Maintenance Requirements of L-Thyroxine in the Treatment of Hypothyroidism

AUTOR(ES)
RESUMO

By analyzing data from 68 hypothyroid patients ranging in age from 15 to 75 years who had been maintained in a euthyroid state for at least a year with oral levothyroxine sodium therapy, we attempted to determine whether there was a correlation between L-thyroxine dose and body weight or patient age. The mean replacement dose of L-thyroxine was 186 μg a day ±69.6 or 2.76 μg per kg of body weight a day ±0.82. There was a significant correlation between L-thyroxine dose and body weight (P<.001), but due to the small number of patients studied who were older than 65 years of age, no correlation was noted between L-thyroxine dose and age.

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