Take 5 drops (child under 7 years), 10 drops (7 to 14 years) or 15 drops (adult) every two hours. As symptoms improve reduce dosage to 3 times daily. Or as directed by your health care professional. If diarrhoea persists for more than 6 hours in infants under 6 months - 12 hours in children under 3 years - 24 hours in children aged 3-6 years or 48 hours in adults and children over 6 years - seek medical advice.