Drug interactions
Naproxen + Venlafaxine
Severity: Major
Naproxen and Venlafaxine: 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
Venlafaxine inhibits serotonin reuptake, impairing platelet aggregation, and combined with naproxen increases the risk of gastrointestinal and other bleeding.
What this interaction means in plain words
Naproxen and Venlafaxine 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.
Naproxen belongs to Musculoskeletal; Venlafaxine belongs to Central Nervous System.
Why it happens
Reduced platelet serotonin from reuptake inhibition adds to NSAID platelet inhibition and gastric mucosal injury.
What to do
Avoid combination where possible or add a proton pump inhibitor for gastroprotection. Monitor for melena, hematemesis and anemia.
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 Naproxen
- Ketorolac intranasal + Naproxen Contraindicated
- Ketorolac + Naproxen Contraindicated
- Aceclofenac + Naproxen Major
- Acemetacin + Naproxen Major
- Acetylsalicylic acid + Naproxen Major
- Alteplase + Naproxen Major
Other interactions of Venlafaxine
- Isocarboxazid + Venlafaxine Contraindicated
- Methylene blue + Venlafaxine Contraindicated
- Phenelzine + Venlafaxine Contraindicated
- Procarbazine + Venlafaxine Contraindicated
- Rasagiline + Venlafaxine Contraindicated
- Safinamide + Venlafaxine Contraindicated
Frequently asked questions
Can I take Naproxen with Venlafaxine?
MediHelp rates the interaction as major. Naproxen and Venlafaxine 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. Venlafaxine inhibits serotonin reuptake, impairing platelet aggregation, and combined with naproxen increases the risk of gastrointestinal and other bleeding.
How serious is the interaction between Naproxen and Venlafaxine?
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 combination where possible or add a proton pump inhibitor for gastroprotection. Monitor for melena, hematemesis and anemia.
What other medicines interact with Naproxen?
MediHelp also lists interactions of Naproxen with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Naproxen page.
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