Skip to content

Drug interactions

Chlorothiazide + Insulin detemir

Severity: Minor

Chlorothiazide and Insulin detemir: 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

Chlorothiazide may raise blood glucose and blunt the effect of insulin. The impact is usually small but can matter in poorly controlled diabetes.

What this interaction means in plain words

Chlorothiazide and Insulin detemir have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Chlorothiazide belongs to Cardiovascular; Insulin detemir belongs to Endocrine.

Evidence level: Moderate

Why it happens

Thiazide-induced hypokalemia and reduced insulin secretion and sensitivity oppose insulin action.

What to do

Check blood glucose after starting or adjusting chlorothiazide and titrate insulin detemir as needed; correct potassium depletion.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Chlorothiazide and Insulin detemir, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Chlorothiazide with Insulin detemir?

MediHelp rates the interaction as minor. Chlorothiazide and Insulin detemir have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Chlorothiazide may raise blood glucose and blunt the effect of insulin. The impact is usually small but can matter in poorly controlled diabetes.

How serious is the interaction between Chlorothiazide and Insulin detemir?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check blood glucose after starting or adjusting chlorothiazide and titrate insulin detemir as needed; correct potassium depletion.

What other medicines interact with Insulin detemir?

MediHelp also lists interactions of Insulin detemir with, for example, Alogliptin-pioglitazone, Ethanol, Glimepiride-pioglitazone. The full list is on the Insulin detemir 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.

Browse A–Z · Drug interactions

Get the app Sign in