Theoretically, if a baby is exposed to tetracycline in breast milk, it could cause tooth
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Several new tetracyclines have become available recently, generally for organisms resistant to older antibiotics
Excretion into human milk: Yes
It binds to calcium in breast milk and is absorbed poorly by the infant
Tetracycline can pass into breast milk and may affect bone and tooth development in a nursing infant
A number of reviews have stated that tetracyclines are contraindicated during breastfeeding because of possible staining of infants’ dental enamel or bone
Drug-induced ‘chestfeeding’ liquid ‘comparable’ to that from mothers when it comes to baby
The science is new, but fascinating
Doxycycline is a tetracycline antibiotic used to treat infections in your lungs, eyes, mouth, skin, and many other areas of your body
[2] Using the average of the peak and trough milk levels in this study, the estimated average intake of an exclusively breastfed infant would be about 6% of the Tetracycline readily crosses the placenta and is excreted in high amounts in breast milk
Tetracyclines do cross into breast milk; therefore, they are safe while breastfeeding
The American Academy of Pediatrics and the World Health Organization (WHO) both classify tetracycline as compatible with breast-feeding, although data on the use of tetracycline during lactation is limited
Tetracycline tends to concentrate in bone, liver, tumors, spleen, and teeth
"Certain antibiotics may be transmitted through breast milk and affect the baby’s bone growth, development of teeth, and may worsen jaundice," says Sara Tetracyclines may cause your skin to be more sensitive to sunlight than it is normally
They may cause the nursing baby's teeth to become discolored and may slow down the growth of the baby's teeth and bones
In addition, minocycline
Use During Pregnancy and Breastfeeding
Doxycycline is excreted in breast milk and therefore may cause permanent discoloration of teeth, damage to tooth enamel, impairment of skeletal growth, and Tetracycline readily crosses the placenta and is excreted in high amounts in breast milk
Doxycycline is a tetracycline