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Drug interactions

Parecoxib + Paroxetine

Severity: Moderate

Parecoxib and Paroxetine: moderate 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

SSRIs combined with NSAIDs such as parecoxib raise the risk of bleeding, notably gastrointestinal bleeding. Parecoxib is a COX-2 selective agent with less platelet effect, but mucosal injury and the SSRI's platelet effect may still add risk.

What this interaction means in plain words

Parecoxib and Paroxetine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Evidence level: Moderate

Why it happens

SSRI-induced platelet serotonin depletion combined with NSAID-related gastrointestinal mucosal toxicity.

What to do

Use the lowest effective parecoxib dose for the shortest time and consider gastroprotection in patients at risk. Monitor for signs of GI bleeding such as melena.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Parecoxib with Paroxetine?

MediHelp rates the interaction as moderate. Parecoxib and Paroxetine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. SSRIs combined with NSAIDs such as parecoxib raise the risk of bleeding, notably gastrointestinal bleeding. Parecoxib is a COX-2 selective agent with less platelet effect, but mucosal injury and the SSRI's platelet effect may still add risk.

How serious is the interaction between Parecoxib and Paroxetine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective parecoxib dose for the shortest time and consider gastroprotection in patients at risk. Monitor for signs of GI bleeding such as melena.

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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