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Drug interactions

Brimonidine + Hydrochlorothiazide-lisinopril

Severity: Minor

Brimonidine and Hydrochlorothiazide-lisinopril: 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 lower blood pressure and cause drowsiness, so it may add to the antihypertensive effect of the lisinopril-hydrochlorothiazide combination. With ophthalmic use systemic absorption is limited, so the effect is usually slight.

What this interaction means in plain words

Brimonidine and Hydrochlorothiazide-lisinopril 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; Hydrochlorothiazide-lisinopril belongs to Cardiovascular.

Evidence level: Low

Why it happens

Additive blood pressure lowering through central alpha-2 agonist activity combined with diuretic and ACE inhibitor effects.

What to do

Monitor blood pressure and ask about dizziness, especially when starting brimonidine in elderly or volume-depleted patients.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Brimonidine with Hydrochlorothiazide-lisinopril?

MediHelp rates the interaction as minor. Brimonidine and Hydrochlorothiazide-lisinopril 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 lower blood pressure and cause drowsiness, so it may add to the antihypertensive effect of the lisinopril-hydrochlorothiazide combination. With ophthalmic use systemic absorption is limited, so the effect is usually slight.

How serious is the interaction between Brimonidine and Hydrochlorothiazide-lisinopril?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and ask about dizziness, especially when starting brimonidine in elderly or volume-depleted patients.

What other medicines interact with Hydrochlorothiazide-lisinopril?

MediHelp also lists interactions of Hydrochlorothiazide-lisinopril with, for example, Dofetilide, Sacubitril / valsartan, Amifostine. The full list is on the Hydrochlorothiazide-lisinopril page.

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