Serum T4, T3 and reverse T3 during treatment with propranolol in hyperthyroidism, L-T4 treated myxedema and in normal man

Horm Metab Res. 1979 Jan;11(1):34-6. doi: 10.1055/s-0028-1092678.


Serum concentrations of T4, T3 and reverse T3 were studied in two hyperthyroid groups (n = 13 and 11), in a group of normals (n = 9) and in a group of L-T4 substituted patients (n = 7) with severe pretreatment hypothyroidism. Serum T4 did not change except in one of the hyperthyroid groups change to in which a slight decrease was found. In all groups a significant fall in serum T3 and a significant rise in serum reverse T3 were found. An expected increase in serum TSH in the normal and in the L-T4 substituted groups could not be demonstrated.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Female
  • Humans
  • Hyperthyroidism / drug therapy*
  • Male
  • Middle Aged
  • Myxedema / drug therapy*
  • Propranolol / therapeutic use*
  • Stereoisomerism
  • Thyroxine / blood*
  • Thyroxine / therapeutic use
  • Triiodothyronine / blood*
  • Triiodothyronine, Reverse / blood*


  • Triiodothyronine
  • Triiodothyronine, Reverse
  • Propranolol
  • Thyroxine