Drug interactions
Brimonidine + Levocetirizine
Severity: Minor
Brimonidine and Levocetirizine: minor 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
Levocetirizine can cause somnolence, and brimonidine has central depressant effects, mainly with systemic absorption. Combined use may add to drowsiness, though ophthalmic brimonidine exposure is low.
What this interaction means in plain words
Brimonidine and Levocetirizine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Brimonidine belongs to Miscellaneous; Levocetirizine belongs to Respiratory.
Why it happens
Additive CNS depression; brimonidine acts as a central alpha-2 agonist after systemic absorption.
What to do
Counsel patients about possible drowsiness and caution when driving. No dose change is usually needed with ophthalmic brimonidine.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Levocetirizine
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 Levocetirizine?
MediHelp rates the interaction as minor. Brimonidine and Levocetirizine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Levocetirizine can cause somnolence, and brimonidine has central depressant effects, mainly with systemic absorption. Combined use may add to drowsiness, though ophthalmic brimonidine exposure is low.
How serious is the interaction between Brimonidine and Levocetirizine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients about possible drowsiness and caution when driving. No dose change is usually needed with ophthalmic brimonidine.
What other medicines interact with Levocetirizine?
MediHelp also lists interactions of Levocetirizine with, for example, Acrivastine, Asenapine transdermal, Avapritinib. The full list is on the Levocetirizine page.
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