Anaphylaxis and Allergic Reactions · CDA

Which drug is considered the first-line treatment for suspected anaphylaxis in a dental office setting?

  1. Diphenhydramine, an oral or injectable antihistamine
  2. Aspirin taken orally by the patient
  3. Epinephrine given intramuscularly
  4. An oral corticosteroid tablet swallowed by the patient
Show answer and explanation

Correct answer: Epinephrine given intramuscularly

Epinephrine is the first-line drug for anaphylaxis; it rapidly counteracts airway edema, vasodilation and bronchospasm and should be given intramuscularly as soon as anaphylaxis is suspected.

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