Last update Oct. 14, 2025

Estradiol + Nomegestrol

Likely Compatibility

Fairly safe. Mild or unlikely adverse effects. Compatible under certain circumstances. Follow-up recommended. Read Commentary.

Combined contraceptive with Estrogen (Estradiol hemihydrate) plus Progestin (Nomegestrol acetate) for daily oral administration. ESTRADIOL is excreted in breast milk in clinically non-significant amount without problems having been observed in infants whose mothers have received it. Plasma levels of drug in those infants were undetectable or very low. There was higher excretion into milk when administered vaginally. There is some evidence (though not definite) that estrogens may decrease milk production, especially if they are used during the first few days postpartum. Estrogens may decrease the protein content of breastmilk. No problems have been observed in infants whose mothers were on estrogens, except for rare cases of transient gynecomastia in infants whose mothers received higher doses than usual. Exposure to estrogen in childhood or adolescence does not influence subsequent milk production. NOMEGESTROL is a third generation synthetic progestogen which is structurally related to progesterone. It has been used as a part of only-one-component contraceptives which have one year lasting effect in subdermal implants. Also orally used alone or associated to estrogen (see info on Estradiol + Nomegestrol). In a study comparing effects on breastfeeding women (120 with a Nomegestrol implant and 120 with an intrauterine device (IUD), there were no significant differences on duration of breastfeeding nor somatic follow-up criteria nor health issues in infants (Abdel -Aleem 1996). Differences on frequency of breastfeeding, amount of milk production and the weight gain of breastfed infants with similar combined contraceptives compared to other contraceptive methods (intrauterine devices, isolated progestogens) have not been observed. However, it would advisable to avoid them until breastfeeding is well established (4 to 6 weeks). During lactation, progestogen-only contraceptives are preferred over those combined with estrogen. Otherwise, those with lower doses of estrogen should be used. Within the first 6 weeks postpartum, non-hormonal contraceptive methods should be the first option. Hormonal contraceptives do not change the milk composition whether minerals (Mg, Fe, Cu, Ca, P), fats, lactose or calories but a little protein.


See below the information of these related products:

  • Estradiol (Fairly safe. Mild or unlikely adverse effects. Compatible under certain circumstances. Follow-up recommended. Read Commentary.)
  • Nomegestrol Acetate (Safe product and/or breastfeeding is the best option.)

Alternatives

We do not have alternatives for Estradiol + Nomegestrol.

Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.

Other names

Estradiol + Nomegestrol in other languages or writings:

Group

Estradiol + Nomegestrol belongs to this group or family:

Tradenames

Main tradenames from several countries containing Estradiol + Nomegestrol in its composition:

Pharmacokinetics

Variable Value Unit
Oral Bioavail. 100 / 63 %
Molecular weight 272 / 371 daltons
Protein Binding 98 / 98 %
VD 1 / 1.7 l/Kg
Tmax 1 - 4 / 2 hours
T½ 20 - 26 / 46 (28 - 83) hours

