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Drug interactions

Tapentadol + Trifluoperazine

Severity: Moderate

Tapentadol and Trifluoperazine: 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

Trifluoperazine is a phenothiazine antipsychotic with sedative effects, so with tapentadol it may increase drowsiness, hypotension and respiratory depression. Both drugs can also lower the seizure threshold.

What this interaction means in plain words

Tapentadol and Trifluoperazine 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

Additive CNS depressant and hypotensive effects of an opioid and an antipsychotic.

What to do

Use the lowest effective doses and monitor sedation, blood pressure and breathing, especially when starting or increasing doses. Advise patients to avoid alcohol and driving.

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 Tapentadol with Trifluoperazine?

MediHelp rates the interaction as moderate. Tapentadol and Trifluoperazine 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. Trifluoperazine is a phenothiazine antipsychotic with sedative effects, so with tapentadol it may increase drowsiness, hypotension and respiratory depression. Both drugs can also lower the seizure threshold.

How serious is the interaction between Tapentadol and Trifluoperazine?

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 doses and monitor sedation, blood pressure and breathing, especially when starting or increasing doses. Advise patients to avoid alcohol and driving.

What other medicines interact with Tapentadol?

MediHelp also lists interactions of Tapentadol with, for example, Calcium / magnesium / potassium / sodium oxybates, Isocarboxazid, Linezolid. The full list is on the Tapentadol page.

Full monographs, dosing and an interaction checker in the MediHelp app

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