Skip to content

Drug interactions

Chlorthalidone + Nitazoxanide

Severity: Minor

Chlorthalidone and Nitazoxanide: 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

Nitazoxanide's active metabolite tizoxanide is highly protein bound, and theoretical displacement of other highly bound drugs has been proposed. No clinically meaningful interaction with chlorthalidone has been established, and chlorthalidone is mostly bound to red blood cells rather than plasma proteins.

What this interaction means in plain words

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

Chlorthalidone belongs to Cardiovascular; Nitazoxanide belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Theoretical plasma protein binding competition; no established clinical mechanism.

What to do

No specific action needed beyond routine monitoring of clinical response.

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 Chlorthalidone and Nitazoxanide, 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 Chlorthalidone with Nitazoxanide?

MediHelp rates the interaction as minor. Chlorthalidone and Nitazoxanide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Nitazoxanide's active metabolite tizoxanide is highly protein bound, and theoretical displacement of other highly bound drugs has been proposed. No clinically meaningful interaction with chlorthalidone has been established, and chlorthalidone is mostly bound to red blood cells rather than plasma proteins.

How serious is the interaction between Chlorthalidone and Nitazoxanide?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action needed beyond routine monitoring of clinical response.

What other medicines interact with Chlorthalidone?

MediHelp also lists interactions of Chlorthalidone with, for example, Amifostine, Atenolol-chlorthalidone, Candesartan-hydrochlorothiazide. The full list is on the Chlorthalidone 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