Active Ingredient

Itraconazole

Itraconazole is an antifungal medication used to treat various fungal infections. It works by stopping the growth of fungi, helping to clear up infections.

This medication is often prescribed when common infections like athlete’s foot or yeast infections do not respond to other treatments.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Itraconazole Brands

Sporanox

Strengths 100mg

Itraconazole Uses

Itraconazole is used to treat a variety of fungal infections in the body.

Fungal infections of the nails
Yeast infections of the mouth or throat
Fungal infections of the lungs
Systemic fungal infections

How Itraconazole Works

Itraconazole works by interfering with the cell membrane of fungi, which is essential for their survival. This prevents the fungi from growing and multiplying.

As an antifungal agent, it targets specific enzymes that are crucial for the synthesis of fungal cell membranes.

Common side effects of Itraconazole

Not everyone experiences side effects with itraconazole, and many side effects are mild and temporary.

Nausea
Headache
Stomach upset
Dizziness
Rash
Fatigue

If you experience any serious or persistent side effects, contact your doctor.

Frequently Asked Questions

What is itraconazole used for?

Itraconazole is used to treat various fungal infections, including those affecting the nails, mouth, throat, and lungs.

How long does itraconazole take to work?

The time itraconazole takes to work can vary depending on the type and severity of the infection. Consult your doctor for more information.

Can I drink alcohol while taking itraconazole?

It is advisable to avoid large amounts of alcohol while taking itraconazole, as it may increase the risk of side effects.

Are there any interactions with other medications?

Yes, itraconazole can interact with other medications. Inform your doctor about all the medicines you are taking.

Is itraconazole safe for everyone?

Itraconazole may not be suitable for people with certain health conditions, such as heart problems. Always consult your doctor before use.