Itraconazole (itraconazole) — Uses, Dosage, Side Effects & Safety

Drug class: Antifungal (Triazole antifungal agent)

Overview

Itraconazole is a prescription antifungal medication used to treat a variety of fungal infections in the body, including those affecting the lungs, mouth, throat, toenails, fingernails, and other organs. It is commonly prescribed for conditions such as aspergillosis, blastomycosis, histoplasmosis, and onychomycosis (fungal nail infections). Itraconazole works by stopping the growth of fungi. It does this by interfering with the production of ergosterol, an essential component of fungal cell membranes. Without ergosterol, the fungal cell membrane becomes weakened, leading to the death of the fungus. Key points for patients: Always take itraconazole exactly as prescribed. The absorption of the drug can be affected by food and stomach acidity, so follow your healthcare provider’s instructions carefully. Inform your doctor about all other medications you are taking, as itraconazole can interact with many drugs. Notify your healthcare provider if you experience symptoms such as swelling, shortness of breath, or signs of liver problems.

For related Itraconazole guidance, compare Isavuconazole, Fluconazole and Voriconazole.

Frequently Asked Questions about Itraconazole

What conditions does itraconazole treat?

Itraconazole is used to treat a range of fungal infections, including aspergillosis, blastomycosis, histoplasmosis, and onychomycosis (fungal nail infections).

How long does it take for itraconazole to work?

The time to improvement depends on the type and severity of infection. Nail infections may require several months for full results, while other infections may improve within days to weeks.

Can I take itraconazole with food?

Capsules should be taken with food to improve absorption. The oral solution should be taken on an empty stomach.

Is itraconazole safe during pregnancy?

Itraconazole is generally not recommended during pregnancy unless the potential benefit justifies the risk to the fetus. Discuss with your doctor if you are pregnant or planning to become pregnant.

What should I do if I experience side effects?

Contact your healthcare provider if you experience mild side effects. Seek immediate medical attention for severe reactions such as difficulty breathing, swelling, or signs of liver problems.

Can itraconazole interact with other medications?

Yes, itraconazole has many potential drug interactions. Always inform your healthcare provider about all medications, supplements, and herbal products you are taking.

How should itraconazole be stored?

Store itraconazole at room temperature, away from moisture and heat. Keep the medication out of reach of children.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.