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.