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Drug interactions

Parecoxib + Trazodone

Severity: Moderate

Parecoxib and Trazodone: 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

Trazodone inhibits serotonin reuptake, which impairs platelet function, and NSAIDs such as parecoxib can injure the gastric mucosa. Together they may raise the risk of gastrointestinal bleeding, although COX-2 selectivity makes parecoxib somewhat less gastrotoxic.

What this interaction means in plain words

Parecoxib and Trazodone 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

Serotonin reuptake inhibition reduces platelet aggregation, adding to NSAID effects on GI mucosa.

What to do

Monitor for signs of GI bleeding such as black stools or anaemia, and keep the NSAID course short. Consider gastroprotection with a proton pump inhibitor in higher-risk patients.

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 Trazodone?

MediHelp rates the interaction as moderate. Parecoxib and Trazodone 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. Trazodone inhibits serotonin reuptake, which impairs platelet function, and NSAIDs such as parecoxib can injure the gastric mucosa. Together they may raise the risk of gastrointestinal bleeding, although COX-2 selectivity makes parecoxib somewhat less gastrotoxic.

How serious is the interaction between Parecoxib and Trazodone?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for signs of GI bleeding such as black stools or anaemia, and keep the NSAID course short. Consider gastroprotection with a proton pump inhibitor in higher-risk patients.

What other medicines interact with Trazodone?

MediHelp also lists interactions of Trazodone with, for example, Arsenic trioxide, Ibutilide, Isocarboxazid. The full list is on the Trazodone page.

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