Fluconazole For Dogs: Uses, Dosage, & Side Effects

Bottle of Pfizer's Diflucan fluconazole used in treatment of cryptococcal meningitis fungal brain infection associated w. HIV AIDS-causing virus. (Photo by James Keyser/The LIFE Images Collection/Getty Images)

(Picture Credit: James Keyser/The LIFE Images Collection/Getty Images)

Fluconazole is an anti-fungal medication that is often used to treat yeast fungal infections in dogs. It is most commonly used to treat skin infections, but it can also be used to treat fungal infections in organs or elsewhere in dogs’ bodies. Though it is not approved for veterinary use by the FDA, fluconazole is available with the prescription of a veterinarian and often goes by the brand names Diflucan or Trican. If your veterinarian prescribes fluconazole, it is important that you strictly follow their instructions for administering it to your dog. Here is what you should know about the uses, dosage, and side effects of fluconazole in dogs.

Uses Of Fluconazole For Dogs

This micrograph shows histopathologic changes that reveal the presence of the fungal agent Blastomyces dermatitidis, 1978. Blastomycosis, caused by Blastomyces dermatitidis, is a flu-like condition with fever, chills, productive cough, myalgia, arthralgia and pleuritic chest pain. There are 1-2 cases per 100,000 people in areas with endemic disease. Image courtesy CDC/Dr. Libero Ajello. (Photo by Smith Collection/Gado/Getty Images).

(Picture Credit: Smith Collection/Gado/Getty Images).

Fluconazole is most commonly used to treat skin infections in dogs, as well as infections of the nail beds. It is often chosen for treatment when other anti-fungal medications fail, as fluconazole is effective at fighting off more serious infections and often has fewer side effects. It can be used to treat ringworm, though veterinarians often reserve the drug for infections that are more intense, such as Blastomycosis and Histoplasmosis.

Fluconazole is effective in treating infections in other areas of the body, as well. It is sometimes used to treat urinary infections or infections of the lungs and organs that may occur when dogs inhale fungus from infected soil. It is also chosen above other medications to treat fungal infections of the central nervous system because the drug is able to cross the blood-brain barrier. This allows the medication to travel to where it is needed more effectively.

Dosage Of Fluconazole For Dogs

Feeding Cocker Spaniel-Poodle cross puppy with dog treat, close-up

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The usual dosage of fluconazole for dogs varies widely depending on the condition being treated. A veterinarian may prescribe between 5.5 mg and 22 mg per pound of a dog’s weight, and it may have to be administered once every 12 to 24 hours. Fluconazole comes in tablet form and should be given orally with or without food.

If your veterinarian prescribes fluconazole for your dog, it is important that you stick to their instructions and continue giving your dog the medication for the full length of time that they prescribe. Fluconazole is absorbed by the body quickly, but you are not likely to see symptoms improve for one to two weeks, and it may take several months before the condition disappears entirely.

Side Effects Of Fluconazole In Dogs

Portrait Of Shih Tzu With Protective Cone Collar after a Operation.

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Side effects of fluconazole in dogs haven’t been thoroughly studied, though several side effects have been observed in humans and some similar side effects have been seen in dogs. Here are a few common side effects associated with fluconazole.

As with all medications, there is a risk of allergic reaction to fluconazole in dogs which may lead to anaphylaxis. If you see the signs of an allergic reaction, such as itchiness, hives, swelling, difficulty breathing, or other symptoms, contact your veterinarian right away. Should side effects become severe or cause you concern, consult your veterinarian so they can adjust the dosage or seek an alternative form of treatment.

Has your dog ever been treated with fluconazole? Was it effective? Let us know in the comments below!