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Cycle control and modern contraception: some relevant aspects

  • M. J. Weijers

Summary

Literature data regarding cycle control of oral contraceptives are often unclear because of the lack of information on definitions concerning the evaluation of clinical trials. This frequently makes a valid comparison of results from different studies impossible. Information considered to be meaningful for practical purposes is discussed. Based on experience from multicentre trials with 14 000 women involving 180 000 cycles with combinations containing varying doses of a progestational and an oestrogenic substance, details are given about the role these active substances play in cycle control.

It is demonstrated that the progestational and oestrogenic components have independent influences on spotting and breakthrough bleeding. Predictions regarding cycle control, based only on the ratio progestogen to oestrogen, should not be made.

Keywords

Oral Contraceptive Oral Contraception Modern Contraception Oestrogen Dose Breakthrough Bleeding 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1984

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  • M. J. Weijers

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