flecainide acetate · Medicine question

Does flecainide acetate pass into human breast milk?

iatroX medicinesPublished 8 November 2026

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Flecainide acetate passes into human breast milk at concentrations similar to maternal blood concentrations and should only be used during lactation if the benefit outweighs the risks.

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Flecainide Acetate 100 mg tabletsAurobindo Pharma - Milpharm Ltd. · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 6Document updated 18 June 2026

Sources checked 8 November 2026

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