Drug interactions
Brimonidine + Trifluoperazine
Severity: Moderate
Brimonidine 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
Trifluoperazine is a phenothiazine antipsychotic that can cause sedation and hypotension, and brimonidine may add drowsiness. The combination can increase CNS depression, although the sedative effect of trifluoperazine is relatively mild among phenothiazines.
What this interaction means in plain words
Brimonidine 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 dopamine and histamine antagonism combined with central alpha-2 agonism.
What to do
Monitor for sedation and orthostatic hypotension, and reduce the antipsychotic dose 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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Brimonidine and Trifluoperazine, 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 7 days on the web. No card needed.
Other interactions of Brimonidine
- Brimonidine + Isocarboxazid Contraindicated
- Brimonidine + Linezolid Contraindicated
- Brimonidine + Phenelzine Contraindicated
- Brimonidine + Procarbazine Contraindicated
- Brimonidine + Rasagiline Contraindicated
- Brimonidine + Selegiline Contraindicated
Frequently asked questions
Can I take Brimonidine with Trifluoperazine?
MediHelp rates the interaction as moderate. Brimonidine 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. Trifluoperazine is a phenothiazine antipsychotic that can cause sedation and hypotension, and brimonidine may add drowsiness. The combination can increase CNS depression, although the sedative effect of trifluoperazine is relatively mild among phenothiazines.
How serious is the interaction between Brimonidine 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 for sedation and orthostatic hypotension, and reduce the antipsychotic dose if excessive drowsiness occurs.
What other medicines interact with Brimonidine?
MediHelp also lists interactions of Brimonidine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Brimonidine 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.
