METHYLROSANILINIUM CHLORIDE = GENTIAN VIOLET = GV = CRYSTAL VIOLET

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    Carcinogenic effects have been demonstrated in animals. As a precaution, this product should not be used in humans if an alternative is available.

     

    Therapeutic action

    • Antifungal, weak antiseptic, drying agent

    Indications

    • Oropharyngeal candidiasis, mammary candidiasis in nursing mothers
    • Certain wet skin lesions (impetigo, dermatophytosis oozing lesions)

    Forms and strengths

    • Powder to be dissolved

    Preparation

    • Dissolve 2.5 g of powder (= one half-teaspoon) in 1 litre of clear water (boiled a few minutes and cooled) to obtain a 0.25% solution.
    • Shake well and leave to settle. Pour carefully into another bottle to eliminate any possible sediment.
    • Before preparation, carefully wash both the bottle for dilution and the storage bottle with hot water and leave to dry.

    Use

    • One application 2 times daily for a few days

    Contra-indications, adverse effects, precautions

    • Do not apply to wounds or ulcerations.
    • Do not apply to the face or genital mucous membranes.
    • May cause:
      • irritation, ulcerations, allergic reactions;
      • persistent staining of the skin.
    • The solution should not be swallowed.
    • The use of cooking oil or vaseline around lips before swabbing can limit the risk of skin coloration.
    • Stop treatment in the event of allergic reactions or if new ulcerations develop.
    • In the event of product entering the eye, rinse with plenty of water.
    • Avoid contact with clothes (causes permanent staining of fabrics).

    Remarks

    • Gentian violet is no longer included in the WHO list of essential medicines.

    Storage

     
     
    • Powder to be dissolved: unlimited
    • Diluted solution: maximum 1 week