Drug interactions
Brimonidine + Doxazosin
Severity: Minor
Brimonidine and Doxazosin: 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 an alpha-2 agonist that can lower blood pressure through small amounts of systemic absorption. With doxazosin, this might slightly add to hypotension, though the clinical effect is likely small.
What this interaction means in plain words
Brimonidine and Doxazosin 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; Doxazosin belongs to Genitourinary.
Why it happens
Possible additive hypotension from central alpha-2 agonism and peripheral alpha-1 blockade.
What to do
No routine change is needed; ask about dizziness and check blood pressure if symptoms occur.
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 Doxazosin
- Alfuzosin + Doxazosin Major
- Amifostine + Doxazosin Major
- Avanafil + Doxazosin Major
- Doxazosin + Dutasteride-tamsulosin Major
- Doxazosin + Phentolamine Major
- Doxazosin + Prazosin 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 Doxazosin?
MediHelp rates the interaction as minor. Brimonidine and Doxazosin 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 an alpha-2 agonist that can lower blood pressure through small amounts of systemic absorption. With doxazosin, this might slightly add to hypotension, though the clinical effect is likely small.
How serious is the interaction between Brimonidine and Doxazosin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change is needed; ask about dizziness and check blood pressure if symptoms occur.
What other medicines interact with Doxazosin?
MediHelp also lists interactions of Doxazosin with, for example, Alfuzosin, Amifostine, Avanafil. The full list is on the Doxazosin page.
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