SOME NOTES ON THE MODE OF ACTION OF NORETHYNODREL IN PREVENTING FERTILITY IN RATS
- 1 May 1964
- journal article
- research article
- Published by Oxford University Press (OUP) in Acta Endocrinologica
- Vol. 46 (1) , 157-160
- https://doi.org/10.1530/acta.0.0460157
Abstract
Based on absolute doses required to reach the defined end points in rats, it is proposed that inhibition of implantation or of ovulation per se cannot explain the efficacy of norethynodrel in inhibiting fecundity in female rats. The small size of the dose required to demonstrate gonadotrophin suppression indicates that this action, with consequent inhibition of follicular development, is the probable cause of the anti-fertility effect.Keywords
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