A 6-month randomized, placebo-controlled trial of propranolol (2 mg/kg/day p.o. t.i.d.) was conducted in 40 children aged 9 weeks-5 years with facial or extrafacial infantile hemangiomas. Blinded volume measurements were conducted at weeks 0, 4, 8, 12, 16, 20 and 24 and blinded investigator scoring at weeks 0, 12 and 24. Hemangioma growth stopped at week 4 in the propranolol group and significant differences in the percentage volume change were seen between groups, maximally at week 12. Significant differences in hemangioma redness and elevation occurred in the propranolol group at weeks 12 and 24. No significant hypotension, hypoglycemia or bradycardia occurred, but one patient discontinued due to an upper respiratory tract infection. ...