Drug interactions
Flecainide + Teduglutide
Severity: Moderate
Flecainide and Teduglutide: 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
Teduglutide improves intestinal fluid and nutrient absorption and may increase absorption of oral drugs. For a narrow-therapeutic-index drug like flecainide, greater absorption could raise levels and the risk of conduction toxicity.
What this interaction means in plain words
Flecainide and Teduglutide 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.
Flecainide belongs to Cardiovascular; Teduglutide belongs to Endocrine.
Why it happens
Enhanced intestinal absorption of oral drugs due to teduglutide's trophic effect on the gut and altered fluid absorption.
What to do
Monitor ECG and flecainide concentrations when starting or stopping teduglutide. Adjust the flecainide dose as needed.
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
Other interactions of Teduglutide
- Chlordiazepoxide + Teduglutide Moderate
- Clonazepam + Teduglutide Moderate
- Colchicine + Teduglutide Moderate
- Cyclosporin + Teduglutide Moderate
- Digoxin + Teduglutide Moderate
- Ethosuximide + Teduglutide Moderate
Frequently asked questions
Can I take Flecainide with Teduglutide?
MediHelp rates the interaction as moderate. Flecainide and Teduglutide 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. Teduglutide improves intestinal fluid and nutrient absorption and may increase absorption of oral drugs. For a narrow-therapeutic-index drug like flecainide, greater absorption could raise levels and the risk of conduction toxicity.
How serious is the interaction between Flecainide and Teduglutide?
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 flecainide concentrations when starting or stopping teduglutide. Adjust the flecainide dose as needed.
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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