Drug interactions
Brimonidine + Olopatadine intranasal
Severity: Minor
Brimonidine and Olopatadine intranasal: 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
Intranasal olopatadine can cause somnolence in some patients. Systemic brimonidine may modestly add to drowsiness.
What this interaction means in plain words
Brimonidine and Olopatadine intranasal have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Additive CNS depressant effects from antihistamine sedation and central alpha-2 agonism.
What to do
Advise patients to note increased drowsiness and avoid driving if affected. No dose change is usually required.
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 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 Olopatadine intranasal?
MediHelp rates the interaction as minor. Brimonidine and Olopatadine intranasal have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Intranasal olopatadine can cause somnolence in some patients. Systemic brimonidine may modestly add to drowsiness.
How serious is the interaction between Brimonidine and Olopatadine intranasal?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to note increased drowsiness and avoid driving if affected. No dose change is usually required.
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.
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