Drug interactions
Pasireotide + Quinidine
Severity: Major
Pasireotide and Quinidine: 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
Both drugs can prolong the QT interval, and pasireotide also causes bradycardia. Combined use increases the risk of torsades de pointes, especially with electrolyte disturbances.
What this interaction means in plain words
Pasireotide and Quinidine 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.
Pasireotide belongs to Endocrine; Quinidine belongs to Anti Parasitic.
Why it happens
Additive QT prolongation, with pasireotide-related bradycardia further increasing arrhythmia susceptibility.
What to do
Obtain a baseline ECG and monitor ECG periodically; correct hypokalemia and hypomagnesemia, and consider an alternative antiarrhythmic if the QTc lengthens.
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 Quinidine
- Adagrasib + Quinidine Contraindicated
- Arsenic trioxide + Quinidine Contraindicated
- Artemether / lumefantrine + Quinidine Contraindicated
- Chloroquine + Quinidine Contraindicated
- Dofetilide + Quinidine Contraindicated
- Dronedarone + Quinidine Contraindicated
Other interactions of Pasireotide
- Dronedarone + Pasireotide Contraindicated
- Pasireotide + Pimozide Contraindicated
- Amiodarone + Pasireotide Major
- Amisulpride + Pasireotide Major
- Amitriptyline + Pasireotide Major
- Anagrelide + Pasireotide Major
Frequently asked questions
Can I take Pasireotide with Quinidine?
MediHelp rates the interaction as major. Pasireotide and Quinidine 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. Both drugs can prolong the QT interval, and pasireotide also causes bradycardia. Combined use increases the risk of torsades de pointes, especially with electrolyte disturbances.
How serious is the interaction between Pasireotide and Quinidine?
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 monitor ECG periodically; correct hypokalemia and hypomagnesemia, and consider an alternative antiarrhythmic if the QTc lengthens.
What other medicines interact with Quinidine?
MediHelp also lists interactions of Quinidine with, for example, Adagrasib, Arsenic trioxide, Artemether / lumefantrine. The full list is on the Quinidine page.
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