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Abstract
The study was designed to test the long-term influence of a low-dose oral contraceptive
upon lactation and infant growth when treatment was initiated at day 90 postpartum.
The contraceptive tested contained ethinyl estradiol 0.03 mg and levonorgestrel 0.15
mg. The control group was formed by women who chose non-hormonal contraception at
the same postpartum time. Only cases who were in exclusive breast-feeding with a minimal
infant daily weight increase of 20 g per day during the third month of age were included.
The oral contraceptive group showed a significantly lower percentage of cases in full
nursing from the 6th postpartum month and a significantly lower infant weight increase
during the 4th month of age when compared to the control group. No differences were
found in the absolute infant weight up to one year of age. 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 day 90 postpartum.
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References
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Article info
Publication history
Accepted:
December 8,
1982
Received:
October 26,
1982
Identification
Copyright
© 1983 Published by Elsevier Inc.
