Drug interactions
Clozapine + Estazolam
Severity: Major
Clozapine and Estazolam: major interaction.
Last updated Sources: Base de donnees publique des medicaments (France)
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
Combining clozapine with a benzodiazepine increases sedation and may cause respiratory depression, hypotension and syncope, with rare cases of collapse reported. The risk is highest when clozapine is being started or titrated, or when doses are raised.
What this interaction means in plain words
Clozapine and Estazolam 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
Additive CNS depression, with enhanced GABA-A effects of the benzodiazepine and clozapine's sedating and hypotensive effects.
What to do
Use the lowest effective estazolam dose and avoid starting both together; monitor sedation, respiratory status and blood pressure. Take extra care during clozapine titration and in patients with respiratory disease.
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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References
Other interactions of Clozapine
- Clozapine + Deferiprone Contraindicated
- Clozapine + Irinotecan Contraindicated
- Clozapine + Pimozide Contraindicated
- Clozapine + Thioridazine Contraindicated
- Acalabrutinib + Clozapine Major
- Adagrasib + Clozapine Major
Frequently asked questions
Can I take Clozapine with Estazolam?
MediHelp rates the interaction as major. Clozapine and Estazolam 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. Combining clozapine with a benzodiazepine increases sedation and may cause respiratory depression, hypotension and syncope, with rare cases of collapse reported. The risk is highest when clozapine is being started or titrated, or when doses are raised.
How serious is the interaction between Clozapine and Estazolam?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective estazolam dose and avoid starting both together; monitor sedation, respiratory status and blood pressure. Take extra care during clozapine titration and in patients with respiratory disease.
What other medicines interact with Clozapine?
MediHelp also lists interactions of Clozapine with, for example, Deferiprone, Irinotecan, Pimozide. The full list is on the Clozapine page.
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