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Seasonal Oral Contraceptive Cycle

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Seasonal Oral Contraceptive Cycle, Seasonal Contraception, Extended-Cycle Oral Contraceptive, Seasonale, Seasonique, Lybrel, Amethyst, LoSeasonique, Quartette

  • See Also
  1. Oral Contraceptive
  • Indications
  1. Menstrual Migraine
  2. Heavy Menstrual Bleeding
  3. Women wanting to reduce Menses to 4 times per year
  • Techique
  • Seasonal, 84 day regimen
  1. Continue active pills (no Placebo pills) until:
    1. Breakthrough bleeding or
    2. 84 days pass
  2. When active phase completed
    1. Hormone free: 5-7 days
  • Preparations
  1. Any monophasic Oral Contraceptive may be used
    1. Simply do not take Placebo pills
    2. Much less expensive with generics ($60 per 3 months, compared with $200-300 for trade name preparations)
    3. Typical monophasic Oral Contraceptive used in Seasonal Contraception (e.g. Loestrin 1/20, Alesse, Aviane)
      1. Low dose Estrogen (20-30 mcg Ethinyl Estradiol) and
      2. Progestin (e.g. Levonorgestrel, Norethindrone)
  2. Preparations marketed for seasonal regimen
    1. Seasonale (84 day regimen, same components as Levlen and Nordette)
      1. Levonorgestrel 150 mcg
      2. Ethinyl Estradiol 30 mcg
    2. Seasonique (84 day regimen + 7 low dose Estrogen tablets)
      1. Includes 7 additional pills containing only 10 mcg Ethinyl Estradiol
      2. Levonorgestrel 100 mcg
      3. Ethinyl Estradiol 30 mcg
    3. Lybrel or Amethyst (365 day regimen without Placebo pills)
      1. Levonorgestrel 90 mcg
      2. Ethinyl Estradiol 30
    4. LoSeasonique or Amethia Lo (84 day regimen + 7 low dose Estrogen tablets)
      1. Includes 7 additional pills containing only 10 mcg Ethinyl Estradiol
      2. Levonorgestrel 100 mcg
      3. Ethinyl Estradiol 20 mcg
    5. Quartette (84 day regimen)
      1. Four phase extended-cycle of varying Estrogen dose
        1. Includes 7 additional pills with only 10 mcg Ethinyl Estradiol
      2. Consider if breakthrough bleeding on Seasonal Contraception persists beyond the first 3 months
      3. Similar to LoSeasonique (differs only in the varying Estrogen dose)
        1. Levonorgestrel 150 mcg
        2. Ethinyl Estradiol varies between 20 mcg, 25 mcg, 30 mcg, 10 mcg over 4 phases and 84 days
  • References
  1. (2013) Presc Lett 20(9): 52
  2. (2015) Presc Lett 22(10): 57