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Drug interactions

Captopril-hydrochlorothiazide + Salsalate

Severity: Moderate

Captopril-hydrochlorothiazide and Salsalate: 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

Salsalate is a non-acetylated salicylate with weaker effects on renal prostaglandins than most NSAIDs, so the interaction is probably smaller. Higher doses may nonetheless blunt antihypertensive effects and affect renal function.

What this interaction means in plain words

Captopril-hydrochlorothiazide and Salsalate 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.

Evidence level: Low

Why it happens

Salicylate-related reduction in renal prostaglandin synthesis may lower renal perfusion and oppose blood pressure control.

What to do

Monitor blood pressure and serum creatinine when starting or adjusting salsalate, and ensure 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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Captopril-hydrochlorothiazide with Salsalate?

MediHelp rates the interaction as moderate. Captopril-hydrochlorothiazide and Salsalate 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. Salsalate is a non-acetylated salicylate with weaker effects on renal prostaglandins than most NSAIDs, so the interaction is probably smaller. Higher doses may nonetheless blunt antihypertensive effects and affect renal function.

How serious is the interaction between Captopril-hydrochlorothiazide and Salsalate?

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 and serum creatinine when starting or adjusting salsalate, and ensure 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.

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