Drug interactions
Cisapride + Isavuconazonium
Severity: Contraindicated
Cisapride and Isavuconazonium: contraindicated 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
Isavuconazole, the active moiety, is a moderate CYP3A4 inhibitor and raises cisapride exposure. Because cisapride is a CYP3A4 substrate with serious QT risk, higher levels may provoke torsades de pointes. Cisapride does not meaningfully affect isavuconazole.
What this interaction means in plain words
Cisapride and Isavuconazonium are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Cisapride belongs to Gastrointestinal Tract; Isavuconazonium belongs to Anti Fungals.
Why it happens
Inhibition of CYP3A4-mediated cisapride metabolism by isavuconazole, increasing cisapride concentrations and QT prolongation.
What to do
Avoid the combination; use an alternative prokinetic or antifungal.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Cisapride and Isavuconazonium, 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 Cisapride
- Apomorphine + Cisapride Contraindicated
- Artemether + Cisapride Contraindicated
- Azithromycin + Cisapride Contraindicated
- Ceritinib + Cisapride Contraindicated
- Chloroquine + Cisapride Contraindicated
- Cisapride + Citalopram Contraindicated
Other interactions of Isavuconazonium
- Amobarbital + Isavuconazonium Contraindicated
- Apalutamide + Isavuconazonium Contraindicated
- Carbamazepine + Isavuconazonium Contraindicated
- Efavirenz + Isavuconazonium Contraindicated
- Enzalutamide + Isavuconazonium Contraindicated
- Isavuconazonium + Ketoconazole Contraindicated
Frequently asked questions
Can I take Cisapride with Isavuconazonium?
MediHelp rates the interaction as contraindicated. Cisapride and Isavuconazonium are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Isavuconazole, the active moiety, is a moderate CYP3A4 inhibitor and raises cisapride exposure. Because cisapride is a CYP3A4 substrate with serious QT risk, higher levels may provoke torsades de pointes. Cisapride does not meaningfully affect isavuconazole.
How serious is the interaction between Cisapride and Isavuconazonium?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; use an alternative prokinetic or antifungal.
What other medicines interact with Cisapride?
MediHelp also lists interactions of Cisapride with, for example, Apomorphine, Artemether, Azithromycin. The full list is on the Cisapride 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.
