No information is available on the clinical use of suzetrigine during breastfeeding. Because suzetrigine is more than 99% bound to plasma proteins and its active metabolite is more than 96% protein bound, the amounts in milk are likely to be low. If the mother requires suzetrigine, it is not a reason to discontinue breastfeeding. However, until more data become available, an alternate drug may be preferred, especially while nursing a newborn or preterm infant.