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Gentian violet (crystal violet, Methyl Violet 10B, hexamethyl pararosaniline chloride) is an antifungal agent. Typically prepared as a weak (e.g. 1%) solution in water, is painted on skin or gums to treat or prevent fungal infections. Gentian violet does not require a doctor's prescription (in the US), but is not easily found in drug stores. Tampons treated with gentian violet are sometimes used for vaginal applications.
Gentian violet is also known as Andergon, Aniline violet, Axuris, Badil, Basic Violet 3, Brilliant Violet 58, Gentiaverm, Hexamethyl-p-rosaniline chloride, Meroxylan, Meroxyl, Methylrosalinide chloride, Methyl Violet 10BNS, Pyoktanin, Vianin, Viocid, and Viola Crystallina.
Applications
Commonly used for
- Tinea; e.g. Athlete's foot, jock itch, and ringworm
- Candida albicans and related infections; e.g. thrush, yeast infections
- Mouth ulcers*
Engineering students of Queen's University, Kingston, Ontario, Canada traditionally use this substance to dye their whole bodies purple in preparation for homecoming celebrations and frosh week. Additionally, The golden leather engineering jacket, also known as Golden Party Armour or GPA, is purpled using this dye.
In forensics, gentian violet was used to develop fingerprints.
Precautions
Gentian violet's worst common side effect is staining skin and cloth, but if used on ulcerations or open wounds it can cause tattooing. It is generally considered safe for use on children and breastfeeding mothers. It has even been applied to the mouth and lips of premature infants, and has a long history of safe use. La Leche League and others have recommended it even for thrush on the nipple.
Web Site References
Gentian Violet and Thrush
Popular culture
In Catch-22, the medics are portrayed as using gentian violet on feet and gums as a universal panacea.
"Gentian violet"