Drug interactions
Disopyramide + Potassium citrate
Severity: Moderate
Disopyramide and Potassium citrate: 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
Hyperkalemia from potassium supplementation can worsen conduction slowing caused by disopyramide. Abnormal potassium levels alter antiarrhythmic effects and proarrhythmic risk.
What this interaction means in plain words
Disopyramide and Potassium citrate 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.
Disopyramide belongs to Cardiovascular; Potassium citrate belongs to Gastrointestinal Tract.
Why it happens
Elevated extracellular potassium depresses cardiac conduction, adding to sodium channel blockade.
What to do
Monitor serum potassium and ECG, particularly with renal impairment. Keep potassium within normal range.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Disopyramide and Potassium citrate, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Potassium citrate
Other interactions of Disopyramide
- Amisulpride + Disopyramide Contraindicated
- Desipramine + Disopyramide Contraindicated
- Disopyramide + Dronedarone Contraindicated
- Disopyramide + Itraconazole Contraindicated
- Disopyramide + Ketoconazole Contraindicated
- Disopyramide + Maprotiline Contraindicated
Frequently asked questions
Can I take Disopyramide with Potassium citrate?
MediHelp rates the interaction as moderate. Disopyramide and Potassium citrate 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. Hyperkalemia from potassium supplementation can worsen conduction slowing caused by disopyramide. Abnormal potassium levels alter antiarrhythmic effects and proarrhythmic risk.
How serious is the interaction between Disopyramide and Potassium citrate?
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 serum potassium and ECG, particularly with renal impairment. Keep potassium within normal range.
What other medicines interact with Potassium citrate?
MediHelp also lists interactions of Potassium citrate with, for example, Triamterene, Amiloride, Amlodipine-benazepril. The full list is on the Potassium citrate page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
