Drug interactions
Brimonidine + Pheniramine
Severity: Minor
Brimonidine and Pheniramine: 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
Pheniramine is a sedating first-generation antihistamine, and brimonidine can cause drowsiness. Together they may increase sedation and reduce alertness.
What this interaction means in plain words
Brimonidine and Pheniramine 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; Pheniramine belongs to Respiratory.
Why it happens
Additive central nervous system depression.
What to do
Warn the patient about drowsiness and advise caution with driving. Consider a non-sedating antihistamine if sedation is troublesome.
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
Other interactions of Pheniramine
- Amisulpride + Pheniramine Moderate
- Asenapine + Pheniramine Moderate
- Brexpiprazole + Pheniramine Moderate
- Brivaracetam + Pheniramine Moderate
- Cariprazine + Pheniramine Moderate
- Fentanyl + Pheniramine Moderate
Frequently asked questions
Can I take Brimonidine with Pheniramine?
MediHelp rates the interaction as minor. Brimonidine and Pheniramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Pheniramine is a sedating first-generation antihistamine, and brimonidine can cause drowsiness. Together they may increase sedation and reduce alertness.
How serious is the interaction between Brimonidine and Pheniramine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Warn the patient about drowsiness and advise caution with driving. Consider a non-sedating antihistamine if sedation is troublesome.
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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