Drug interactions
Dofetilide + Mifepristone
Severity: Contraindicated
Dofetilide and Mifepristone: contraindicated 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
Both drugs prolong the QT interval, and dofetilide has a narrow margin for torsades de pointes. Combination can result in life-threatening ventricular arrhythmia.
What this interaction means in plain words
Dofetilide and Mifepristone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Dofetilide belongs to Cardiovascular; Mifepristone belongs to Endocrine.
Why it happens
Additive prolongation of cardiac repolarization (QTc).
What to do
Avoid the combination and choose an alternative to one of the drugs. If mifepristone is essential, dofetilide should be managed by a specialist with continuous ECG monitoring.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Mifepristone
- Apixaban + Mifepristone Contraindicated
- Argatroban + Mifepristone Contraindicated
- Cisapride + Mifepristone Contraindicated
- Cortisone + Mifepristone Contraindicated
- Cyclosporin + Mifepristone Contraindicated
- Dabigatran etexilate + Mifepristone Contraindicated
Other interactions of Dofetilide
- Amiodarone + Dofetilide Contraindicated
- Amisulpride + Dofetilide Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Dofetilide Contraindicated
- Amlodipine-olmesartan-hydrochlorothiazide + Dofetilide Contraindicated
- Candesartan-hydrochlorothiazide + Dofetilide Contraindicated
- Captopril-hydrochlorothiazide + Dofetilide Contraindicated
Frequently asked questions
Can I take Dofetilide with Mifepristone?
MediHelp rates the interaction as contraindicated. Dofetilide and Mifepristone are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Both drugs prolong the QT interval, and dofetilide has a narrow margin for torsades de pointes. Combination can result in life-threatening ventricular arrhythmia.
How serious is the interaction between Dofetilide and Mifepristone?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and choose an alternative to one of the drugs. If mifepristone is essential, dofetilide should be managed by a specialist with continuous ECG monitoring.
What other medicines interact with Mifepristone?
MediHelp also lists interactions of Mifepristone with, for example, Apixaban, Argatroban, Cisapride. The full list is on the Mifepristone page.
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