Oral administration.
Adult : 1 tablet (10mg) daily.
Children 6 - 12 years : 1/2 tablet (5mg) twice daily or 1 tablet (10mg) once daily.
Children 3 - 6 years : 1/2 tablet (5mg) once daily.
In patients with renal insufficiency, dosage should be reduced to ½ 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 patient affected by side effects, the dose may be taken as 5mg in the morning and 5mg in the evening.