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 Name

Trametinib

CAS Registry Number

871700-17-3

Drug Class

• Breast Feeding
• Lactation
• Antineoplastic Agents
• Enzyme Inhibitors
• Protein Kinase Inhibitors
• Signal Transduction Inhibitors