Oral.
Adult: 10 mg once daily.
Children: > 6 years: 10 mg daily, either 5 mg twice daily or 10 mg once daily;
3-6 years: 5 mg daily, either 2.5 mg twice daily or 5 mg once daily.
Patients with Renal Insufficiency: Dosage should be reduced to 1/2 the daily dose.
It is advisable to take the drug with a little liquid during the evening meal since the symptoms for which the product is given usually appear during the night.
In patients affected by side effects, the dose may be taken as 5 mg in the morning and 5 mg in the evening.
Oral solution: 10 mL solution = 10 mg or 5 mL solution = 5 mg or 2.5 mL solution = 2.5 mg.