Skip to content

Drug interactions

Chlorthalidone + Epoprostenol

Severity: Moderate

Chlorthalidone and Epoprostenol: 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

Epoprostenol is a potent vasodilator, and with chlorthalidone it may produce additive blood pressure lowering. Diuretic-related volume depletion can increase the risk of symptomatic hypotension.

What this interaction means in plain words

Chlorthalidone and Epoprostenol 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.

Chlorthalidone belongs to Cardiovascular; Epoprostenol belongs to Genitourinary.

Evidence level: Moderate

Why it happens

Additive hypotensive effects from vasodilation and diuretic-induced volume reduction.

What to do

Monitor blood pressure and volume status when starting or titrating either drug. Reduce doses if symptomatic hypotension occurs.

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 Chlorthalidone and Epoprostenol, 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 Epoprostenol?

MediHelp rates the interaction as moderate. Chlorthalidone and Epoprostenol 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. Epoprostenol is a potent vasodilator, and with chlorthalidone it may produce additive blood pressure lowering. Diuretic-related volume depletion can increase the risk of symptomatic hypotension.

How serious is the interaction between Chlorthalidone and Epoprostenol?

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 pressure and volume status when starting or titrating either drug. Reduce doses if symptomatic hypotension occurs.

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