Itraconazole
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Reviewed on September 17, 2025. by
Dr Alexandra Cristina Cowell
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Next review due on
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Dr Alexandra Cristina Cowell

Last updated on Sep 24, 2025.

Effective antifungal capsules.

Itraconazole is an oral antifungal that stops fungal growth. It’s usually prescribed for people with moderate to severe tinea versicolor.

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100mg
$80.95
  • Prices include:
    Express shipping

    2-5 day shipping by secure courier

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Itraconazole Itraconazole

What is Itraconazole?

Itraconazole is an oral antifungal that helps treat moderate to severe tinea versicolor, or cases where the symptoms haven’t cleared with topical treatments.

Tinea versicolor, also known as pityriasis versicolor, is a fungal skin infection. The symptoms typically include dry, scaly patches on your skin that are discolored. Although it isn’t painful, the skin symptoms it causes can make people self-conscious.

How does Itraconazole work?

Itraconazole is an antifungal that prevents ergosterol from being made. Ergosterol is an essential component of the fungal cell membrane. Without it, fungal cells can’t function properly and develop, which eventually causes them to expire.[1]

Will I get side effects from taking Itraconazole?

Yes, you might get side effects when taking Itraconazole, although not everyone will get them. Common side effects include:

  • Nausea
  • Vomiting
  • Rash
  • Stomach ache
  • Headache

For more information, check the package leaflet that comes with your medicine.

What forms does Itraconazole come in?

Itraconazole comes as an oral capsule. As it works systemically, it’s more effective than topical antifungals,[2] so you’ll use it for a shorter duration compared to creams.

How does Itraconazole compare with fluconazole?

There is data available comparing the two for tinea versicolor[3], but itraconazole was given as a single 400mg dose in this study. That doesn’t reflect how it’s always prescribed in practice, as it can also be prescribed as 200mg twice a day for seven days.

In the study, which compared single doses of itraconazole and fluconazole, the results showed more patients in the fluconazole group (65%) were cured compared to those using itraconazole (20%). Additionally, more patients relapsed in the itraconazole group than the fluconazole group.

But this may not be an accurate representation of how well itraconazole would work in a realistic setting, as sometimes it’s prescribed as 200 mg daily for a week[4], rather than a single-dose.

What doses of Itraconazole are there?

Itraconazole comes as a 100 mg tablet. The dose for tinea versicolor is either:

  • 200 mg daily for seven days or:
  • 400mg single dose.

Treatment courses can be repeated monthly if needed.

Treated trusted source:

  1. Kurn H, Wadhwa R. Itraconazole. [Updated 2023 Apr 17]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
  2. Ahmed, et al. (2017). Comparison of oral itraconazole versus topical clotrimazole in treatment of pityriasis versicolor. 67. 458-61.
  3. Partap, R., et al. (2004). Single-Dose Fluconazole versus Itraconazole in Pityriasis versicolor. Dermatology, 208(1), pp.55–59.
  4. Delescluse, J. (2008). Itraconazole in tinea versicolor: A review. Journal of the American Academy of Dermatology, [online] 23(3), pp.551–554.
Dr Alexandra Cristina Cowell
This page was medically reviewed by Dr Alexandra Cristina Cowell on September 17, 2025. Next review due on September 17, 2028.

How we source info.

When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.

Itraconazole Itraconazole

How to take Itraconazole

Swallow the capsules with an acidic drink or food for better absorption, such as orange juice or pineapple. It’s best to take it at the same time every day for maximum effectiveness.

 

Dr Alexandra Cristina Cowell
This page was medically reviewed by Dr Alexandra Cristina Cowell on September 17, 2025. Next review due on September 17, 2028.

How we source info.

When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.

Itraconazole Itraconazole

Itraconazole isn’t suitable for everyone, and there are some things that you need to be aware of when taking it.

Here’s all the official info on it. If anything is unclear, let our doctor know, and they can talk with you about it.

Itraconazole Itraconazole

Itraconazole: FAQ

Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.

How does Itraconazole compare with other medicines for tinea versicolor?

Answer:
The first line of treatment for tinea versicolor are topical antifungals, like clotrimazole and ketoconazole. These are applied to the affected area daily until the infection clears.

But if you don't respond well to topical treatments, your doctor may suggest using oral antifungals, like Itraconazole. Oral treatments are usually more effective as they work systemically.

You can also get antifungal treatments in different forms, such as shampoo for scalp infections.

How long does it take for Itraconazole to work?

Answer:
It can take around four weeks for the infection to clear, but this doesn't mean you will need to take medication for the entire four weeks.

Studies have shown that a cumulative dose of 1000 mg is sufficient to clear the infection. So taking 200 mg daily for seven days is enough, as the drug accumulates in the body and continues to work even after you stop taking it.[1]

One study found that the fungus was eradicated in 80–90% of patients. But it’s important to note that it may take longer for your skin color to change and return to normal.[1]

Does Itraconazole interact with anything?

Answer:
Itraconazole can interact with several medications, including migraine treatments, antibiotics such as lymecycline, steroids, and more.[2]

If you’re taking any medications, be sure to inform your doctor so they can check whether Itraconazole is safe for you.

Can I drink alcohol while taking Itraconazole?

Answer:
You should avoid alcohol while taking Itraconazole, as it can increase liver toxicity and the risk of associated side effects.

Can I get Itraconazole through private health insurance?

Answer:
Private healthcare should cover tinea versicolor treatment, but there may be some that only cover specific brands. If you want to get Itraconazole with private health insurance, check your plan to make sure it’s covered. If it’s not covered, you can get Itraconazole from an online prescription and pharmacy service, but you’ll have to cover the cost yourself.

Treated trusted source:

  1. Faergemann, J., et al. (2002). Efficacy of Itraconazole in the Prophylactic Treatment of Pityriasis (Tinea) Versicolor. Archives of Dermatology, 138(1).
  2. NICE. (n.d.). Itraconazole interactions.

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