Is Cabotegravir safe while breastfeeding?
Here is what NIH LactMed, the U.S. National Library of Medicine's authority on medicines and breastfeeding, reports about Cabotegravir. 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. An abstract reports a study in which long-acting cabotegravir 600 mg was injected intramuscularly every 56 days to 27 nursing mothers. Median breastmilk concentrations at these times were 14.6 mcg/L just before the 1-month injection, 29.8 mcg/L one week later, 27.4 mcg/L just before the 5-month injection, and 36.1 mcg/L one week later.[ 4 ] Infant Levels. Relevant published information was not found as of the revision date.
Alternatives LactMed lists
“No published information” means the studies do not exist yet — not that Cabotegravir 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.