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Drug interactions

Duloxetine + Tipranavir

Severity: Moderate

Duloxetine and Tipranavir: 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

Tipranavir is generally given with ritonavir, which inhibits CYP2D6 and CYP3A4 and may increase duloxetine concentrations. This may increase adverse effects such as nausea, dizziness and blood pressure elevation. Ritonavir can also induce CYP1A2, so the net effect is uncertain.

What this interaction means in plain words

Duloxetine and Tipranavir 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.

Duloxetine belongs to Central Nervous System; Tipranavir belongs to Anti Virals.

Evidence level: Low

Why it happens

Inhibition of CYP2D6 by ritonavir-boosted tipranavir potentially raising duloxetine exposure, partly offset by CYP1A2 induction.

What to do

Start duloxetine at a low dose and titrate slowly while monitoring tolerability. Reduce the dose if adverse effects emerge.

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 Duloxetine with Tipranavir?

MediHelp rates the interaction as moderate. Duloxetine and Tipranavir 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. Tipranavir is generally given with ritonavir, which inhibits CYP2D6 and CYP3A4 and may increase duloxetine concentrations. This may increase adverse effects such as nausea, dizziness and blood pressure elevation. Ritonavir can also induce CYP1A2, so the net effect is uncertain.

How serious is the interaction between Duloxetine and Tipranavir?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start duloxetine at a low dose and titrate slowly while monitoring tolerability. Reduce the dose if adverse effects emerge.

What other medicines interact with Duloxetine?

MediHelp also lists interactions of Duloxetine with, for example, Isocarboxazid, Linezolid, Methylene blue. The full list is on the Duloxetine page.

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