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Drug interactions

Hydrochlorothiazide-irbesartan + Insulin degludec / insulin aspart

Severity: Minor

Hydrochlorothiazide-irbesartan and Insulin degludec / insulin aspart: 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

Hydrochlorothiazide can raise blood glucose and reduce the effect of insulin, while irbesartan may slightly increase insulin sensitivity. The overall effect varies and may call for dose changes.

What this interaction means in plain words

Hydrochlorothiazide-irbesartan and Insulin degludec / insulin aspart 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: Moderate

Why it happens

Thiazide-induced insulin resistance and hypokalemia-related reduced insulin release oppose insulin, while ARBs may improve insulin sensitivity.

What to do

Monitor glucose when starting, stopping or changing doses and adjust insulin as needed; check potassium.

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-irbesartan with Insulin degludec / insulin aspart?

MediHelp rates the interaction as minor. Hydrochlorothiazide-irbesartan and Insulin degludec / insulin aspart have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Hydrochlorothiazide can raise blood glucose and reduce the effect of insulin, while irbesartan may slightly increase insulin sensitivity. The overall effect varies and may call for dose changes.

How serious is the interaction between Hydrochlorothiazide-irbesartan and Insulin degludec / insulin aspart?

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 glucose when starting, stopping or changing doses and adjust insulin as needed; check potassium.

What other medicines interact with Hydrochlorothiazide-irbesartan?

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

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