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Isavuconazonium

Published: July 26, 2026Updated: July 26, 2026

Cresemba (isavuconazole) is a prescription azole antifungal medication used to treat serious invasive fungal infections in adults. It is specifically indicated for invasive aspergillosis and invasive mucormycosis, which are potentially life-threatening conditions that typically affect immunocompromised patients. Cresemba works by targeting and inhibiting the growth of fungi responsible for these serious infections.

Quick summary

Cresemba is an antifungal medication used to treat serious invasive fungal infections like aspergillosis and mucormycosis in adults.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 2026Editorial policy

Key facts at a glance

RxNorm
1608328
Generic
Cresemba
Class
brand-name
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Cresemba is used to treat invasive aspergillosis and invasive mucormycosis in adult patients. These are serious fungal infections that commonly occur in people with weakened immune systems, such as those undergoing chemotherapy, stem cell transplants, or with certain blood disorders.

Cresemba is an azole antifungal that works by inhibiting a fungal enzyme called lanosterol 14-alpha-demethylase, which is essential for producing ergosterol—a critical component of fungal cell membranes. By disrupting ergosterol synthesis, the medication impairs fungal cell growth and integrity.

Cresemba should only be prescribed by healthcare professionals experienced in managing invasive fungal infections. Common side effects may include nausea, vomiting, diarrhea, and liver enzyme elevations. It may interact with other medications and is contraindicated in patients with familial short QT syndrome. Regular monitoring of liver function may be required during treatment. Both oral and intravenous formulations are available.

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy