Drug interactions
Diflunisal + Potassium chloride
Severity: Moderate
Diflunisal and Potassium chloride: 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 via prostaglandin inhibition. With potassium chloride this can cause hyperkalemia, particularly in renal impairment. Oral potassium chloride may also add to gastrointestinal mucosal injury.
What this interaction means in plain words
Diflunisal and Potassium chloride 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.
Diflunisal belongs to Musculoskeletal; Potassium chloride belongs to Gastrointestinal Tract.
Why it happens
Prostaglandin inhibition reduces renin-aldosterone activity and renal potassium excretion, adding to potassium load.
What to do
Monitor serum potassium and renal function during combined use, especially in the elderly or those with kidney disease. Adjust the 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 Diflunisal
- Diflunisal + Ketorolac Contraindicated
- Diflunisal + Ketorolac intranasal Contraindicated
- Acemetacin + Diflunisal Major
- Acetazolamide + Diflunisal Major
- Alteplase + Diflunisal Major
- Amiloride + Diflunisal Major
Other interactions of Potassium chloride
Frequently asked questions
Can I take Diflunisal with Potassium chloride?
MediHelp rates the interaction as moderate. Diflunisal and Potassium chloride 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 via prostaglandin inhibition. With potassium chloride this can cause hyperkalemia, particularly in renal impairment. Oral potassium chloride may also add to gastrointestinal mucosal injury.
How serious is the interaction between Diflunisal and Potassium chloride?
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 during combined use, especially in the elderly or those with kidney disease. Adjust the potassium dose as needed.
What other medicines interact with Diflunisal?
MediHelp also lists interactions of Diflunisal with, for example, Ketorolac, Ketorolac intranasal, Acemetacin. The full list is on the Diflunisal page.
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