Drug interactions
Pralatrexate + Probenecid
Severity: Major
Pralatrexate and Probenecid: 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
Probenecid can reduce the renal clearance of pralatrexate, increasing exposure and the risk of toxicities such as mucositis and myelosuppression.
What this interaction means in plain words
Pralatrexate and Probenecid 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.
Pralatrexate belongs to Oncology; Probenecid belongs to Genitourinary.
Why it happens
Probenecid inhibits the renal tubular secretion of pralatrexate via organic anion transporters.
What to do
Avoid concurrent use if possible. If it is necessary, monitor closely for mucositis and cytopenias and consider holding or reducing pralatrexate per labeling.
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 Probenecid
- Ketorolac intranasal + Probenecid Contraindicated
- Ketorolac + Probenecid Contraindicated
- Baricitinib + Probenecid Major
- Ceftazidime / avibactam + Probenecid Major
- Methotrexate + Probenecid Major
- Probenecid + Roxadustat Major
Other interactions of Pralatrexate
Frequently asked questions
Can I take Pralatrexate with Probenecid?
MediHelp rates the interaction as major. Pralatrexate and Probenecid 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. Probenecid can reduce the renal clearance of pralatrexate, increasing exposure and the risk of toxicities such as mucositis and myelosuppression.
How serious is the interaction between Pralatrexate and Probenecid?
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 concurrent use if possible. If it is necessary, monitor closely for mucositis and cytopenias and consider holding or reducing pralatrexate per labeling.
What other medicines interact with Probenecid?
MediHelp also lists interactions of Probenecid with, for example, Ketorolac intranasal, Ketorolac, Baricitinib. The full list is on the Probenecid page.
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