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Drug interactions

Ferrous fumarate + Vadadustat

Severity: Moderate

Ferrous fumarate and Vadadustat: 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

Iron salts bind vadadustat in the gut and lower its absorption. This may reduce its effect on hemoglobin in anemia of chronic kidney disease.

What this interaction means in plain words

Ferrous fumarate and Vadadustat 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.

Ferrous fumarate belongs to Miscellaneous; Vadadustat belongs to Endocrine.

Evidence level: Moderate

Why it happens

Iron cations bind vadadustat in the gastrointestinal tract, reducing its absorption.

What to do

Take vadadustat at least 1 hour before oral iron or iron-containing phosphate binders. Monitor hemoglobin response.

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 Ferrous fumarate with Vadadustat?

MediHelp rates the interaction as moderate. Ferrous fumarate and Vadadustat 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. Iron salts bind vadadustat in the gut and lower its absorption. This may reduce its effect on hemoglobin in anemia of chronic kidney disease.

How serious is the interaction between Ferrous fumarate and Vadadustat?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Take vadadustat at least 1 hour before oral iron or iron-containing phosphate binders. Monitor hemoglobin response.

What other medicines interact with Ferrous fumarate?

MediHelp also lists interactions of Ferrous fumarate with, for example, Ciprofloxacin, Acetohydroxamic acid, Aluminum hydroxide. The full list is on the Ferrous fumarate page.

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