of other steroids investigated , progesterone in high concentrations ( 3 x 10 ( -6 mol/l ) suppressed to a small extent the functional activity of the hypothalamus in vitro but 17 alpha-hydroxyprogesterone , 11 alpha-hydroxyprogesterone , 11 alpha , 17 alpha-dihydroxyprogesterone and 11-epicortisol had no effect on the delayed inhibition .
C0033308
progesterone
C0002328
dihydroxyprogesterone