This paper is only available as a PDF. To read, Please Download here.
Abstract
The study was designed to test the long-term influence of a low-dose combined oral
contraceptive upon lactation and infant growth when treatment was initiated at day
30 postpart um. The contraceptive tested contained ethinyl estradiol 0.03 mg and levonorgestrel
0.15 mg. Two control groups were formed by women who received an injectable placebo
or a Copper T at day 30 postpartum. Women in the injectable placebo group received
non-hormonal contraceptives at day 90 postpartum. An exacting list of requirements
for admission and continuation in the study was applied to all groups.
The oral contraceptive group had a significantly lower percentage of cases in full
nursing from the 4th through the 10th postpartum month when compared to both control
groups. The average absolute weight of infants in the oral contraceptive group was
significantly lower at several ages when compared to the placebo group but not when
compared to the Copper T group. No adverse side effects upon infant's health were
detected.
It was concluded that the oral contraceptive tested showed a moderate inhibitory influence
upon lactation when treatment was initiated at the beginning of the second postpartum
month.
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to ContraceptionAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Fertility regulation in nursing women: III. Short-term influence of a low-dose combined oral contraceptive upon lactation and infant growth.Contraception. 1983; 27: 1-11
- Fertility regulation in nursing women: I. The probability of conception in full nursing women living in an urban setting.J. Biosoc. Sci. 1982; 14: 329-342
- Transfer of contraceptive steroids to human milk.Res. Reprod. 1979; 11: 1-2
- d-Norgestrel concentrations in maternal plasma, milk and child plasma during administration of oral contraceptives to nursing women.Am. J. Obstet. Gynecol. 1977; 129: 178-184
Croxatto, H.B., Díaz, S., Peralta, O., Juez, G., Casado, M.E., Salvatierra, A.M. and Durán, E.: Fertility regulation in nursing women: II. Comparative performance of progesterone implants versus placebo and Copper T. Am. J. Obstet. Gynecol., in press.
- 2nd ed. Textbook of Pediatrics. W.B. Saunders Co.,, Philadelphia1964: 42
- WHO collaborative studies on breast-feeding.J. Biosoc. Sci. Suppl. 1977; 4: 83-89
- Infant feeding and infant mortality in rural Chile.Bull. Wld. Health Org. 1973; 48: 203
- Morbidity in breast-fed and artificially fed infants.J. Pediatr. 1977; 90: 726
Article info
Publication history
Accepted:
December 8,
1982
Received:
October 26,
1982
Identification
Copyright
© 1983 Published by Elsevier Inc.
