Skip to content

Drug interactions

Chlorothiazide + Exenatide

Severity: Moderate

Chlorothiazide and Exenatide: 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

Thiazide diuretics can reduce insulin sensitivity and raise blood glucose, which may offset the benefit of exenatide. The effect is dose-related and most noticeable early in therapy or when doses increase.

What this interaction means in plain words

Chlorothiazide and Exenatide 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.

Chlorothiazide belongs to Cardiovascular; Exenatide belongs to Endocrine.

Evidence level: Moderate

Why it happens

Thiazide-induced hypokalemia and reduced insulin sensitivity oppose the glucose-lowering action of exenatide (pharmacodynamic antagonism).

What to do

Monitor blood glucose and potassium when starting, stopping, or changing the thiazide dose, and adjust antidiabetic therapy as needed.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Chlorothiazide and Exenatide, 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 14 days on the web. No card needed.

Frequently asked questions

Can I take Chlorothiazide with Exenatide?

MediHelp rates the interaction as moderate. Chlorothiazide and Exenatide 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. Thiazide diuretics can reduce insulin sensitivity and raise blood glucose, which may offset the benefit of exenatide. The effect is dose-related and most noticeable early in therapy or when doses increase.

How serious is the interaction between Chlorothiazide and Exenatide?

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 and potassium when starting, stopping, or changing the thiazide dose, and adjust antidiabetic therapy as needed.

What other medicines interact with Exenatide?

MediHelp also lists interactions of Exenatide with, for example, Chlorpropamide, Asenapine, Betamethasone. The full list is on the Exenatide 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