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Drug interactions

Betaxolol + Fosinopril-hydrochlorothiazide

Severity: Moderate

Betaxolol and Fosinopril-hydrochlorothiazide: moderate 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

Betaxolol and fosinopril-hydrochlorothiazide together give additive blood pressure lowering and are commonly used together. Excessive hypotension or bradycardia can occur, and potassium and glucose may be affected by the thiazide.

What this interaction means in plain words

Betaxolol and Fosinopril-hydrochlorothiazide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Betaxolol belongs to Cardiovascular; Fosinopril-hydrochlorothiazide belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic antihypertensive effects via beta-blockade, ACE inhibition and diuresis.

What to do

Monitor blood pressure, heart rate and serum potassium after starting or changing doses. Reduce doses if symptomatic hypotension or bradycardia develops.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Betaxolol with Fosinopril-hydrochlorothiazide?

MediHelp rates the interaction as moderate. Betaxolol and Fosinopril-hydrochlorothiazide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Betaxolol and fosinopril-hydrochlorothiazide together give additive blood pressure lowering and are commonly used together. Excessive hypotension or bradycardia can occur, and potassium and glucose may be affected by the thiazide.

How serious is the interaction between Betaxolol and Fosinopril-hydrochlorothiazide?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure, heart rate and serum potassium after starting or changing doses. Reduce doses if symptomatic hypotension or bradycardia develops.

What other medicines interact with Fosinopril-hydrochlorothiazide?

MediHelp also lists interactions of Fosinopril-hydrochlorothiazide with, for example, Aliskiren, Dofetilide, Protein a column. The full list is on the Fosinopril-hydrochlorothiazide page.

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