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Eflornithine Side Effects

Applies to eflornithine: oral tablet.

Important warnings This medicine can cause some serious health issues

Use only as directed.

Tell your doctor if you use other medicines or have other medical conditions or allergies.

Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

Your cancer treatments may change, be delayed, or permanently discontinued if you have certain side effects.

Common side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For healthcare professionals

Applies to eflornithine: oral tablet.

General adverse events

The most frequently reported side effects included allergic rhinitis, conjunctivitis, cough, diarrhea, hearing loss, otitis media, pneumonia, pyrexia, skin infection, sinusitis, upper respiratory tract infection, urinary tract infection, and vomiting.

The most frequently reported grade 3 or 4 laboratory abnormalities included decreased hemoglobin, decreased neutrophils, increased ALT, and increased AST.[Ref]

Dermatologic

Gastrointestinal

Diarrhea included colitis.

Hematologic

Hepatic

Musculoskeletal

Ocular

Other

Respiratory

Genitourinary

References

1. (2023) "Product Information. Iwilfin (eflornithine)." US WorldMeds LLC

Further information

Eflornithine side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.