Adults and adolescents 12 years and above: The daily recommended dose is 5 mg (10 ml of solution).
Elderly: Adjustment of the dose is recommended in elderly patients with moderate to severe renal impairment (see Patients with renal impairment as follows).
Children aged 2 to 6 years: The daily recommended dose is 2.5 mg to be administered in 2 intakes of 1.25 mg (2.5 ml of solution twice daily).
Children aged 6 to 12 years: The daily recommended dose is 5 mg (10 ml of solution), Due to the lack of data in this population, the administration of the product to infants and toddlers aged less than 2 years is not recommended.
Patients with renal impairment: The dosing intervals must be individualized according to renal function. Refer to the following table and adjust the dose as indicated. To use this dosing table, an estimate of the patients creatinine clearance (CLcr) in ml/min is needed. The CLcr (ml/min) may be estimated from serum creatinine (mg/dl) determination using the following formula: CLcr = {[140 - age (years)] x weight (kg)} ÷ {72 x serum creatinine (mg/dl)} x {0.85 for women}.
Dosing adjustments for patients with impaired renal function: (See Table 2.)

Patients with hepatic impairment: No dose adjustment is needed in patients with solely hepatic impairment. In patients with hepatic impairment and renal impairment, adjustment of the dose is recommended (see Patients with renal impairment as previously mentioned).
Duration of use: Intermittent allergic rhinitis (symptoms <4 days/week or during less than 4 weeks) has to be treated according to the disease and its history; it can be stopped once the symptoms have disappeared and can be restarted again when symptoms reappear. In case of persistent allergic rhinitis (symptoms >4 days/week and during more than 4 weeks), continuous therapy can be proposed to the patient during the period of exposure to allergens.
Route of Administration: Oral.