II. Preparations (Norethindrone / Ethinyl Estradiol)

  1. Brevicon, Nortrel or Modicon (0.5/35)
  2. Ovysmen or Brevinor (UK, 0.5/35)
  3. Ovcon or Balziva (0.4/35)
  4. Femcon Fe (chewable, spearmint with iron, 0.4/35)

III. Components

  1. Norethindrone 0.4 to 0.5 mg (see preparations above)
  2. Ethinyl Estradiol 35 ug

IV. Effect

  1. Relative Progestational Activity: 0.5 (low)
  2. Estrogenic Activity: 42 (high)
  3. Androgenic Activity: 0.17 (low)

V. Pill associated problems

  1. Indications to switch to Ortho Tri-Cyclen
    1. Acne Vulgaris (lower androgen)
  2. Indications to switch to Ortho Cyclen
    1. Increased Appetite (lower Progestin)
    2. Breast Tenderness or engorgement (lower Estrogen)
    3. Major Depression provoked (lower Progestin)
    4. Headaches (lower Estrogen)
    5. Moodiness (less Estrogen or more Progestin)
    6. Weight gain (less Estrogen or more Progestin)
  3. Indications to switch to Ortho Novum 7/7/7
    1. Break-through bleed days 1-9 (more Estrogen)
    2. Break-through bleed all of month (more Estrogen)
    3. Menses too light (more Estrogen, less Progestin)
  4. Indications to switch to Ortho Novum 1/35
    1. Break-through bleed days 10-21 (more Progestin)
    2. Heavy Menses (more Progestin or less Estrogen)
    3. Dysmenorrhea or Menstrual Cramps (more Progestin)
  5. Indications to switch to Nordette
    1. Libido decreased (more androgen)

VI. References

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Related Studies

Ontology: Brevicon (C0107153)

Concepts Pharmacologic Substance (T121) , Steroid (T110)
MSH C020416
English Brevicon, brevicon

Ontology: Ovcon (C0722353)

Concepts Pharmacologic Substance (T121) , Organic Chemical (T109) , Hormone (T125)
English Ovcon, ovcon

Ontology: Modicon (C1691769)

Concepts Steroid (T110) , Pharmacologic Substance (T121) , Hormone (T125)
MSH C020416
English Modicon, modicon