Drug interactions
Dofetilide + Triptorelin
Severity: Major
Dofetilide and Triptorelin: major 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
Dofetilide is a potent QT-prolonging antiarrhythmic with a substantial torsades risk. Triptorelin-induced androgen deprivation may further lengthen the QT interval, adding to the danger.
What this interaction means in plain words
Dofetilide and Triptorelin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Dofetilide belongs to Cardiovascular; Triptorelin belongs to Endocrine.
Why it happens
Additive pharmacodynamic QT prolongation; dofetilide blocks IKr and androgen suppression may reduce repolarization reserve.
What to do
Avoid if possible; if unavoidable, continue dofetilide only with inpatient initiation protocols, continuous ECG monitoring and normal electrolytes. Reassess QTc after each dose change and consider an alternative to dofetilide.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Triptorelin
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 Triptorelin?
MediHelp rates the interaction as major. Dofetilide and Triptorelin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Dofetilide is a potent QT-prolonging antiarrhythmic with a substantial torsades risk. Triptorelin-induced androgen deprivation may further lengthen the QT interval, adding to the danger.
How serious is the interaction between Dofetilide and Triptorelin?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible; if unavoidable, continue dofetilide only with inpatient initiation protocols, continuous ECG monitoring and normal electrolytes. Reassess QTc after each dose change and consider an alternative to dofetilide.
What other medicines interact with Triptorelin?
MediHelp also lists interactions of Triptorelin with, for example, Amisulpride, Arsenic trioxide, Bedaquiline. The full list is on the Triptorelin page.
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