EFFECT OF ETHINYLOESTRADIOL ON PLASMA TESTOSTERONE LEVELS AND URINARY TESTOSTERONE EXCRETION IN MAN

1 September 1965

journal article
research article
Published by Oxford University Press (OUP) in Acta Endocrinologica

Vol. 50 (1) , 51-54
https://doi.org/10.1530/acta.0.0500051

Abstract

The daily oral administration of 1 mg of ethinylestradiol to normal men decreased the mean plasma testosterone from 0.84 + 0.07 ug/100 ml to 0.20 + 0.04 in 21 trials and decreased the urinary testosterone from 63 [plus or minus] 1.1 [mu]g/day to 8 [plus or minus] 0.3 in 16 trials.