Drug interactions
Aspirin + Atenolol-chlorthalidone
Severity: Minor
Aspirin and Atenolol-chlorthalidone: 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
At analgesic or anti-inflammatory doses, aspirin may blunt the antihypertensive effect of atenolol and chlorthalidone and reduce renal function in volume-depleted patients. Low-dose aspirin for cardiovascular prevention seldom causes a meaningful interaction.
What this interaction means in plain words
Aspirin and Atenolol-chlorthalidone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Prostaglandin synthesis inhibition causes sodium retention and reduces renal vasodilation, opposing antihypertensive and diuretic effects.
What to do
Monitor blood pressure and renal function when higher aspirin doses are used regularly. No change is usually needed with low-dose aspirin.
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?
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Other interactions of Atenolol-chlorthalidone
Frequently asked questions
Can I take Aspirin with Atenolol-chlorthalidone?
MediHelp rates the interaction as minor. Aspirin and Atenolol-chlorthalidone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. At analgesic or anti-inflammatory doses, aspirin may blunt the antihypertensive effect of atenolol and chlorthalidone and reduce renal function in volume-depleted patients. Low-dose aspirin for cardiovascular prevention seldom causes a meaningful interaction.
How serious is the interaction between Aspirin and Atenolol-chlorthalidone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and renal function when higher aspirin doses are used regularly. No change is usually needed with low-dose aspirin.
What other medicines interact with Atenolol-chlorthalidone?
MediHelp also lists interactions of Atenolol-chlorthalidone with, for example, Acebutolol, Aldesleukin, Amiodarone. The full list is on the Atenolol-chlorthalidone page.
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