Adult Initially 50-100 mcg daily, may be increased by increments of 25-50 mcg every 2-4 wk until thyroid deficiency is corrected & maintenance dose is established. Maintenance dose: 100-200 mcg daily.
Congenital hypothyroidism Childn 6-12 yr 100-150 mcg daily; 4-5 mcg daily/kg,
1-5 yr 75-100 mcg daily; 5-6 mcg daily/kg,
6-12 mth 50-75 mcg daily; 6-8 mcg daily/kg,
0-6 mth 25-50 mcg daily; 8-10 mcg daily/kg.