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Drug interactions

Cisplatin + Deflazacort

Severity: Moderate

Cisplatin and Deflazacort: 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

Cisplatin causes renal magnesium and potassium wasting, and deflazacort, a corticosteroid, can also lower serum potassium. Together they may produce clinically significant hypokalemia, with arrhythmia risk in vulnerable patients.

What this interaction means in plain words

Cisplatin and Deflazacort 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.

Cisplatin belongs to Oncology; Deflazacort belongs to Miscellaneous.

Evidence level: Moderate

Why it happens

Additive potassium loss from cisplatin renal tubular toxicity and corticosteroid mineralocorticoid activity.

What to do

Monitor serum potassium and magnesium during therapy and replace as needed. Take extra care in patients on other QT-prolonging drugs or with heart disease.

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 Cisplatin with Deflazacort?

MediHelp rates the interaction as moderate. Cisplatin and Deflazacort 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. Cisplatin causes renal magnesium and potassium wasting, and deflazacort, a corticosteroid, can also lower serum potassium. Together they may produce clinically significant hypokalemia, with arrhythmia risk in vulnerable patients.

How serious is the interaction between Cisplatin and Deflazacort?

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 magnesium during therapy and replace as needed. Take extra care in patients on other QT-prolonging drugs or with heart disease.

What other medicines interact with Cisplatin?

MediHelp also lists interactions of Cisplatin with, for example, Cidofovir, Adefovir, Adenovirus types 4 and 7 live. The full list is on the Cisplatin page.

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

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