Drug interactions
Tiotropium-olodaterol + Trifluoperazine
Severity: Moderate
Tiotropium-olodaterol 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 with some anticholinergic activity and QT-prolonging potential. With tiotropium and olodaterol, anticholinergic effects and arrhythmia risk may rise.
What this interaction means in plain words
Tiotropium-olodaterol 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.
Why it happens
Additive antimuscarinic activity and additive QT prolongation with beta2-agonist cardiac stimulation.
What to do
Monitor for anticholinergic symptoms and palpitations, and obtain an ECG in patients with other QT risk factors. Keep potassium and magnesium normal.
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?
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Other interactions of Tiotropium-olodaterol
Frequently asked questions
Can I take Tiotropium-olodaterol with Trifluoperazine?
MediHelp rates the interaction as moderate. Tiotropium-olodaterol 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 with some anticholinergic activity and QT-prolonging potential. With tiotropium and olodaterol, anticholinergic effects and arrhythmia risk may rise.
How serious is the interaction between Tiotropium-olodaterol 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: Monitor for anticholinergic symptoms and palpitations, and obtain an ECG in patients with other QT risk factors. Keep potassium and magnesium normal.
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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