At usual doses, this substance is considered compatible with breastfeeding.
The available information, based on a small number of cases indicates that mexiletine concentration reaches low levels in milk and is not likely to cause disorders on the baby, especially if greater than eight weeks old.
Based on a study of two patientshas been estimated that an exclusively breastfed infant would receive a maximum of 2% of the maternal dose.
However, the lack of comprehensive studies on the use of this substance during breastfeeding forces monitor closely the development of the child.
Warning of the manufacturer:
This medicine is excreted in breast milk in concentrations that could affect the baby. Therefore, if the use of mexiletine is considered essential for the mother, should be considered an alternative method for infant feeding.