Drug interactions
Diclofenac + Potassium acid
Severity: Moderate
Diclofenac and Potassium acid: 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
Diclofenac can reduce renal potassium excretion and potassium acid phosphate adds a potassium load. The combination may cause hyperkalemia, especially in patients with renal impairment or on other potassium-raising drugs.
What this interaction means in plain words
Diclofenac and Potassium acid 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
Additive hyperkalemia from potassium supplementation and NSAID-induced suppression of renin-aldosterone and renal potassium excretion.
What to do
Monitor serum potassium and renal function, particularly in patients with kidney disease or on ACE inhibitors or ARBs. Adjust potassium dose as needed.
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 Diclofenac
- Diclofenac + Ketorolac Contraindicated
- Diclofenac + Ketorolac intranasal Contraindicated
- Aceclofenac + Diclofenac Major
- Acemetacin + Diclofenac Major
- Alteplase + Diclofenac Major
- Amiloride + Diclofenac Major
Frequently asked questions
Can I take Diclofenac with Potassium acid?
MediHelp rates the interaction as moderate. Diclofenac and Potassium acid 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. Diclofenac can reduce renal potassium excretion and potassium acid phosphate adds a potassium load. The combination may cause hyperkalemia, especially in patients with renal impairment or on other potassium-raising drugs.
How serious is the interaction between Diclofenac and Potassium acid?
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 patients with kidney disease or on ACE inhibitors or ARBs. Adjust potassium dose as needed.
What other medicines interact with Diclofenac?
MediHelp also lists interactions of Diclofenac with, for example, Ketorolac, Ketorolac intranasal, Aceclofenac. The full list is on the Diclofenac page.
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