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Normal daily dosage: For adults and children from the age of 12 years, the normal dosage is 1 coated tablet taken twice daily (mornings and evenings), in sufficient liquid, and swallowed whole without chewing or crunching. Zyrtec-D may be taken during or between meals.
Treatment duration: Zyrtec-D may be taken only as long as do last the complaints linked to an obstructed nose and it should not be taken over a period exceeding 2 weeks. Once nasal obstruction has abated, treatment may be prolonged if necessary, by using cetirizine alone.
Patients suffering from renal and hepatic insufficiency: Patients suffering from renal or hepatic insufficiency should only take 1 tablet per day.
Zyrtec-D should not be taken by patients suffering from severe renal insufficiency.
