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Cetirizine

Brand: Zyrtec

Antihistamine (2nd-gen)Used for: AllergiesRespiratory & Allergy

No boxed warning on the current FDA label.

Caution
Some drowsiness, more than with loratadine or fexofenadine.

Common side effects

  • Drowsiness
  • Dry mouth
  • Fatigue
  • Headache

Key interactions

  • Alcohol adds to drowsiness
  • Other sedatives increase drowsiness

Counseling points

  • May cause some drowsiness
  • May be taken with or without food
  • One dose lasts 24 hours
  • Use caution driving until you know its effect
  • Avoid alcohol
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