Drug interactions
Paroxetine + Sertraline
Severity: Major
Paroxetine and Sertraline: 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
Combining two SSRIs increases the risk of serotonin syndrome without clear benefit. Both drugs inhibit CYP2D6, and paroxetine is a strong inhibitor, so exposure to either may increase and adverse effects become more frequent.
What this interaction means in plain words
Paroxetine and Sertraline 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.
Paroxetine belongs to Central Nervous System; Sertraline belongs to Central Nervous System.
Why it happens
Additive serotonin reuptake inhibition plus CYP2D6 inhibition.
What to do
Avoid concurrent use and switch with a planned taper. If overlap is needed, monitor for serotonin toxicity and adverse effects.
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 Sertraline
- Isocarboxazid + Sertraline Contraindicated
- Methylene blue + Sertraline Contraindicated
- Phenelzine + Sertraline Contraindicated
- Pimozide + Sertraline Contraindicated
- Selegiline transdermal + Sertraline Contraindicated
- Selegiline + Sertraline Contraindicated
Other interactions of Paroxetine
- Isocarboxazid + Paroxetine Contraindicated
- Methylene blue + Paroxetine Contraindicated
- Paroxetine + Phenelzine Contraindicated
- Paroxetine + Pimozide Contraindicated
- Paroxetine + Procarbazine Contraindicated
- Paroxetine + Selegiline Contraindicated
Frequently asked questions
Can I take Paroxetine with Sertraline?
MediHelp rates the interaction as major. Paroxetine and Sertraline 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. Combining two SSRIs increases the risk of serotonin syndrome without clear benefit. Both drugs inhibit CYP2D6, and paroxetine is a strong inhibitor, so exposure to either may increase and adverse effects become more frequent.
How serious is the interaction between Paroxetine and Sertraline?
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 concurrent use and switch with a planned taper. If overlap is needed, monitor for serotonin toxicity and adverse effects.
What other medicines interact with Sertraline?
MediHelp also lists interactions of Sertraline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Sertraline page.
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