Ifosfamide and Mesna interaction

Ifosfamide and Mesna: the Ifosfamide prescribing label flags this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Ifosfamide (IFEX) label · effective 2024-12-02

Major

Hemorrhagic cystitis can be severe and can be reduced by the prophylactic use of mesna [see Warnings and Precautions (5.3) ] .

Boxed warningnames MesnaView label on DailyMed
Moderate

Administer mesna with IFEX to reduce the incidence and severity of urotoxicity [see Dosage and Administration (2.1) ] .

Warnings and precautionsnames MesnaView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.