Drug interactions
Pexidartinib + Sulphasalazine
Severity: Major
Pexidartinib and Sulphasalazine: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Pexidartinib carries a boxed warning for serious and potentially fatal liver injury, and sulfasalazine can also cause hepatotoxicity. Using both increases the chance of liver injury.
What this interaction means in plain words
Pexidartinib and Sulphasalazine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Pexidartinib belongs to Oncology; Sulphasalazine belongs to Gastrointestinal Tract.
Why it happens
Additive hepatotoxicity from two agents that can each cause liver injury.
What to do
Avoid the combination if possible. If both are needed, check liver tests at baseline and frequently, and stop treatment if liver injury develops.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Sulphasalazine
- Deferiprone + Sulphasalazine Major
- Sepiapterin + Sulphasalazine Major
- Acalabrutinib + Sulphasalazine Moderate
- Aceclofenac + Sulphasalazine Moderate
- Acetazolamide + Sulphasalazine Moderate
- Asciminib + Sulphasalazine Moderate
Other interactions of Pexidartinib
Frequently asked questions
Can I take Pexidartinib with Sulphasalazine?
MediHelp rates the interaction as major. Pexidartinib and Sulphasalazine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Pexidartinib carries a boxed warning for serious and potentially fatal liver injury, and sulfasalazine can also cause hepatotoxicity. Using both increases the chance of liver injury.
How serious is the interaction between Pexidartinib and Sulphasalazine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination if possible. If both are needed, check liver tests at baseline and frequently, and stop treatment if liver injury develops.
What other medicines interact with Sulphasalazine?
MediHelp also lists interactions of Sulphasalazine with, for example, Deferiprone, Sepiapterin, Acalabrutinib. The full list is on the Sulphasalazine page.
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