Drug interactions
Toremifene + Triptorelin
Severity: Major
Toremifene 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
Toremifene prolongs the QT interval in a dose-related manner and is contraindicated in patients with QT risk. Triptorelin may add to this through androgen deprivation. The combination raises the risk of torsades de pointes.
What this interaction means in plain words
Toremifene 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.
Toremifene belongs to Endocrine; Triptorelin belongs to Endocrine.
Why it happens
Additive QT prolongation.
What to do
Avoid the combination where possible. If both are needed, obtain a baseline ECG, correct potassium and magnesium, and monitor the ECG periodically.
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 Toremifene
- Amiodarone + Toremifene Contraindicated
- Dronedarone + Toremifene Contraindicated
- Nilotinib + Toremifene Contraindicated
- Pimozide + Toremifene Contraindicated
- Quinidine + Toremifene Contraindicated
- Ribociclib + Toremifene Contraindicated
Frequently asked questions
Can I take Toremifene with Triptorelin?
MediHelp rates the interaction as major. Toremifene 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. Toremifene prolongs the QT interval in a dose-related manner and is contraindicated in patients with QT risk. Triptorelin may add to this through androgen deprivation. The combination raises the risk of torsades de pointes.
How serious is the interaction between Toremifene 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 the combination where possible. If both are needed, obtain a baseline ECG, correct potassium and magnesium, and monitor the ECG periodically.
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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