Drug interactions
Calcium chloride + Ferrous fumarate
Severity: Minor
Calcium chloride and Ferrous fumarate: 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
Oral calcium can reduce the absorption of oral iron when taken together. This may lessen the effect of iron supplementation.
What this interaction means in plain words
Calcium chloride and Ferrous fumarate 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
Calcium competes with iron for intestinal absorption through shared uptake pathways.
What to do
Take iron at least 2 hours apart from oral calcium preparations. Monitor iron indices if both are long-term.
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 fumarate
Frequently asked questions
Can I take Calcium chloride with Ferrous fumarate?
MediHelp rates the interaction as minor. Calcium chloride and Ferrous fumarate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oral calcium can reduce the absorption of oral iron when taken together. This may lessen the effect of iron supplementation.
How serious is the interaction between Calcium chloride and Ferrous fumarate?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Take iron at least 2 hours apart from oral calcium preparations. Monitor iron indices if both are long-term.
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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