[Steroid metabolism in primates. XVIII. Return to higher levels of 17-ketosteroid excretion in urine after ending a long-term treatment with mestranol/chlormadinone acetate in the baboon].

: 6 weeks after terminating a long-time application of the ovulation inhibitor Ovosiston (mestranol/chlormadinone acetate) in female baboons, excretion of 17-ketosteroids in urine is still decreased. 6 months after ceasing the preparation, urinary 17-ketosteroid excretion resembles that of the control group.