Is Glasdegib safe while breastfeeding?

Here is what LactMed, the Drugs and Lactation Database published by the U.S. National Institute of Child Health and Human Development (NICHD), reports about Glasdegib. The text below is quoted from that source — it is not our own verdict.

Summary of use during breastfeeding

No information is available on glasdegib during breastfeeding. It is 91% bound to plasma proteins, so amounts in milk are likely to be low. With a half-life of 17.4 hours, it is likely to be eliminated from milk by 4 to 7 days after the last dose. However, the manufacturer recommends that breastfeeding be discontinued during glasdegib therapy and for at least 30 days after the last dose.

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. Relevant published information was not found as of the revision date.

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 Glasdegib 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: Drugs and Lactation Database (LactMed), National Institute of Child Health and Human Development (NICHD), via NCBI Bookshelf, record “Glasdegib” (LM1450). LactMed on NCBI Bookshelf. LactMed is a registered trademark of the U.S. Department of Health and Human Services.

Educational summary of an authoritative source — not medical advice. Never start, stop, or change a medicine while breastfeeding without confirming with your doctor.