Drug interactions
Pimozide + Triptorelin
Severity: Major
Pimozide 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
Androgen deprivation therapy with triptorelin can prolong the QT interval, and pimozide has strong QT-prolonging effects. Combined, the risk of torsades de pointes increases.
What this interaction means in plain words
Pimozide 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.
Pimozide belongs to Central Nervous System; Triptorelin belongs to Endocrine.
Why it happens
Additive QT prolongation; androgen suppression may lengthen cardiac repolarization.
What to do
Obtain a baseline ECG and electrolytes and monitor periodically. Consider an alternative to pimozide where possible.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Pimozide and Triptorelin, 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 Pimozide
- Adagrasib + Pimozide Contraindicated
- Amiodarone + Pimozide Contraindicated
- Amisulpride + Pimozide Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amoxapine + Pimozide Contraindicated
- Anagrelide + Pimozide Contraindicated
Other interactions of Triptorelin
Frequently asked questions
Can I take Pimozide with Triptorelin?
MediHelp rates the interaction as major. Pimozide 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. Androgen deprivation therapy with triptorelin can prolong the QT interval, and pimozide has strong QT-prolonging effects. Combined, the risk of torsades de pointes increases.
How serious is the interaction between Pimozide 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: Obtain a baseline ECG and electrolytes and monitor periodically. Consider an alternative to pimozide where possible.
What other medicines interact with Pimozide?
MediHelp also lists interactions of Pimozide with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Pimozide 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.
