guaifenesin + levomenthol · Medicine question

Does the guaifenesin in Benylin Chesty Coughs (Non-Drowsy) pass into breast milk?

Name: Does the guaifenesin in Benylin Chesty Coughs (Non-Drowsy) pass into breast milk?
Published: 2026-11-08T01:52:09.951Z

iatroX medicinesPublished 8 November 2026

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Guaifenesin in Benylin Chesty Coughs (Non-Drowsy) passes into breast milk in small amounts, and information about its effects on newborns and infants is insufficient.

Sources for this answer

Benylin Chesty Coughs (Non-Drowsy)McNeil Products Ltd · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 19Document updated 24 February 2022

Sources checked 8 November 2026

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