Drug interactions
Ferrous gluconate + Sodium sulfate / ?magnesium sulfate / potassium chloride
Severity: Minor
Ferrous gluconate and Sodium sulfate / ?magnesium sulfate / potassium chloride: minor 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
The oral bowel preparation contains magnesium, which can bind oral iron in the gut and reduce its absorption. Iron therapy may be less effective if given close in time.
What this interaction means in plain words
Ferrous gluconate and Sodium sulfate / ?magnesium sulfate / potassium chloride have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Magnesium cations chelate or bind iron in the gastrointestinal lumen, reducing iron absorption.
What to do
Give oral iron at least 2 hours before and at least 6 hours after each dose of the bowel preparation. Alternatively, hold iron on the day of bowel preparation.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Ferrous gluconate
Frequently asked questions
Can I take Ferrous gluconate with Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates the interaction as minor. Ferrous gluconate and Sodium sulfate / ?magnesium sulfate / potassium chloride have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. The oral bowel preparation contains magnesium, which can bind oral iron in the gut and reduce its absorption. Iron therapy may be less effective if given close in time.
How serious is the interaction between Ferrous gluconate and Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give oral iron at least 2 hours before and at least 6 hours after each dose of the bowel preparation. Alternatively, hold iron on the day of bowel preparation.
What other medicines interact with Ferrous gluconate?
MediHelp also lists interactions of Ferrous gluconate with, for example, Ciprofloxacin, Acetohydroxamic acid, Aluminum hydroxide. The full list is on the Ferrous gluconate page.
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