Drug interactions
Cyclophosphamide + Sodium sulfate / ?magnesium sulfate / potassium chloride
Severity: Moderate
Cyclophosphamide and Sodium sulfate / ?magnesium sulfate / 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
This bowel preparation can cause fluid loss and electrolyte disturbances. Cyclophosphamide can itself cause hyponatremia through water retention and can cause renal toxicity, so combining them may increase the risk of dehydration, kidney injury and arrhythmia.
What this interaction means in plain words
Cyclophosphamide and Sodium sulfate / ?magnesium sulfate / 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.
Why it happens
Additive pharmacodynamic effects on fluid and electrolyte balance and renal function.
What to do
Ensure adequate hydration and monitor serum electrolytes and renal function when bowel preparation is given during cyclophosphamide therapy. Correct abnormalities before further chemotherapy.
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 Cyclophosphamide
Frequently asked questions
Can I take Cyclophosphamide with Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates the interaction as moderate. Cyclophosphamide and Sodium sulfate / ?magnesium sulfate / 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. This bowel preparation can cause fluid loss and electrolyte disturbances. Cyclophosphamide can itself cause hyponatremia through water retention and can cause renal toxicity, so combining them may increase the risk of dehydration, kidney injury and arrhythmia.
How serious is the interaction between Cyclophosphamide and Sodium sulfate / ?magnesium sulfate / 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: Ensure adequate hydration and monitor serum electrolytes and renal function when bowel preparation is given during cyclophosphamide therapy. Correct abnormalities before further chemotherapy.
What other medicines interact with Cyclophosphamide?
MediHelp also lists interactions of Cyclophosphamide with, for example, Adenovirus types 4 and 7 live, Belatacept, Bendamustine. The full list is on the Cyclophosphamide page.
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