How do I stop diarrhea before flying?

Your doctor may recommend medicines to help lower your chances of getting sick.
  1. Taking 2 tablets of Pepto-Bismol 4 times a day before you travel and while you are traveling can help prevent diarrhea. ...
  2. Most people do not need to take antibiotics every day to prevent diarrhea while traveling.




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Several drugs, such as loperamide, can be bought over-the-counter to treat the symptoms of diarrhea. These drugs decrease the frequency and urgency of needing to use the bathroom, and may make it easier for you to ride on a bus or airplane while waiting for an antibiotic to take effect.

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When you're stressed, neurotransmitters (chemical messengers) travel along this pathway to your gut, where they regulate the movement of water and electrolytes4. The diarrhea symptoms that you experience during stressful situations may be part of your body's fight-or-flight reaction5.

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These drugs are usually taken shortly before a flight. They include: Anti-anxiety medication, such as diazepam (Valium) or alprazolam (Xanax). Motion sickness medication, such as dimenhydrinate (Dramamine).

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Flying can absolutely make IBS symptoms worse. If gas and bloating are an issue for you, the change in cabin pressure, along with long hours in a cramped seat can hinder digestive movement, creating pressure and pain in the gut.

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