Drug interactions
Octreotide + Thioridazine
Severity: Major
Octreotide and Thioridazine: 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
Octreotide can cause bradycardia and QT prolongation, and thioridazine is a strongly QT-prolonging agent. Bradycardia adds to torsades risk.
What this interaction means in plain words
Octreotide and Thioridazine 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.
Octreotide belongs to Endocrine; Thioridazine belongs to Central Nervous System.
Why it happens
Additive QT prolongation, with octreotide-related bradycardia increasing proarrhythmic risk.
What to do
Avoid if possible. If both are required, monitor ECG, heart rate and potassium and magnesium.
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 Thioridazine
- Abiraterone + Thioridazine Contraindicated
- Adagrasib + Thioridazine Contraindicated
- Amiodarone + Thioridazine Contraindicated
- Amisulpride + Thioridazine Contraindicated
- Amitriptyline + Thioridazine Contraindicated
- Amoxapine + Thioridazine Contraindicated
Other interactions of Octreotide
Frequently asked questions
Can I take Octreotide with Thioridazine?
MediHelp rates the interaction as major. Octreotide and Thioridazine 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. Octreotide can cause bradycardia and QT prolongation, and thioridazine is a strongly QT-prolonging agent. Bradycardia adds to torsades risk.
How serious is the interaction between Octreotide and Thioridazine?
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 both are required, monitor ECG, heart rate and potassium and magnesium.
What other medicines interact with Thioridazine?
MediHelp also lists interactions of Thioridazine with, for example, Abiraterone, Adagrasib, Amiodarone. The full list is on the Thioridazine page.
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