Erythromycin pregnancy category - Pregnancy drugs

Complete list of drugs used during pregnancy and lactation, its category as per FDA explained here, PG drugs teratogenic effect of drugs used during pregnancy

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Saturday, April 13, 2024

Erythromycin pregnancy category

Erythromycin is an antibiotic that belongs to the macrolide class. It is used to treat a variety of bacterial infections, including respiratory tract infections, skin infections, ear infections, and certain sexually transmitted infections caused by bacteria such as chlamydia. Erythromycin works by inhibiting bacterial protein synthesis, thereby stopping the growth and spread of bacteria.


Pregnancy     Category B       ( by FDA )

                       Category  A       (AU TGA )


  1. Pregnancy: Erythromycin is generally considered safe for use during pregnancy. It is often classified as pregnancy category B by regulatory agencies such as the FDA (Food and Drug Administration). This means that animal reproduction studies have not shown a risk to the fetus, but there are no adequate and well-controlled studies in pregnant women. However, erythromycin has been used for many years in pregnant women without evidence of harm to the fetus. As with any medication during pregnancy, it's essential to weigh the potential benefits against the potential risks, and it's best to consult with a healthcare professional for personalized advice.


  2. Lactation: Erythromycin is excreted into breast milk, but it is usually considered compatible with breastfeeding. According to the American Academy of Pediatrics, erythromycin is usually considered compatible with breastfeeding. However, it's important to monitor the infant for any potential side effects, such as gastrointestinal upset. If erythromycin is necessary for the mother's health, healthcare providers may recommend closely monitoring the infant or considering alternative treatment options.

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