Dexamethasone suppression of serum T3 and T4.
Dexamethasone (2 mg q6h for 48 h) decreased serum T3 in normal and athyreotic subjects, and decreased T4 in normal subjects. Dexamethasone probably alters secretion and peripheral metabolism of thyroid hormones.
D002986:Clinical Trials as Topic; D003907:Dexamethasone / Q000494:pharmacology*; D006801:Humans; D013961:Thyroid Gland / Q000187:drug effects; D013974:Thyroxine / Q000097:blood*; D014284:Triiodothyronine / Q000097:blood*
D014284:Triiodothyronine; D003907:Dexamethasone; D013974:Thyroxine