Copyright Notice
Attribution Statement: LactMed is a registered trademark of the U.S. Department of Health and Human Services.
Bookshelf ID: NBK589163PMID: 36780411
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006-.
CASRN: 1223403-58-4
Drug Levels and Effects
Summary of Use during Lactation
No information is available on the clinical use of larotrectinib during breastfeeding. The manufacturer recommends that breastfeeding be discontinued during larotrectinib therapy and for 1 week after the last dose.
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.
Substance Identification
Substance Name
Larotrectinib
CAS Registry Number
1223403-58-4
Drug Class
Breast Feeding
Lactation
Milk, Human
Antineoplastic Agents
Enzyme Inhibitors
Protein Kinase Inhibitors
Signal Transduction Inhibitors
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.