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Drug interactions

Hydrochlorothiazide-olmesartan + Mometasone inhaled

Severity: Minor

Hydrochlorothiazide-olmesartan and Mometasone inhaled: 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

Corticosteroids can promote potassium loss, and this may add to the hypokalemia caused by thiazides. With inhaled mometasone at usual doses, systemic exposure is low, so the clinical effect is small.

What this interaction means in plain words

Hydrochlorothiazide-olmesartan and Mometasone inhaled have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Mineralocorticoid-related renal potassium wasting from systemically absorbed corticosteroid adds to thiazide-induced potassium loss.

What to do

No routine action is needed at usual inhaled doses. Check serum potassium if high doses are used or other potassium-lowering drugs are present.

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 Hydrochlorothiazide-olmesartan with Mometasone inhaled?

MediHelp rates the interaction as minor. Hydrochlorothiazide-olmesartan and Mometasone inhaled have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Corticosteroids can promote potassium loss, and this may add to the hypokalemia caused by thiazides. With inhaled mometasone at usual doses, systemic exposure is low, so the clinical effect is small.

How serious is the interaction between Hydrochlorothiazide-olmesartan and Mometasone inhaled?

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 action is needed at usual inhaled doses. Check serum potassium if high doses are used or other potassium-lowering drugs are present.

What other medicines interact with Hydrochlorothiazide-olmesartan?

MediHelp also lists interactions of Hydrochlorothiazide-olmesartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-olmesartan page.

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