Is Alectinib safe while breastfeeding?

Here is what NIH LactMed, the U.S. National Library of Medicine's authority on medicines and breastfeeding, reports about Alectinib. 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. A woman being treated with alectinib 600 mg once daily for lung cancer gave birth a normal infant. A milk sample taken postpartum contained 152 mcg/L of alectinib.[ 1 ] The time of the sample was not stated, but because of the drug s long half-life, the timing might not be critical. 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 Alectinib 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.