The usual dose is about 5.6g twice daily by mouth although higher doses have been given. The required amount is to be taken with water preferably after a meal at bedtime.
Adults and Children over 12 years: One heaped teaspoon in the morning and at bedtime.
Children between 6 - 12 years: 1/2 - 1 teaspoonful, morning and evening, depending on age and size in the morning and at bedtime.
Children below 6 years: to be taken only on medical advice. It should be used with caution in the pediatric age group.