Drug interactions
Chlorthalidone + Salsalate
Severity: Minor
Chlorthalidone and Salsalate: 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
Salsalate is a non-acetylated salicylate with weak prostaglandin inhibition, so an interaction with chlorthalidone is modest. Possible blunting of the diuretic effect and renal effects in dehydrated patients are the main concerns.
What this interaction means in plain words
Chlorthalidone and Salsalate 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
Possible mild prostaglandin inhibition reducing natriuresis and renal perfusion; potassium effect unclear.
What to do
Monitor blood pressure and renal function in patients on long-term high doses, particularly the elderly or volume-depleted.
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 Chlorthalidone
Frequently asked questions
Can I take Chlorthalidone with Salsalate?
MediHelp rates the interaction as minor. Chlorthalidone and Salsalate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Salsalate is a non-acetylated salicylate with weak prostaglandin inhibition, so an interaction with chlorthalidone is modest. Possible blunting of the diuretic effect and renal effects in dehydrated patients are the main concerns.
How serious is the interaction between Chlorthalidone and Salsalate?
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 in patients on long-term high doses, particularly the elderly or volume-depleted.
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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