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“When administered to adult human males in doses of 200 or 600 mg daily, Danazol produced decreases in plasma levels of testosterone (T) and androstenedione (A) which were dose related.”
The Journal of clinical endocrinology and metabolism • 1971 | View Paper
“ Danazol has been reported to act as an interference in the immunoassay measurement of various androgens (including androstenedione ), resulting in falsely elevated values for these hormones (5).”