Drug interactions
Octreotide + Selpercatinib
Severity: Moderate
Octreotide and Selpercatinib: 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
Selpercatinib can prolong the QT interval, and octreotide may add to this effect through QT changes and bradycardia. The combination may increase the risk of serious ventricular arrhythmias.
What this interaction means in plain words
Octreotide and Selpercatinib 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.
Octreotide belongs to Endocrine; Selpercatinib belongs to Oncology.
Why it happens
Additive QT interval prolongation through pharmacodynamic effects.
What to do
Monitor ECG and electrolytes at baseline and periodically. Correct potassium and magnesium, and reduce or interrupt selpercatinib if QTc rises markedly.
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?
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Other interactions of Octreotide
Other interactions of Selpercatinib
Frequently asked questions
Can I take Octreotide with Selpercatinib?
MediHelp rates the interaction as moderate. Octreotide and Selpercatinib 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. Selpercatinib can prolong the QT interval, and octreotide may add to this effect through QT changes and bradycardia. The combination may increase the risk of serious ventricular arrhythmias.
How serious is the interaction between Octreotide and Selpercatinib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and electrolytes at baseline and periodically. Correct potassium and magnesium, and reduce or interrupt selpercatinib if QTc rises markedly.
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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