Drug interactions
Insulin detemir + Metolazone
Severity: Moderate
Insulin detemir 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
Metolazone may raise blood glucose and reduce the effect of insulin detemir. Basal insulin needs may increase after the diuretic is started.
What this interaction means in plain words
Insulin detemir 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.
Insulin detemir belongs to Endocrine; Metolazone belongs to Cardiovascular.
Why it happens
Thiazide-like diuretics reduce insulin secretion and sensitivity, partly via hypokalemia, opposing insulin action.
What to do
Monitor glucose when metolazone is started or changed and titrate insulin detemir as needed. Correct hypokalemia.
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?
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Other interactions of Metolazone
Other interactions of Insulin detemir
Frequently asked questions
Can I take Insulin detemir with Metolazone?
MediHelp rates the interaction as moderate. Insulin detemir 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. Metolazone may raise blood glucose and reduce the effect of insulin detemir. Basal insulin needs may increase after the diuretic is started.
How serious is the interaction between Insulin detemir 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 glucose when metolazone is started or changed and titrate insulin detemir as needed. Correct hypokalemia.
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.
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