Paediatrics The recommended intravenous dose in paediatric patients is based on a population pharmacokinetic analysis of data pooled from 82 immunocompromised paediatric patients aged 2 to < 12 years old who were evaluated in three pharmacokinetic studies (examining single intravenous doses of 3 and 4 mg/ kg twice daily, multiple intravenous doses of 3, 4, 6 and 8 mg/ kg twice daily and multiple oral suspension doses of 4 and 6 mg/ kg twice daily).