Drug interactions
Methotrexate + Momelotinib
Severity: Moderate
Methotrexate and Momelotinib: moderate 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
Momelotinib inhibits BCRP, a transporter that handles methotrexate. Methotrexate exposure may rise, increasing the risk of myelosuppression and other toxicity.
What this interaction means in plain words
Methotrexate and Momelotinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Methotrexate belongs to Oncology; Momelotinib belongs to Oncology.
Why it happens
BCRP inhibition may reduce methotrexate efflux and clearance.
What to do
Monitor blood counts and liver and renal function. Reduce the methotrexate dose if toxicity develops.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Methotrexate
- Acitretin + Methotrexate Contraindicated
- Adenovirus types 4 and 7 live + Methotrexate Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Methotrexate Contraindicated
- Ketorolac + Methotrexate Contraindicated
- Measles mumps and rubella vaccine live + Methotrexate Contraindicated
- Measles mumps and rubella vaccine + Methotrexate Contraindicated
Other interactions of Momelotinib
- Atorvastatin + Momelotinib Moderate
- Clarithromycin + Momelotinib Moderate
- Cyclosporin + Momelotinib Moderate
- Daunorubicin + Momelotinib Moderate
- Erythromycin + Momelotinib Moderate
- Fluvastatin + Momelotinib Moderate
Frequently asked questions
Can I take Methotrexate with Momelotinib?
MediHelp rates the interaction as moderate. Methotrexate and Momelotinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Momelotinib inhibits BCRP, a transporter that handles methotrexate. Methotrexate exposure may rise, increasing the risk of myelosuppression and other toxicity.
How serious is the interaction between Methotrexate and Momelotinib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts and liver and renal function. Reduce the methotrexate dose if toxicity develops.
What other medicines interact with Methotrexate?
MediHelp also lists interactions of Methotrexate with, for example, Acitretin, Adenovirus types 4 and 7 live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Methotrexate page.
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