References

  1. EMA. Estradiol + Nomegestrol acetato. Ficha técnica. 2016 Full text (in our servers)
  2. EMA. Estradiol + Nomegestrol acetate. Drug Summary. 2016 Full text (in our servers)
  3. Pinheiro E, Bogen DL, Hoxha D, Wisner KL. Transdermal estradiol treatment during breastfeeding: maternal and infant serum concentrations. Arch Womens Ment Health. 2015 Abstract Full text (link to original source) Full text (in our servers)
  4. Dutta DK, Dutta I. Desogestrel mini pill: is this safe in lactating mother? J Indian Med Assoc. 2013 Abstract
  5. Espey E, Ogburn T, Leeman L, Singh R, Ostrom K, Schrader R. Effect of progestin compared with combined oral contraceptive pills on lactation: a randomized controlled trial. Obstet Gynecol. 2012 Abstract
  6. Shaamash AH, Sayed GH, Hussien MM, Shaaban MM. A comparative study of the levonorgestrel-releasing intrauterine system Mirena versus the Copper T380A intrauterine device during lactation: breast-feeding performance, infant growth and infant development. Contraception. 2005 Abstract
  7. Perheentupa A, Ruokonen A, Tapanainen JS. Transdermal estradiol treatment suppresses serum gonadotropins during lactation without transfer into breast milk. Fertil Steril. 2004 Abstract Full text (link to original source)
  8. AAP - American Academy of Pediatrics Committee on Drugs. Transfer of drugs and other chemicals into human milk. Pediatrics. 2001 Sep;108(3):776-89. Abstract Full text (link to original source) Full text (in our servers)
  9. Dórea JG. Oral contraceptives do not affect magnesium in breast milk. Int J Gynaecol Obstet. 2000 Abstract
  10. Dorea JG, Myazaki E. Calcium and phosphorus in milk of Brazilian mothers using oral contraceptives. J Am Coll Nutr. 1998 Abstract
  11. Díaz S, Zepeda A, Maturana X, Reyes MV, Miranda P, Casado ME, Peralta O, Croxatto HB. Fertility regulation in nursing women. IX. Contraceptive performance, duration of lactation, infant growth, and bleeding patterns during use of progesterone vaginal rings, progestin-only pills, Norplant implants, and Copper T 380-A intrauterine devices. Contraception. 1997 Abstract
  12. Abdel-Aleem H, Abol-Oyoun el-S M, Shaaban MM, el-Saeed M, Shoukry M, Makhlouf A, Salem HT. The use of nomegestrol acetate subdermal contraceptive implant, uniplant, during lactation. Contraception. 1996 Abstract
  13. Costa TH, Dorea JG. Concentration of fat, protein, lactose and energy in milk of mothers using hormonal contraceptives. Ann Trop Paediatr. 1992 Abstract
  14. World Health Organization (WHO) Task Force on Oral Contraceptives. Effects of hormonal contraceptives on breast milk composition and infant growth. Stud Fam Plann. 1988 Abstract
  15. Betrabet SS, Shikary ZK, Toddywalla VS, Toddywalla SP, Patel D, Saxena BN. ICMR Task Force Study on hormonal contraception. Transfer of norethisterone (NET) and levonorgestrel (LNG) from a single tablet into the infant's circulation through the mother's milk. Contraception. 1987 Abstract
  16. Nilsson S, Mellbin T, Hofvander Y, Sundelin C, Valentin J, Nygren KG. Long-term follow-up of children breast-fed by mothers using oral contraceptives. Contraception. 1986 Abstract
  17. Madhavapeddi R, Ramachandran P. Side effects of oral contraceptive use in lactating women--enlargement of breast in a breast-fed child. Contraception. 1985 Abstract
  18. Tankeyoon M, Dusitsin N, Chalapati S, Koetsawang S, Saibiang S, Sas M, Gellen JJ, Ayeni O, Gray R, Pinol A, et al. Effects of hormonal contraceptives on milk volume and infant growth. WHO Special Programme of Research, Development and Research Training in Human Reproduction Task force on oral contraceptives. Contraception. 1984 Abstract
  19. Díaz S, Peralta O, Juez G, Herreros C, Casado ME, Salvatierra AM, Miranda P, Durán E, Croxatto HB. Fertility regulation in nursing women: III. Short-term influence of a low-dose combined oral contraceptive upon lactation and infant growth. Contraception. 1983 Abstract
  20. Peralta O, Díaz S, Juez G, Herreros C, Casado ME, Salvatierra AM, Miranda P, Durán E, Croxatto HB. Fertility regulation in nursing women: V. Long-term influence of a low-dose combined oral contraceptive initiated at day 90 postpartum upon lactation and infant growth. Contraception. 1983 Abstract
  21. Nilsson S, Nygren KG, Johansson ED. Transfer of estradiol to human milk. Am J Obstet Gynecol. 1978 Abstract
  22. Nilsson S, Nygren KG, Johansson ED. d-Norgestrel concentrations in maternal plasma, milk, and child plasma during administration of oral contraceptives to nursing women. Am J Obstet Gynecol. 1977 Abstract
  23. Marriq P, Oddo G. [Letter: Gynecomastia in the newborn induced by maternal milk? An unusual complication of oral contraceptives]. Nouv Presse Med. 1974 Abstract
  24. Guiloff E, Ibarra-Polo A, Zañartu J, Toscanini C, Mischler TW, Gómez-Rogers C. Effect of contraception on lactation. Am J Obstet Gynecol. 1974 Abstract
  25. Balmer HC, Macdonald DJ. Hormonal therapy for suppressing lactation. Can Fam Physician. 1971 Abstract Full text (link to original source) Full text (in our servers)

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