Drug interactions
Quetiapine + Triazolam
Severity: Moderate
Quetiapine and Triazolam: 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
Quetiapine and triazolam are both sedating, so combined use can cause marked drowsiness, impaired psychomotor performance and, in vulnerable patients, respiratory depression. Older adults are at higher risk of falls and confusion.
What this interaction means in plain words
Quetiapine and Triazolam 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.
Why it happens
Additive CNS depression via H1 and alpha-1 blockade by quetiapine and GABA-A potentiation by triazolam.
What to do
Use the lowest effective doses and advise against driving or hazardous tasks. Monitor older patients for oversedation.
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 Quetiapine
- Adagrasib + Quetiapine Major
- Amiodarone + Quetiapine Major
- Amisulpride + Quetiapine Major
- Amoxapine + Quetiapine Major
- Anagrelide + Quetiapine Major
- Apalutamide + Quetiapine Major
Frequently asked questions
Can I take Quetiapine with Triazolam?
MediHelp rates the interaction as moderate. Quetiapine and Triazolam 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. Quetiapine and triazolam are both sedating, so combined use can cause marked drowsiness, impaired psychomotor performance and, in vulnerable patients, respiratory depression. Older adults are at higher risk of falls and confusion.
How serious is the interaction between Quetiapine and Triazolam?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and advise against driving or hazardous tasks. Monitor older patients for oversedation.
What other medicines interact with Quetiapine?
MediHelp also lists interactions of Quetiapine with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Quetiapine page.
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