This is an interesting paper that Lorraine at Scottish Thyroid petition found. PR
"In conclusion, this prospective study of patients with different severities of primary hypothyroidism showed, using the low-dose cosyntropin test, an improved cortisol response after normalization of thyroid hormone levels. The mechanism of impaired cortisol secretion in cases with hypothyroidism
still has to be elucidated but our data support an adrenal rather than a pituitary affection."