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Drug interactions

Fenoprofen + Potassium chloride

Severity: Moderate

Fenoprofen 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 decrease renal potassium excretion and reduce renal function, so potassium chloride supplements may accumulate. This can cause hyperkalemia, particularly in patients with renal impairment or other potassium-raising drugs.

What this interaction means in plain words

Fenoprofen 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.

Fenoprofen belongs to Musculoskeletal; Potassium chloride belongs to Gastrointestinal Tract.

Evidence level: Moderate

Why it happens

Prostaglandin inhibition lowers renin and aldosterone and renal blood flow, reducing potassium excretion.

What to do

Check serum potassium and creatinine periodically and reduce the potassium dose if levels rise. Take extra care in patients with CKD or on RAAS inhibitors.

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 Fenoprofen with Potassium chloride?

MediHelp rates the interaction as moderate. Fenoprofen 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 decrease renal potassium excretion and reduce renal function, so potassium chloride supplements may accumulate. This can cause hyperkalemia, particularly in patients with renal impairment or other potassium-raising drugs.

How serious is the interaction between Fenoprofen 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: Check serum potassium and creatinine periodically and reduce the potassium dose if levels rise. Take extra care in patients with CKD or on RAAS inhibitors.

What other medicines interact with Fenoprofen?

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

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

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