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List of Medications

Gentian Violet

Gentian violet is a custom pharmacy drug classified as an antifungal and is used to treat various fungal infections of the mouth, such as thrush, and of the skin, such as athlete's foot and ringworm. Gentian violet can also be used to prevent infection in minor scrapes and cuts due to its antibacterial effect.


Your doctor may prescribe gentian violet in a solution form. If applying to exterior skin, always make sure the area is clean and dry: cleanse the intended area of application and allow sufficient time for it to dry. Apply gentian violet sparingly so as to allow just enough coverage for the application area. Do not bandage or apply gauze, etc. to the area as this may cause unnecessary skin irritation.

If you are planning to use gentian violet for oral application such as in the treatment of oral thrush, consult with your doctor and get specific instructions. It is important to never swallow gentian violet, so ask your doctor about techniques for proper application within the mouth.


Many patients have seemingly no adverse reaction to the use of gentian violet, but side effects are always possible. Contact your doctor right away if you experience any side effects that seem to be lingering or getting stronger. Some side effects that are more general and commonly seen are:

At Site of Application:

  • Irritation
  • Redness
  • Swelling

Severe Side Effects:

There could be severe side effects with the use of gentian violet, as with the use of any drug or medication, etc. Watch for severe side effects and get medical help immediately if you encounter any side effect that feels severe.

Possible Severe Side Effects:

  • Infection (tenderness and/or pus)
  • Sores (especially be aware if treated area is in a skin fold)

Allergic Reaction:

  • Swelling (especially lips, face, and/or tongue and throat)
  • Severe Dizziness
  • Trouble Breathing
  • Rash

NOTE: Allergic reactions are very serious and require immediate medical attention. If you think you are experiencing any allergic reaction symptoms listed above, or otherwise, do not delay get medical treatment immediately.


Anyone considering the use of any new drug or medication is advised to undergo a full medical review with his or her primary care doctor before beginning use.

Gentian violet use may be contraindicated for anyone who has any of the following:

  • Vaginal Irritation
  • Canker Sores
  • Allergies to Triphenylmethane Analogues
  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA