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Suppression of ovarian function by Microgynon 30 in day 1 and day 5 "starters"
Contraception
|May 1, 1986
Abstract:
The suppression of ovulation during the first treatment cycle with Microgynon 30 (150 micrograms levonorgestrel and 30 micrograms ethinyl oestradiol) for nine subjects starting the "pill" on day 1 of their cycle and five subjects on day 5 was investigated. Serum oestradiol and progesterone levels throughout the cycle and midcycle urinary LH levels were reliably suppressed in all day 1 "starters". Serum progesterone levels and urinary LH levels were also suppressed in day 5 "starters" but one subject produced oestradiol levels within the normal range of ovulatory cycles. Mean oestradiol levels of day 5 "starters" were found to be significantly higher than those of day 1 "starters" (p less than 0.05).
Keywords:
BiologyContraceptionContraceptive Agents, Estrogen--administraction and dosageContraceptive Agents, Female--administraction and dosageContraceptive Agents, Progestin--administraction and dosageContraceptive Agents--administraction and dosageContraceptive Mode Of ActionCorpus Luteum HormonesEndocrine SystemEstradiol--analysisEstrogensEthinyl Estradiol--administraction and dosageEvaluationExaminations And DiagnosesFamily PlanningGonadotropinsGonadotropins, PituitaryHormonesLaboratory Examinations And DiagnosesLaboratory ProceduresLevonorgestrel--administraction and dosageLuteinizing HormoneMenstrual CycleMenstruationOvulationOvulation SuppressionPhysiologyProgestational HormonesProgesteroneReproductionReproductive Control Agents