Doxycycline concentrations in breast milk are generally low. However, infants exposed to doxycycline through breast milk may experience discoloration of developing teeth. This discoloration is usually a yellow-grey or brown hue and is more likely if the exposure occurs during the last trimester of pregnancy or the first few years of life when teeth are forming.
Factors Affecting Infant Exposure
The amount of doxycycline an infant receives depends on the mother’s dose, the infant’s age and weight, and the frequency of breastfeeding. Lower doses of doxycycline generally result in less drug transfer to the infant. Always discuss your medication with your doctor and/or lactation consultant. They can assess your individual risk factors and advise you on the safest approach.
Monitoring the Infant
Regular dental checkups for the infant are advisable, especially if maternal doxycycline use occurred during pregnancy or the first few years of life. Early detection of any dental discoloration allows for timely management and may minimize long-term effects. Close monitoring for any other adverse reactions is also prudent, though rare.
