Drug interactions
Hydrochlorothiazide + Salicylates
Severity: Minor
Hydrochlorothiazide and Salicylates: 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
Non-acetylated salicylates have less prostaglandin inhibition than other NSAIDs, so effects on thiazide efficacy are generally smaller. High doses may still impair renal function and reduce diuretic effect.
What this interaction means in plain words
Hydrochlorothiazide and Salicylates 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
Limited renal prostaglandin inhibition may modestly reduce natriuresis; high-dose salicylate may compete for tubular secretion.
What to do
Monitor blood pressure and renal function if high-dose salicylates are used long term.
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 Hydrochlorothiazide
Frequently asked questions
Can I take Hydrochlorothiazide with Salicylates?
MediHelp rates the interaction as minor. Hydrochlorothiazide and Salicylates have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Non-acetylated salicylates have less prostaglandin inhibition than other NSAIDs, so effects on thiazide efficacy are generally smaller. High doses may still impair renal function and reduce diuretic effect.
How serious is the interaction between Hydrochlorothiazide and Salicylates?
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 if high-dose salicylates are used long term.
What other medicines interact with Hydrochlorothiazide?
MediHelp also lists interactions of Hydrochlorothiazide with, for example, Dofetilide, Amifostine, Amiodarone. The full list is on the Hydrochlorothiazide page.
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