Drug interactions
Aspirin + Captopril-hydrochlorothiazide
Severity: Moderate
Aspirin 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
NSAIDs can blunt the blood pressure lowering effect of ACE inhibitors and thiazides and can impair renal function, especially in volume-depleted or elderly patients. With a diuretic plus an ACE inhibitor, the risk of acute kidney injury is higher. Low-dose aspirin for cardioprotection carries less risk than analgesic doses.
What this interaction means in plain words
Aspirin 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.
Why it happens
Inhibition of vasodilatory renal prostaglandin synthesis reduces renal perfusion and antagonizes antihypertensive effects.
What to do
Prefer low-dose aspirin where aspirin is indicated and avoid regular analgesic doses; monitor blood pressure, serum creatinine and potassium, and ensure adequate hydration.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Aspirin 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 7 days on the web. No card needed.
Other interactions of Captopril-hydrochlorothiazide
- Aliskiren + Captopril-hydrochlorothiazide Contraindicated
- Captopril-hydrochlorothiazide + Dofetilide Contraindicated
- Captopril-hydrochlorothiazide + Sacubitril / valsartan Contraindicated
- Aceclofenac + Captopril-hydrochlorothiazide Major
- Aldesleukin + Captopril-hydrochlorothiazide Major
- Amifostine + Captopril-hydrochlorothiazide Major
Frequently asked questions
Can I take Aspirin with Captopril-hydrochlorothiazide?
MediHelp rates the interaction as moderate. Aspirin 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. NSAIDs can blunt the blood pressure lowering effect of ACE inhibitors and thiazides and can impair renal function, especially in volume-depleted or elderly patients. With a diuretic plus an ACE inhibitor, the risk of acute kidney injury is higher. Low-dose aspirin for cardioprotection carries less risk than analgesic doses.
How serious is the interaction between Aspirin 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: Prefer low-dose aspirin where aspirin is indicated and avoid regular analgesic doses; monitor blood pressure, serum creatinine and potassium, and ensure adequate hydration.
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.
