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Drug interactions

Fluconazole + Tiotropium-olodaterol

Severity: Moderate

Fluconazole and Tiotropium-olodaterol: 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

Fluconazole can prolong the QT interval, particularly at higher doses or with hypokalemia. Olodaterol may contribute to this effect through its cardiac and potassium-lowering actions.

What this interaction means in plain words

Fluconazole and Tiotropium-olodaterol 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.

Fluconazole belongs to Anti Fungals; Tiotropium-olodaterol belongs to Respiratory.

Evidence level: Low

Why it happens

Additive QT prolongation with possible beta2-mediated hypokalemia.

What to do

Check ECG and electrolytes in patients with additional QT risk factors. Monitor for palpitations or syncope.

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 Fluconazole with Tiotropium-olodaterol?

MediHelp rates the interaction as moderate. Fluconazole and Tiotropium-olodaterol 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. Fluconazole can prolong the QT interval, particularly at higher doses or with hypokalemia. Olodaterol may contribute to this effect through its cardiac and potassium-lowering actions.

How serious is the interaction between Fluconazole and Tiotropium-olodaterol?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check ECG and electrolytes in patients with additional QT risk factors. Monitor for palpitations or syncope.

What other medicines interact with Tiotropium-olodaterol?

MediHelp also lists interactions of Tiotropium-olodaterol with, for example, Amisulpride, Arformoterol, Arsenic trioxide. The full list is on the Tiotropium-olodaterol page.

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