II. Preparations (Norethindrone / Ethinyl Estradiol)
- Brevicon, Nortrel or Modicon (0.5/35)
- Ovysmen or Brevinor (UK, 0.5/35)
- Ovcon or Balziva (0.4/35)
- Femcon Fe (chewable, spearmint with iron, 0.4/35)
III. Components
- Norethindrone 0.4 to 0.5 mg (see preparations above)
- Ethinyl Estradiol 35 ug
IV. Effect
- Relative Progestational Activity: 0.5 (low)
- Estrogenic Activity: 42 (high)
- Androgenic Activity: 0.17 (low)
V. Pill associated problems
- Indications to switch to Ortho Tri-Cyclen
- Acne Vulgaris (lower androgen)
- Indications to switch to Ortho Cyclen
- Indications to switch to Ortho Novum 7/7/7
- Indications to switch to Ortho Novum 1/35
- Break-through bleed days 10-21 (more Progestin)
- Heavy Menses (more Progestin or less Estrogen)
- Dysmenorrhea or Menstrual Cramps (more Progestin)
- Indications to switch to Nordette
- Libido decreased (more androgen)
VI. References
- Cerel-Suhl (1999) Am Fam Physician 60(7):2073 [PubMed]
- Speroff (1993) Obstet Gynecol 81:1034-47 [PubMed]
- Dickey (1998) Managing Contraceptive Pill Patients