Drug interactions
Escitalopram + Paroxetine
Severity: Major
Escitalopram and Paroxetine: major interaction.
Last updated Sources: US FDA label
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
Two SSRIs together provide additive serotonergic effects and raise the risk of serotonin syndrome without proven benefit. Escitalopram also has dose-related QT prolongation.
What this interaction means in plain words
Escitalopram and Paroxetine 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.
Escitalopram belongs to Central Nervous System; Paroxetine belongs to Central Nervous System.
Why it happens
Additive serotonin reuptake inhibition with additive QTc effects.
What to do
Avoid combining; use a single SSRI and cross-taper when changing. If overlap occurs, monitor for serotonin toxicity and consider an ECG.
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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References
Other interactions of Paroxetine
- Isocarboxazid + Paroxetine Contraindicated
- Methylene blue + Paroxetine Contraindicated
- Paroxetine + Phenelzine Contraindicated
- Paroxetine + Pimozide Contraindicated
- Paroxetine + Procarbazine Contraindicated
- Paroxetine + Selegiline Contraindicated
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 Paroxetine?
MediHelp rates the interaction as major. Escitalopram and Paroxetine 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. Two SSRIs together provide additive serotonergic effects and raise the risk of serotonin syndrome without proven benefit. Escitalopram also has dose-related QT prolongation.
How serious is the interaction between Escitalopram and Paroxetine?
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 combining; use a single SSRI and cross-taper when changing. If overlap occurs, monitor for serotonin toxicity and consider an ECG.
What other medicines interact with Paroxetine?
MediHelp also lists interactions of Paroxetine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Paroxetine page.
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