Skip to content

Drug interactions

Calcium chloride + Captopril-hydrochlorothiazide

Severity: Moderate

Calcium chloride and Captopril-hydrochlorothiazide: 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

Thiazides reduce urinary calcium excretion, so calcium salts can raise serum calcium. This is most relevant with repeated or high-dose calcium administration.

What this interaction means in plain words

Calcium chloride and Captopril-hydrochlorothiazide 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.

Evidence level: High

Why it happens

Thiazides enhance distal tubular calcium reabsorption, reducing renal calcium clearance.

What to do

Monitor serum calcium when calcium is given repeatedly and adjust the calcium dose if levels rise.

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 Calcium chloride and Captopril-hydrochlorothiazide, 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 Calcium chloride with Captopril-hydrochlorothiazide?

MediHelp rates the interaction as moderate. Calcium chloride and Captopril-hydrochlorothiazide 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. Thiazides reduce urinary calcium excretion, so calcium salts can raise serum calcium. This is most relevant with repeated or high-dose calcium administration.

How serious is the interaction between Calcium chloride and Captopril-hydrochlorothiazide?

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 serum calcium when calcium is given repeatedly and adjust the calcium dose if levels rise.

What other medicines interact with Captopril-hydrochlorothiazide?

MediHelp also lists interactions of Captopril-hydrochlorothiazide with, for example, Aliskiren, Dofetilide, Sacubitril / valsartan. The full list is on the Captopril-hydrochlorothiazide 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