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Drug interactions

Hydrochlorothiazide-telmisartan + Tolmetin

Severity: Moderate

Hydrochlorothiazide-telmisartan and Tolmetin: 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

Tolmetin, an NSAID, can blunt the blood-pressure-lowering effect of telmisartan and hydrochlorothiazide. With a diuretic and an angiotensin receptor blocker, NSAIDs raise the risk of acute kidney injury and hyperkalemia, particularly in elderly or volume-depleted patients.

What this interaction means in plain words

Hydrochlorothiazide-telmisartan and Tolmetin 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.

Hydrochlorothiazide-telmisartan belongs to Cardiovascular; Tolmetin belongs to Musculoskeletal.

Evidence level: High

Why it happens

NSAIDs inhibit vasodilatory renal prostaglandins, reducing renal perfusion and sodium excretion and impairing glomerular filtration during angiotensin receptor blockade.

What to do

Prefer a non-NSAID analgesic where possible; otherwise use the lowest dose briefly with adequate hydration. Monitor blood pressure, creatinine and potassium.

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 Hydrochlorothiazide-telmisartan with Tolmetin?

MediHelp rates the interaction as moderate. Hydrochlorothiazide-telmisartan and Tolmetin 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. Tolmetin, an NSAID, can blunt the blood-pressure-lowering effect of telmisartan and hydrochlorothiazide. With a diuretic and an angiotensin receptor blocker, NSAIDs raise the risk of acute kidney injury and hyperkalemia, particularly in elderly or volume-depleted patients.

How serious is the interaction between Hydrochlorothiazide-telmisartan and Tolmetin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer a non-NSAID analgesic where possible; otherwise use the lowest dose briefly with adequate hydration. Monitor blood pressure, creatinine and potassium.

What other medicines interact with Hydrochlorothiazide-telmisartan?

MediHelp also lists interactions of Hydrochlorothiazide-telmisartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-telmisartan page.

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