Drug interactions
Chlordiazepoxide + Trifluoperazine
Severity: Moderate
Chlordiazepoxide 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
Both drugs depress the CNS, and combined use can produce more drowsiness, dizziness and orthostatic hypotension. Impaired alertness may affect driving and daily activities.
What this interaction means in plain words
Chlordiazepoxide 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 from GABA-A potentiation and antipsychotic dopaminergic, histaminic and adrenergic blockade.
What to do
Monitor sedation and blood pressure, particularly when starting or increasing doses. Lower the doses if excessive drowsiness occurs.
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 Chlordiazepoxide
Frequently asked questions
Can I take Chlordiazepoxide with Trifluoperazine?
MediHelp rates the interaction as moderate. Chlordiazepoxide 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. Both drugs depress the CNS, and combined use can produce more drowsiness, dizziness and orthostatic hypotension. Impaired alertness may affect driving and daily activities.
How serious is the interaction between Chlordiazepoxide 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: Monitor sedation and blood pressure, particularly when starting or increasing doses. Lower the doses if excessive drowsiness occurs.
What other medicines interact with Chlordiazepoxide?
MediHelp also lists interactions of Chlordiazepoxide with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Chlordiazepoxide page.
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