paralysis and worsen the signs and symptoms of infectious diarrhea or food poisoning.

So, if you have diarrhea, at first try to drink enough fluids, electrolytes, and some over-the-counter medicines, and avoid LOPERAMIDE and related drugs. However, if the symptoms persist, please call a physician because dehydration is a hazardous complication of diarrhea, please don’t let Moctezuma take revenge on you. In a future recommendation, I will give you some red flags to be aware of regarding dehydration, from mild to severe, that could threaten your life.

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