Drug interactions
Clarithromycin + Pasireotide
Severity: Major
Clarithromycin and Pasireotide: 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. Together they may increase the risk of torsades de pointes, particularly with electrolyte disturbance or heart disease.
What this interaction means in plain words
Clarithromycin and Pasireotide 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.
Clarithromycin belongs to Anti Bacterial; Pasireotide belongs to Endocrine.
Why it happens
Additive QT prolongation, with pasireotide-induced bradycardia adding to the arrhythmic risk.
What to do
Check ECG and electrolytes at baseline and correct potassium and magnesium deficits. Monitor QTc during co-therapy, or choose a non-QT-prolonging antibiotic.
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 Clarithromycin
- Astemizole + Clarithromycin Contraindicated
- Avanafil + Clarithromycin Contraindicated
- Cisapride + Clarithromycin Contraindicated
- Clarithromycin + Colchicine Contraindicated
- Clarithromycin + Conivaptan Contraindicated
- Clarithromycin + Dihydroergotamine 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 Clarithromycin with Pasireotide?
MediHelp rates the interaction as major. Clarithromycin and Pasireotide 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. Together they may increase the risk of torsades de pointes, particularly with electrolyte disturbance or heart disease.
How serious is the interaction between Clarithromycin and Pasireotide?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check ECG and electrolytes at baseline and correct potassium and magnesium deficits. Monitor QTc during co-therapy, or choose a non-QT-prolonging antibiotic.
What other medicines interact with Clarithromycin?
MediHelp also lists interactions of Clarithromycin with, for example, Astemizole, Avanafil, Cisapride. The full list is on the Clarithromycin page.
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