Famciclovir Levels and Effects while Breastfeeding
Summary of Use during Lactation
Because there is no published experience with famciclovir during breastfeeding, other agents may be preferred, especially while nursing a newborn or preterm infant.[1]
Drug Levels
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.
Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Clarke E, Patel R, Dickins D, et al. Joint British Association for Sexual Health and HIV and Royal College of Obstetricians and Gynaecologists national UK guideline for the management of herpes simplex virus (HSV) in pregnancy and the neonate (2024 update). Int J STD AIDS 2025;36:4-23. [PubMed: 39348176]
Substance Identification
Substance Name
Famciclovir
CAS Registry Number
104227-87-4
Drug Class
Breast Feeding
Lactation
Milk, Human
Anti-Infective Agents
Antiviral Agents
Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.
