Drug interactions
Brimonidine + Diphenoxylate-atropine
Severity: Minor
Brimonidine and Diphenoxylate-atropine: 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 can cause drowsiness and has CNS depressant effects, particularly with systemic absorption. Combined with diphenoxylate, sedation may be increased.
What this interaction means in plain words
Brimonidine and Diphenoxylate-atropine 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; Diphenoxylate-atropine belongs to Gastrointestinal Tract.
Why it happens
Additive CNS depression, with limited systemic exposure from ophthalmic brimonidine.
What to do
Usually no action beyond counselling about drowsiness; watch more closely in children and the elderly.
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 Diphenoxylate-atropine
- Diphenoxylate-atropine + Isocarboxazid Contraindicated
- Diphenoxylate-atropine + Phenelzine Contraindicated
- Diphenoxylate-atropine + Tranylcypromine Contraindicated
- Alfentanil + Diphenoxylate-atropine Major
- Alvimopan + Diphenoxylate-atropine Major
- Amitriptyline + Diphenoxylate-atropine Major
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 Diphenoxylate-atropine?
MediHelp rates the interaction as minor. Brimonidine and Diphenoxylate-atropine 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 can cause drowsiness and has CNS depressant effects, particularly with systemic absorption. Combined with diphenoxylate, sedation may be increased.
How serious is the interaction between Brimonidine and Diphenoxylate-atropine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Usually no action beyond counselling about drowsiness; watch more closely in children and the elderly.
What other medicines interact with Diphenoxylate-atropine?
MediHelp also lists interactions of Diphenoxylate-atropine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Diphenoxylate-atropine page.
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