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Pharmacology · Antimicrobials: zanamivir in asthma
Sample itemA 30-year-old with severe persistent asthma develops influenza. Which anti-influenza drug is generally avoided in patients with airway disease because it can cause bronchospasm?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Zanamivir
Zanamivir is delivered by inhalation and can provoke bronchospasm, so it is avoided in asthma and chronic obstructive disease. Oseltamivir, taken orally, is the usual choice.
Option by option
A. Oseltamivir
Oseltamivir is oral and does not irritate the airway.
B. Zanamivir (correct)
Correct. Inhaled zanamivir can precipitate bronchospasm.
C. Baloxavir
Baloxavir is oral and has no inhaled airway effect.
D. Peramivir
Peramivir is given intravenously and does not affect the airway directly.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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