Drug interactions
Flecainide + Indacaterol inhaled
Severity: Moderate
Flecainide and Indacaterol inhaled: 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
Indacaterol may cause hypokalemia, tachycardia and QT prolongation, which could add to flecainide's proarrhythmic risk. Clinical effects are generally small at inhaled doses.
What this interaction means in plain words
Flecainide and Indacaterol inhaled 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 proarrhythmic effects from beta2-agonist QT effect and hypokalemia.
What to do
Monitor ECG and potassium in patients with heart disease. Report 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?
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Other interactions of Flecainide
- Flecainide + Nirmatrelvir Contraindicated
- Flecainide + Nirmatrelvir / ritonavir Contraindicated
- Flecainide + Pimozide Contraindicated
- Flecainide + Ritonavir Contraindicated
- Flecainide + Thioridazine Contraindicated
- Flecainide + Tipranavir Contraindicated
Frequently asked questions
Can I take Flecainide with Indacaterol inhaled?
MediHelp rates the interaction as moderate. Flecainide and Indacaterol inhaled 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. Indacaterol may cause hypokalemia, tachycardia and QT prolongation, which could add to flecainide's proarrhythmic risk. Clinical effects are generally small at inhaled doses.
How serious is the interaction between Flecainide and Indacaterol inhaled?
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 ECG and potassium in patients with heart disease. Report palpitations or syncope.
What other medicines interact with Flecainide?
MediHelp also lists interactions of Flecainide with, for example, Nirmatrelvir, Nirmatrelvir / ritonavir, Pimozide. The full list is on the Flecainide page.
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