Drug interactions
Alprazolam + Trifluoperazine
Severity: Moderate
Alprazolam and Trifluoperazine: 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
Alprazolam with a phenothiazine antipsychotic causes additive sedation and psychomotor impairment. Hypotension and falls may occur, particularly in older patients.
What this interaction means in plain words
Alprazolam and Trifluoperazine 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 through GABA-A potentiation and antipsychotic receptor blockade.
What to do
Start with low doses and monitor for sedation, orthostatic hypotension and impaired coordination. Counsel patients to avoid driving and alcohol.
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 Alprazolam
- Alprazolam + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Alprazolam + Itraconazole Contraindicated
- Alprazolam + Ketoconazole Contraindicated
- Alprazolam + Levoketoconazole Contraindicated
- Alprazolam + Sodium oxybate Contraindicated
- Alfentanil + Alprazolam Major
Frequently asked questions
Can I take Alprazolam with Trifluoperazine?
MediHelp rates the interaction as moderate. Alprazolam and Trifluoperazine 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. Alprazolam with a phenothiazine antipsychotic causes additive sedation and psychomotor impairment. Hypotension and falls may occur, particularly in older patients.
How serious is the interaction between Alprazolam and Trifluoperazine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start with low doses and monitor for sedation, orthostatic hypotension and impaired coordination. Counsel patients to avoid driving and alcohol.
What other medicines interact with Alprazolam?
MediHelp also lists interactions of Alprazolam with, for example, Calcium / magnesium / potassium / sodium oxybates, Itraconazole, Ketoconazole. The full list is on the Alprazolam page.
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