Methods: In a clinical trial, 40 healthy term newborns (gestational age > 37 weeks) with bilirubin ≥12 and ≥15mg/dL in the second and third day, respectively, were randomly assigned to triple (n=20) or double phototherapy (n=20) groups. Total and direct serum bilirubin were measured at admission, 8, 16, and 24 hours after beginning of phototherapy, and every 12 hours thereafter until discharge (when bilirubin levels reached ≤ 10 mg/dL).