Fostamatinib Side Effects
Medically reviewed by Drugs.com. Last updated on Apr 4, 2025.
Applies to fostamatinib: oral tablets.
Side effects include:
Adverse effects (≥5%) include diarrhea, hypertension, nausea, respiratory infection, dizziness, increases in ALT/AST, rash, abdominal pain, fatigue, chest pain, neutropenia.
For healthcare professionals
Applies to fostamatinib: oral tablet.
Hematologic adverse events
- Common (1% to 10%): Neutropenia[Ref]
Hepatic
- Very common (10% or more): ALT increased (11%)
- Common (1% to 10%): AST increased[Ref]
Respiratory
- Very common (10% or more): Respiratory infection (11%)[Ref]
Other
- Common (1% to 10%): Fatigue[Ref]
Nervous system
- Very common (10% or more): Dizziness (11%)[Ref]
Cardiovascular
- Very common (10% or more): Hypertension (28%)[Ref]
Dermatologic
- Common (1% to 10%): Rash (e.g., rash erythematous, rash macular)[Ref]
Gastrointestinal
- Very common (10% or more): Diarrhea (31%), nausea (19%)
- Common (1% to 10%): Abdominal pain[Ref]
See also:
References
1. (2018) "Product Information. Tavalisse (fostamatinib)." Rigel Pharmaceuticals
More about fostamatinib
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Further information
Fostamatinib 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.
