Hypothyroidism Initially 50-100 mcg daily, may be increased by 25-50 mcg at intervals of about 4 wk until thyroid deficiency is corrected & maintenance dose is established.
Adult Maintenance dose: 100-200 mcg daily.
Elderly, those w/ CV disorder or in those w/ severe hypothyroidism of long standing Initially 12.5-50 mcg daily increased by increments of 12.5 to 25 mcg at interval of about 4 wk.
Congenital hypothyroidism 10-15 mcg/kg daily.
Childn >1 mth 5 mcg/kg daily,
<1 mth 5-10 mcg/kg daily. Adjusted in steps of 25 mcg every 2-4 wk until mild toxic symptoms appear, at which time the dosage is slightly reduced.
Juvenile myxedema Childn >1 yr Initially 2.5-5 mcg/kg daily.
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