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Drug interactions

Doxazosin + Imidapril

Severity: Moderate

Doxazosin and Imidapril: 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

Combining an alpha-blocker with an ACE inhibitor may cause an exaggerated first-dose hypotensive response, with dizziness or syncope in susceptible patients.

What this interaction means in plain words

Doxazosin and Imidapril 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.

Doxazosin belongs to Genitourinary; Imidapril belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive vasodilation from alpha-1 blockade and ACE inhibition.

What to do

Start at low doses, preferably at bedtime, and monitor blood pressure and orthostatic symptoms.

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 Doxazosin with Imidapril?

MediHelp rates the interaction as moderate. Doxazosin and Imidapril 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. Combining an alpha-blocker with an ACE inhibitor may cause an exaggerated first-dose hypotensive response, with dizziness or syncope in susceptible patients.

How serious is the interaction between Doxazosin and Imidapril?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start at low doses, preferably at bedtime, and monitor blood pressure and orthostatic symptoms.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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