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Drug interactions

Budesonide + Furosemide

Severity: Moderate

Budesonide and Furosemide: 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

Loop diuretics increase urinary potassium loss, and corticosteroids can add to this through mineralocorticoid effects. With systemic budesonide exposure the combination may produce clinically relevant hypokalemia. The risk is higher with oral, high-dose or CYP3A4-inhibited budesonide.

What this interaction means in plain words

Budesonide and Furosemide 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.

Budesonide belongs to Respiratory; Furosemide belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic potassium wasting from loop diuretic action and glucocorticoid mineralocorticoid effect.

What to do

Monitor serum potassium and magnesium during co-therapy, particularly with oral or high-dose budesonide. Supplement potassium or adjust therapy if hypokalemia develops.

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 Budesonide with Furosemide?

MediHelp rates the interaction as moderate. Budesonide and Furosemide 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. Loop diuretics increase urinary potassium loss, and corticosteroids can add to this through mineralocorticoid effects. With systemic budesonide exposure the combination may produce clinically relevant hypokalemia. The risk is higher with oral, high-dose or CYP3A4-inhibited budesonide.

How serious is the interaction between Budesonide and Furosemide?

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 co-therapy, particularly with oral or high-dose budesonide. Supplement potassium or adjust therapy if hypokalemia develops.

What other medicines interact with Budesonide?

MediHelp also lists interactions of Budesonide with, for example, Aldesleukin, Atazanavir, Bcg vaccine live. The full list is on the Budesonide page.

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