Drug interactions
Brimonidine + Orphenadrin
Severity: Minor
Brimonidine and Orphenadrin: 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
Brimonidine is usually used as an eye drop with low systemic exposure, but it can cause drowsiness and fatigue in some patients. Any additive sedation with orphenadrine is likely to be small.
What this interaction means in plain words
Brimonidine and Orphenadrin 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; Orphenadrin belongs to Musculoskeletal.
Why it happens
Possible additive CNS depression from systemic alpha-2 agonist absorption.
What to do
Make the patient aware of possible added drowsiness and advise caution when driving. No dose change is usually needed.
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 Orphenadrin
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 Orphenadrin?
MediHelp rates the interaction as minor. Brimonidine and Orphenadrin 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 is usually used as an eye drop with low systemic exposure, but it can cause drowsiness and fatigue in some patients. Any additive sedation with orphenadrine is likely to be small.
How serious is the interaction between Brimonidine and Orphenadrin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Make the patient aware of possible added drowsiness and advise caution when driving. No dose change is usually needed.
What other medicines interact with Orphenadrin?
MediHelp also lists interactions of Orphenadrin with, for example, Alfentanil, Amobarbital, Benzhydrocodone / acetaminophen. The full list is on the Orphenadrin page.
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