Breast milk offers babies essential nutrients optimal for immune protection, growth, and development. While most medicines taken by breastfeeding mothers pass into breast milk in small amounts and rarely affect the baby, it’s important to consult a healthcare provider about the safety of any medicines during breastfeeding. Prescription and over-the-counter (OTC) medicines are generally safe, but dosage adjustments or alternative forms may reduce transfer to breast milk. Monitoring the baby for possible side effects like rash or drowsiness is advised.

The factsheet provides guidance on common conditions during breastfeeding.

Paracetamol and certain NSAIDs are suitable for pain relief, while low-dose aspirin is safe but high doses should be avoided.

For allergies and hayfever, non-sedating antihistamines like loratadine and topical treatments are preferred; sedating antihistamines are not recommended.

Cold and flu symptoms can be treated with single-ingredient OTC medicines; nasal sprays and steam inhalation are useful for congestion, but oral decongestants should be avoided due to reduced milk supply.

Safe treatments are offered for other conditions including constipation, diarrhoea, heartburn, head lice, scabies, mouth ulcers, vaginal thrush, haemorrhoids, and worm infections, with emphasis on consulting healthcare providers when necessary.

The factsheet emphasises the importance of personalised medical advice and encourages discussion with doctors or pharmacists before starting or stopping any medication while breastfeeding. It also highlights preventative measures where possible and provides contact details for further support from the Royal Women’s Hospital Medicines Information Service. This guidance aims to ensure safe and effective treatment without compromising breastfeeding benefits.