Nadolol Versus Propranolol in Children With Infantile Hemangiomas

Patients will be administered twice-daily doses of medication as follows: since Day 0- 0.5 mg/kg/day ; since Day 7-1.0 mg/kg/day and since Day 14- 1.5 mg/kg/day. In all subsequent visits the dosage will be adjusted based on the current weight rather than the baseline weight to maintain 1.5 mg/kg/day. Or the dose may be escalated (by 0.5 mg/kg/day at any following study visit) up to 3 mg/kg/day based on the clinical response to maintain the dose that led to at least 75% reduction in the hemangioma size until Week 24, when unblinding happen. At Week 24 paticipants can start weaning by 10% per week or continue with the last dose, depending on the investigator's decision. S/he will be monitored until Week 52.

Patients will be administered twice-daily doses of medication as follows: since Day 0- 0.5 mg/kg/day ; since Day 7-1.0 mg/kg/day and since Day 14- 1.5 mg/kg/day. In all subsequent visits the dosage will be adjusted based on the current weight rather than the baseline weight to maintain 1.5 mg/kg/day. Or the dose may be increased by investigator, based on clinical response by 0.5 mg/kg/day at any study visit (up to 3 mg/kg/day divided twice a day) to maintain the dose that lead to at least 75% reduction in the hemangioma size until Week 24, when unblinding happen. At Week 24 paticipants can start weaning by 10% per week or continue with the last dose, depending on the investigator's decision. S/he will be monitored until Week 52.