Drug interactions
Octreotide + Protriptyline
Severity: Moderate
Octreotide and Protriptyline: moderate 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
Protriptyline, a tricyclic antidepressant, can slow cardiac conduction and prolong the QT interval. Octreotide may contribute bradycardia and conduction effects, increasing arrhythmia risk.
What this interaction means in plain words
Octreotide and Protriptyline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive pharmacodynamic effects on cardiac conduction and repolarization.
What to do
Obtain a baseline ECG and monitor QTc and heart rate, correcting potassium and magnesium. Consider an alternative antidepressant if the QTc lengthens significantly.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Octreotide and Protriptyline, 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 14 days on the web. No card needed.
Other interactions of Octreotide
Frequently asked questions
Can I take Octreotide with Protriptyline?
MediHelp rates the interaction as moderate. Octreotide and Protriptyline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Protriptyline, a tricyclic antidepressant, can slow cardiac conduction and prolong the QT interval. Octreotide may contribute bradycardia and conduction effects, increasing arrhythmia risk.
How serious is the interaction between Octreotide and Protriptyline?
MediHelp rates it moderate, 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 QTc and heart rate, correcting potassium and magnesium. Consider an alternative antidepressant if the QTc lengthens significantly.
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.
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.
