Drug interactions
Aspirin rectal + Chlorthalidone
Severity: Moderate
Aspirin rectal and Chlorthalidone: 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
Systemically absorbed rectal aspirin at analgesic doses can blunt the diuretic and antihypertensive effects of chlorthalidone and may affect kidney function in volume-depleted patients.
What this interaction means in plain words
Aspirin rectal and Chlorthalidone 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
Salicylate inhibition of renal prostaglandin synthesis reduces sodium excretion and renal perfusion.
What to do
Monitor blood pressure, renal function and hydration with repeated higher-dose use. Use the lowest effective aspirin dose.
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?
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Other interactions of Chlorthalidone
Frequently asked questions
Can I take Aspirin rectal with Chlorthalidone?
MediHelp rates the interaction as moderate. Aspirin rectal and Chlorthalidone 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. Systemically absorbed rectal aspirin at analgesic doses can blunt the diuretic and antihypertensive effects of chlorthalidone and may affect kidney function in volume-depleted patients.
How serious is the interaction between Aspirin rectal and Chlorthalidone?
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, renal function and hydration with repeated higher-dose use. Use the lowest effective aspirin dose.
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.
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