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Drug interactions

Timolol + Tolmetin

Severity: Moderate

Timolol 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

Systemic NSAID use such as tolmetin can diminish the blood pressure lowering effect of beta-blockers like timolol, especially over longer courses. Control of hypertension may worsen.

What this interaction means in plain words

Timolol 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.

Timolol belongs to Cardiovascular; Tolmetin belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

NSAID inhibition of prostaglandin synthesis leads to sodium and fluid retention and reduced vasodilation.

What to do

Monitor blood pressure during prolonged co-therapy and increase antihypertensive therapy if required. Use the lowest NSAID dose for the shortest duration.

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 Timolol with Tolmetin?

MediHelp rates the interaction as moderate. Timolol 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. Systemic NSAID use such as tolmetin can diminish the blood pressure lowering effect of beta-blockers like timolol, especially over longer courses. Control of hypertension may worsen.

How serious is the interaction between Timolol 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: Monitor blood pressure during prolonged co-therapy and increase antihypertensive therapy if required. Use the lowest NSAID dose for the shortest duration.

What other medicines interact with Tolmetin?

MediHelp also lists interactions of Tolmetin with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Tolmetin page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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