Drug interactions
Escitalopram + Nefazodone
Severity: Major
Escitalopram and Nefazodone: 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
Nefazodone inhibits serotonin reuptake and CYP3A4, so adding it to escitalopram can raise serotonergic activity and escitalopram levels. This increases the risk of serotonin syndrome and QT prolongation.
What this interaction means in plain words
Escitalopram and Nefazodone 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.
Why it happens
Additive serotonergic effects, together with CYP3A4 inhibition by nefazodone increasing escitalopram exposure.
What to do
Avoid using both together. If switching, taper one drug and allow an appropriate interval, monitoring for serotonin toxicity.
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 Escitalopram
- Cisapride + Escitalopram Contraindicated
- Citalopram + Escitalopram Contraindicated
- Escitalopram + Isocarboxazid Contraindicated
- Escitalopram + Methylene blue Contraindicated
- Escitalopram + Phenelzine Contraindicated
- Escitalopram + Pimozide Contraindicated
Frequently asked questions
Can I take Escitalopram with Nefazodone?
MediHelp rates the interaction as major. Escitalopram and Nefazodone 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. Nefazodone inhibits serotonin reuptake and CYP3A4, so adding it to escitalopram can raise serotonergic activity and escitalopram levels. This increases the risk of serotonin syndrome and QT prolongation.
How serious is the interaction between Escitalopram and Nefazodone?
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 using both together. If switching, taper one drug and allow an appropriate interval, monitoring for serotonin toxicity.
What other medicines interact with Escitalopram?
MediHelp also lists interactions of Escitalopram with, for example, Cisapride, Citalopram, Isocarboxazid. The full list is on the Escitalopram page.
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