Cresemba

Generic name:isavuconazonium [ EYE-sa-vue-KOE-na-ZOE-nee-um ]
Drug class:Azole antifungals

Medically reviewed by Philip Thornton, DipPharm. Last updated on Feb 22, 2022.

What is Cresemba?

Cresemba is an antifungal medication that fights infections caused by fungus.

Cresemba is a prescription medicine used to treat infections caused by certain types of fungus (aspergillosis or mucormycosis) in patients 18 years of age and older.

It is not known if Cresemba is safe and effective in children under 18 years of age.

Cresemba is a available as an oral capsule and as an injection.

Warnings

You should not use Cresemba if you have a genetic heart rhythm disorder called short QT syndrome.

Many drugs can interact with isavuconazonium, and some drugs should not be used together. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all medicines you use, and those you start or stop using during your treatment with Cresemba.

Before taking this medicine

You should not use Cresemba if you are allergic to isavuconazonium, or if you have:

• a genetic heart rhythm disorder called short QT syndrome.

Many drugs can interact and cause dangerous effects. Some drugs should not be used together with Cresemba. Your doctor may change your treatment plan if you also use:

• carbamazepine;

• ketoconazole;

• phenobarbital;

• rifampin;

• ritonavir (at high doses); or

• St. John's wort.

To make sure Cresemba is safe for you, tell your doctor if you have ever had:

• liver disease;

• a heart rhythm disorder; or

• history of an allergic reaction to antifungal medicine, such as fluconazole, itraconazole, ketoconazole, posaconazole, or voriconazole.

Isavuconazonium may harm an unborn baby. Use effective birth control to prevent pregnancy while you are using this medicine and for at least 28 days after your last dose. Tell your doctor if you become pregnant.

You should not breastfeed while using isavuconazonium.

Cresemba is not approved for use by anyone younger than 18 years old.

How should I take Cresemba?

Take Cresemba exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose.

Isavuconazonium oral ...