Drug interactions
Ribociclib + Triazolam
Severity: Major
Ribociclib and Triazolam: 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
Triazolam is a sensitive CYP3A4 substrate, and ribociclib inhibits CYP3A4. Triazolam exposure may increase markedly, causing excess sedation, amnesia and respiratory depression.
What this interaction means in plain words
Ribociclib and Triazolam 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.
Why it happens
Ribociclib inhibits CYP3A4, reducing first-pass and systemic clearance of triazolam.
What to do
Avoid the combination if possible and use a non-CYP3A4 hypnotic such as temazepam. If it must be used, give a substantially reduced triazolam dose and monitor sedation.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Ribociclib and Triazolam, 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 Ribociclib
- Amiodarone + Ribociclib Contraindicated
- Cisapride + Ribociclib Contraindicated
- Dofetilide + Ribociclib Contraindicated
- Dronedarone + Ribociclib Contraindicated
- Flibanserin + Ribociclib Contraindicated
- Ibutilide + Ribociclib Contraindicated
Frequently asked questions
Can I take Ribociclib with Triazolam?
MediHelp rates the interaction as major. Ribociclib and Triazolam 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. Triazolam is a sensitive CYP3A4 substrate, and ribociclib inhibits CYP3A4. Triazolam exposure may increase markedly, causing excess sedation, amnesia and respiratory depression.
How serious is the interaction between Ribociclib and Triazolam?
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 the combination if possible and use a non-CYP3A4 hypnotic such as temazepam. If it must be used, give a substantially reduced triazolam dose and monitor sedation.
What other medicines interact with Ribociclib?
MediHelp also lists interactions of Ribociclib with, for example, Amiodarone, Cisapride, Dofetilide. The full list is on the Ribociclib 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.
