Aeromedical factorsQuestion 743 of 934

Which medications can make a pilot more susceptible to hypoxia?

  1. Sedatives, tranquilizers, and antihistamines
  2. Vitamins, mineral supplements, and herbal teas
  3. Saline nasal spray, throat lozenges, and cough drops
  4. Aspirin, ibuprofen, and acetaminophen tablets
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Correct answer: Sedatives, tranquilizers, and antihistamines

Any medication that depresses the nervous system can make a pilot more susceptible to hypoxia.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17: Aeromedical Factors — Drugs, page 438

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Questions last reviewed: 18 October 2026