Drug interactions
Potassium acid + Tolmetin
Severity: Moderate
Potassium acid 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
NSAIDs can reduce renal potassium excretion by suppressing renin and aldosterone, and potassium phosphate supplements add a potassium load. Hyperkalaemia is possible, especially with renal impairment.
What this interaction means in plain words
Potassium acid 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.
Why it happens
NSAID-induced hyporeninemic hypoaldosteronism and reduced renal potassium excretion add to supplemental potassium intake.
What to do
Monitor serum potassium and renal function, particularly in older patients or those with kidney disease. Adjust the potassium dose if levels rise.
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?
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Other interactions of Tolmetin
- Ketorolac intranasal + Tolmetin Contraindicated
- Ketorolac + Tolmetin Contraindicated
- Aceclofenac + Tolmetin Major
- Acemetacin + Tolmetin Major
- Alteplase + Tolmetin Major
- Amlodipine-hydrochlorothiazide-valsartan + Tolmetin Major
Frequently asked questions
Can I take Potassium acid with Tolmetin?
MediHelp rates the interaction as moderate. Potassium acid 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. NSAIDs can reduce renal potassium excretion by suppressing renin and aldosterone, and potassium phosphate supplements add a potassium load. Hyperkalaemia is possible, especially with renal impairment.
How serious is the interaction between Potassium acid 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 serum potassium and renal function, particularly in older patients or those with kidney disease. Adjust the potassium dose if levels rise.
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.
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