Drug interactions
Methyldopa + Pexidartinib
Severity: Major
Methyldopa and Pexidartinib: 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 methyldopa is also a recognised cause of hepatotoxicity. Using both together may raise the likelihood or severity of liver injury.
What this interaction means in plain words
Methyldopa and Pexidartinib 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.
Methyldopa belongs to Cardiovascular; Pexidartinib belongs to Oncology.
Why it happens
Additive hepatotoxicity from two drugs that can independently injure the liver.
What to do
Avoid the combination where possible and choose another antihypertensive. If used together, monitor liver enzymes and bilirubin closely and stop the offending drug 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 Methyldopa
- Methyldopa + Tranylcypromine Contraindicated
- Iobenguane i + Methyldopa Major
- Lofexidine + Methyldopa Major
- Methyldopa + Pretomanid Major
- Methyldopa + Thioridazine Major
- Adrenaline-articaine + Methyldopa Moderate
Other interactions of Pexidartinib
Frequently asked questions
Can I take Methyldopa with Pexidartinib?
MediHelp rates the interaction as major. Methyldopa and Pexidartinib 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 methyldopa is also a recognised cause of hepatotoxicity. Using both together may raise the likelihood or severity of liver injury.
How serious is the interaction between Methyldopa and Pexidartinib?
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 where possible and choose another antihypertensive. If used together, monitor liver enzymes and bilirubin closely and stop the offending drug if liver injury develops.
What other medicines interact with Methyldopa?
MediHelp also lists interactions of Methyldopa with, for example, Tranylcypromine, Iobenguane i, Lofexidine. The full list is on the Methyldopa page.
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