Detailed Cetirizine dosage information for adults, the elderly and children. Includes dosages for Allergic Rhinitis and Urticaria; plus renal, liver and dialysis adjustments.

Oral doses: measure liquid medicine (oral solution) 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. Call your doctor if your symptoms do not improve, if they get worse, or if you also have a fever.

Cetirizine Oral Solution Dosage and Administration. Cetirizine hydrochloride oral solution can be taken without regard to food consumption. Children 2 to 5 Years for Chronic Urticaria: The recommended initial dose of cetirizine hydrochloride oral solution in children aged 2 to 5 years is 2.5 mg (½ teaspoon) syrup once daily. The dosage in this ...

The recommended dose of cetirizine hydrochloride oral solution in children 6 months to 23 months of age is 2.5 mg (½ teaspoonful) once daily. The dose in children 12 to 23 months of age can be increased to a maximum dose of 5 mg per day, given as ½ teaspoonful (2.5 mg) every 12 hours.

The safety of cetirizine hydrochloride oral solution has been demonstrated in 42 patients aged 6 to 11 months in a placebo-controlled 7-day trial. The prescribed dose was 0.25 mg/kg bid, which corresponded to a mean of 4.5 mg/day, with a range of 3.4 to 6.2 mg/day.