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Insight Horizon Media

What are the side effects of itraconazole in dogs?

Author

Robert Miller

Published Mar 02, 2026

What are the side effects of itraconazole in dogs?

Potential Side-Effects of Itraconazole The most-common side effects are mild nausea, decrease in appetite, vomiting, and diarrhea. If the veterinary patient shows signs of jaundice, then the veterinarian should be contacted immediately.

How long does itraconazole take to work in dogs?

Serum itraconazole concentrations reached steady state by 14 days of treatment.

What are the most common potential side effects of itraconazole?

More common

  • Decreased urine output.
  • increased thirst.
  • irregular heartbeat.
  • mood changes.
  • muscle pain or cramps.
  • numbness or tingling in the hands, feet, or lips.
  • unusual tiredness or weakness.

Is itraconazole safe for puppies?

The medication should only be given to the animal for which it was prescribed and never to another pet or person. Because it is passed through the milk, Itraconazole is generally not prescribed to pregnant pets.

How do you treat Malassezia dermatitis in dogs?

Anti-fungal shampoos are the mainstay of treatment and are usually very effective. When shampooing is not possible, anti-fungal wipes, rinses and creams can be effective. Anti-fungal medications are also common components of medicated ear drops to use for dogs and cats with Malassezia infections in their ears.

How do dogs get blastomycosis?

Dogs become infected after breathing in Blastomyces fungal spores in the environment. Those infected can become extremely ill, commonly with respiratory disease, and many will die without treatment. Blastomycosis fungal infection in dogs is common. Humans can also become infected in the same manner as dogs.

Can dogs survive blastomycosis?

What is the prognosis for my dog? Prognosis is good for many cases of blastomycosis infection with recovery rates between 50-75%. “…a dog in poor condition or with advanced disease is less likely to survive.”

What are the symptoms of blastomycosis in dogs?

The clinical symptoms of blastomycosis may vary with organ involvement which can include coughing, skin lesions, anorexia, depression, fever, weight loss, shortness of breath, exercise intolerance, enlarged lymph nodes, eye disease, or lameness.

What is itraconazole used for in dogs?

Itraconazole (brand names: Itrafungol®, Sporanox®, Onmel®) is a systemic antifungal medication used to treat fungal infections such as ringworm and blastomycosis. Its use in dogs, small mammals, and some exotics to treat fungal infections is ‘off label’ or ‘extra label’.

Should itraconazole be taken with food?

Itraconazole capsules and tablets should be taken with a full meal. The oral liquid is best taken on an empty stomach. Take the tablets at the same time each day.

Are fungal infections in dogs contagious?

Localized Fungal Infections in Dogs Ringworm in dogs is extremely contagious and spreads through direct contact with the fungus. This can happen when a dog comes in direct contact with an infected animal, person, or object such as a couch, brush, bedding, or rug. Ringworm can affect your dog’s skin, fur, or nails.

What kills Malassezia yeast on dogs?

We prefer the four percent chlorhexidine shampoos or Malaseb® shampoo as these both strip skin oil and kill yeast; however, other anti-yeast products include those containing selenium, vinegar, miconazole, ketoconazole and more.