Is Gentian Violet safe while breastfeeding?
Here is what LactMed, the Drugs and Lactation Database published by the U.S. National Institute of Child Health and Human Development (NICHD), reports about Gentian Violet. The text below is quoted from that source — it is not our own verdict.
Summary of use during breastfeeding
Gentian violet (crystal violet) was used in the past to treat oral and nipple thrush during breastfeeding. Gentian violet is potentially toxic to the mucous membranes, causing oral ulceration with partial airway obstruction in one case,[1-6] and potentially tattooing the skin. It can also interact with DNA,[7] is carcinogenic and mutagenic in animals, and occasionally causes allergic sensitization, with cross-reactions to other triphenylmethane dyes.[8] Its use has been severely curtailed by authorities in Australia, Canada, England and France.[9-11] It is also very messy, staining skin and clothing. A 2001 survey of the members of the Academy of Breastfeeding Medicine (ABM) found that gentian violet is rarely (1 to 2% of respondents) used by breastfeeding experts for initial treatment of oral thrush and is very infrequently (3 to 4% of respondents) used for recurrent or persistent thrush.[10] ABM guidelines for treating Candida infection of the nipples state that an aqueous solution of gentian violet of less than 0.5% can be used for no more than 7 days on the nipple.[9] However, safer alternatives for treating thrush are available.[12]
Effects on the breastfed infant
Gentian violet has caused oral ulceration in breastfed infants treated with 1% or 2% solution applied to the mouth and tongue for thrush.[3-5]
A 2-week-old exclusively breastfed infant was treated for oral thrush with aqueous 1% gentian violet solution twice daily for 1 day. The parents discontinued it because they thought it was causing airway discomfort. After 2 days, it was restarted at 4 times a day. Cough and difficulty feeding developed after 1 day and the infant was then admitted to the hospital, ultimately requiring intubation.[6]
Effects on milk supply
Relevant published information was not found as of the revision date.
Alternatives LactMed lists
Source: Drugs and Lactation Database (LactMed), National Institute of Child Health and Human Development (NICHD), via NCBI Bookshelf, record “Gentian Violet” (LM951). LactMed on NCBI Bookshelf. LactMed is a registered trademark of the U.S. Department of Health and Human Services.
Educational summary of an authoritative source — not medical advice. Never start, stop, or change a medicine while breastfeeding without confirming with your doctor.