Skip to Content

Trametinib use while Breastfeeding

Drugs containing Trametinib: Mekinist

Medically reviewed by Drugs.com. Last updated on Nov 16, 2020.

Trametinib Levels and Effects while Breastfeeding

Summary of Use during Lactation

No information is available on the clinical use of trametinib during breastfeeding. Because trametinib is 97% bound to plasma proteins, the amount in milk is likely to be low. However, its half-life is 3.9 to 4.8 days and it might accumulate in the infant. The manufacturer recommends that breastfeeding be discontinued during trametinib therapy and for 4 months 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

Trametinib

CAS Registry Number

871700-17-3

Drug Class

  • Breast Feeding
  • Lactation
  • 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.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.