Is Ornidazole safe while breastfeeding?
Here is what NIH LactMed, the U.S. National Library of Medicine's authority on medicines and breastfeeding, reports about Ornidazole. This is a summary of that source — not our own verdict.
Effects on the breastfed infant
Relevant published information was not found as of the revision date.
Effects on milk supply
Relevant published information was not found as of the revision date.
Levels in milk
Maternal Levels. Seventy-seven mothers who had a cesarean section and received ornidazole as one preoperative dose of 1000 mg and two postoperative doses of 500 mg each within 24 hours contributed 123 colostrum and milk samples for analysis. These values were used to create a population pharmacokinetic model of ornidazole excretion into milk. Simulated milk levels with this dosage regimen found the median peak milk levels to be 5.4 mg/L at 27 hours after delivery in patient with normal total bilirubin ( 17 micromol/L) and 6.2 mg/L at 33 hours after delivery in patients with abnormal bilirubin ( 17 micromol/L).[3] Infant Levels. Relevant published information was not found as of the revision date.
“No published information” means the studies do not exist yet — not that Ornidazole is known to be harmful, and not that it is known to be safe. Your prescriber or pharmacist can weigh your baby's age and whether a better-studied alternative would do the same job. Worth asking before stopping a medicine you need.
Source: NIH LactMed (National Library of Medicine).
Educational summary of an authoritative source — not medical advice. Never start, stop, or change a medicine while breastfeeding without confirming with your doctor.