neither pgi-2 ( 10 micrograms/h ) nor 6-keto pgf-1 alpha ( 10 or 100 micrograms/h ) had any significant effect on plasma concentrations of 20 alpha-dihydroprogesterone or on luteal tissue concentrations of pregnenolone , progesterone or 20 alpha-dihydroprogesterone .
C0033308
progesterone
C0012311
20