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Drug interactions

Diazoxide + Metolazone

Severity: Moderate

Diazoxide and Metolazone: 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 diazoxide and thiazide-type diuretics can raise blood glucose, and diazoxide may also cause sodium and fluid retention that metolazone partly offsets. Together they can worsen hyperglycemia and add to hypotension, hypokalemia and hyperuricemia.

What this interaction means in plain words

Diazoxide and Metolazone 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.

Diazoxide belongs to Miscellaneous; Metolazone belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive hyperglycemic effects from inhibition of insulin release (diazoxide) and impaired glucose tolerance (thiazides).

What to do

Monitor blood glucose, potassium and blood pressure, and adjust antidiabetic therapy if glucose rises.

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 Diazoxide with Metolazone?

MediHelp rates the interaction as moderate. Diazoxide and Metolazone 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 diazoxide and thiazide-type diuretics can raise blood glucose, and diazoxide may also cause sodium and fluid retention that metolazone partly offsets. Together they can worsen hyperglycemia and add to hypotension, hypokalemia and hyperuricemia.

How serious is the interaction between Diazoxide and Metolazone?

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 glucose, potassium and blood pressure, and adjust antidiabetic therapy if glucose rises.

What other medicines interact with Metolazone?

MediHelp also lists interactions of Metolazone with, for example, Amifostine, Amlodipine-hydrochlorothiazide-valsartan, Amlodipine-olmesartan-hydrochlorothiazide. The full list is on the Metolazone page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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