Take cetirizine exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.
You may take cetirizine with or without food.
The chewable tablet must be chewed before you swallow it.
Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.
 Detailed Cetirizine dosage information
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Overdose symptoms may include feeling restless or nervous, and then feeling drowsy.
