Drug interactions
Diclofenac + Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol
Severity: Moderate
Diclofenac and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol: 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 promote water retention and impair free water excretion, and large-volume bowel preparations shift fluid and electrolytes. Together they may increase the risk of hyponatremia and renal injury.
What this interaction means in plain words
Diclofenac and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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 prostaglandin inhibition reduces renal perfusion and water excretion while bowel preparation causes fluid and electrolyte shifts.
What to do
Avoid diclofenac around the time of bowel preparation when feasible and ensure adequate hydration. Check sodium and renal function if symptoms such as nausea, confusion or reduced urine output arise.
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 Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?
MediHelp rates the interaction as moderate. Diclofenac and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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 promote water retention and impair free water excretion, and large-volume bowel preparations shift fluid and electrolytes. Together they may increase the risk of hyponatremia and renal injury.
How serious is the interaction between Diclofenac and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid diclofenac around the time of bowel preparation when feasible and ensure adequate hydration. Check sodium and renal function if symptoms such as nausea, confusion or reduced urine output arise.
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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