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Drug interactions

Minoxidil + Triamterene

Severity: Moderate

Minoxidil and Triamterene: 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

Both agents lower blood pressure, so combined use can cause additive hypotension. Minoxidil is usually given with a diuretic to counter fluid retention, making this combination common and generally manageable.

What this interaction means in plain words

Minoxidil and Triamterene 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.

Minoxidil belongs to Cardiovascular; Triamterene belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic blood pressure lowering from vasodilation and diuresis.

What to do

Monitor blood pressure, volume status and electrolytes, and titrate doses gradually.

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 Minoxidil with Triamterene?

MediHelp rates the interaction as moderate. Minoxidil and Triamterene 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. Both agents lower blood pressure, so combined use can cause additive hypotension. Minoxidil is usually given with a diuretic to counter fluid retention, making this combination common and generally manageable.

How serious is the interaction between Minoxidil and Triamterene?

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, volume status and electrolytes, and titrate doses gradually.

What other medicines interact with Triamterene?

MediHelp also lists interactions of Triamterene with, for example, Amiloride, Eplerenone, Potassium citrate / citric acid. The full list is on the Triamterene page.

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

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