Drug interactions
Octreotide + Pentamidine
Severity: Major
Octreotide and Pentamidine: 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
Pentamidine, particularly when given intravenously, can prolong the QT interval and cause torsades de pointes, and it also alters glucose homeostasis. Octreotide adds bradycardia and possible QT effects, raising arrhythmia risk.
What this interaction means in plain words
Octreotide and Pentamidine 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; Pentamidine belongs to Anti Parasitic.
Why it happens
Additive QT prolongation and bradycardia.
What to do
Avoid when alternatives exist; otherwise monitor ECG, potassium, magnesium and blood glucose.
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 Octreotide
Other interactions of Pentamidine
- Clomipramine + Pentamidine Contraindicated
- Desipramine + Pentamidine Contraindicated
- Dronedarone + Pentamidine Contraindicated
- Moxifloxacin + Pentamidine Contraindicated
- Nortriptyline + Pentamidine Contraindicated
- Pentamidine + Pimozide Contraindicated
Frequently asked questions
Can I take Octreotide with Pentamidine?
MediHelp rates the interaction as major. Octreotide and Pentamidine 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. Pentamidine, particularly when given intravenously, can prolong the QT interval and cause torsades de pointes, and it also alters glucose homeostasis. Octreotide adds bradycardia and possible QT effects, raising arrhythmia risk.
How serious is the interaction between Octreotide and Pentamidine?
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 when alternatives exist; otherwise monitor ECG, potassium, magnesium and blood glucose.
What other medicines interact with Octreotide?
MediHelp also lists interactions of Octreotide with, for example, Adagrasib, Amisulpride, Arsenic trioxide. The full list is on the Octreotide page.
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