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Drug interactions

Deflazacort + Lactulose

Severity: Moderate

Deflazacort and Lactulose: 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

Lactulose-induced diarrhea can cause potassium loss, and deflazacort adds renal potassium wasting. With excessive lactulose dosing, hypokalemia can develop.

What this interaction means in plain words

Deflazacort and Lactulose 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.

Deflazacort belongs to Miscellaneous; Lactulose belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive potassium depletion from diarrheal losses (lactulose) and corticosteroid-related renal potassium excretion.

What to do

Monitor serum potassium, especially with high-dose or prolonged lactulose, and replace potassium as needed. Adjust lactulose to avoid diarrhea.

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 Deflazacort with Lactulose?

MediHelp rates the interaction as moderate. Deflazacort and Lactulose 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. Lactulose-induced diarrhea can cause potassium loss, and deflazacort adds renal potassium wasting. With excessive lactulose dosing, hypokalemia can develop.

How serious is the interaction between Deflazacort and Lactulose?

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, especially with high-dose or prolonged lactulose, and replace potassium as needed. Adjust lactulose to avoid diarrhea.

What other medicines interact with Lactulose?

MediHelp also lists interactions of Lactulose with, for example, Dichlorphenamide, Aluminum hydroxide, Calcium carbonate. The full list is on the Lactulose page.

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