Drug interactions
Iron + Sodium bicarbonate
Severity: Moderate
Iron and Sodium bicarbonate: 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
Sodium bicarbonate neutralizes gastric acid and can lower the absorption of oral iron. Iron therapy may become less effective if both are taken together regularly.
What this interaction means in plain words
Iron and Sodium bicarbonate 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 belongs to Gastrointestinal Tract; Sodium bicarbonate belongs to Gastrointestinal Tract.
Why it happens
Higher gastric pH reduces iron solubility and absorption; bicarbonate may also form poorly soluble iron complexes.
What to do
Separate oral iron from sodium bicarbonate by at least 2 hours. Monitor hemoglobin and ferritin if antacid use is frequent.
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 Iron
- Acetohydroxamic acid + Iron Moderate
- Aluminum hydroxide + Iron Moderate
- Baloxavir marboxil + Iron Moderate
- Calcium acetate + Iron Moderate
- Calcium carbonate + Iron Moderate
- Calcium citrate + Iron Moderate
Other interactions of Sodium bicarbonate
- Acetylsalicylic acid + Sodium bicarbonate Moderate
- Alendronate + Sodium bicarbonate Moderate
- Amantadine + Sodium bicarbonate Moderate
- Carbonyl iron + Sodium bicarbonate Moderate
- Cefditoren + Sodium bicarbonate Moderate
- Cefpodoxime + Sodium bicarbonate Moderate
Frequently asked questions
Can I take Iron with Sodium bicarbonate?
MediHelp rates the interaction as moderate. Iron and Sodium bicarbonate 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. Sodium bicarbonate neutralizes gastric acid and can lower the absorption of oral iron. Iron therapy may become less effective if both are taken together regularly.
How serious is the interaction between Iron and Sodium bicarbonate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Separate oral iron from sodium bicarbonate by at least 2 hours. Monitor hemoglobin and ferritin if antacid use is frequent.
What other medicines interact with Iron?
MediHelp also lists interactions of Iron with, for example, Acetohydroxamic acid, Aluminum hydroxide, Baloxavir marboxil. The full list is on the Iron page.
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