Drug interactions
Ferrous fumarate + Minocycline
Severity: Moderate
Ferrous fumarate and Minocycline: 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
Oral iron binds minocycline in the gut, forming poorly absorbed complexes. This can lower minocycline levels and reduce antibacterial effect, though the effect is smaller than with older tetracyclines.
What this interaction means in plain words
Ferrous fumarate and Minocycline 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; Minocycline belongs to Anti Bacterial.
Why it happens
Chelation of minocycline by ferrous iron in the gastrointestinal tract, reducing absorption.
What to do
Give oral minocycline at least 2 hours before or 3 to 4 hours after the iron preparation. Monitor clinical response if separation is not possible.
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 Minocycline
- Acitretin + Minocycline Contraindicated
- Isotretinoin + Minocycline Contraindicated
- Cholera vaccine + Minocycline Major
- Methoxyflurane + Minocycline Major
- Minocycline + Palovarotene Major
- Minocycline + Pexidartinib Major
Other interactions of Ferrous fumarate
Frequently asked questions
Can I take Ferrous fumarate with Minocycline?
MediHelp rates the interaction as moderate. Ferrous fumarate and Minocycline 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. Oral iron binds minocycline in the gut, forming poorly absorbed complexes. This can lower minocycline levels and reduce antibacterial effect, though the effect is smaller than with older tetracyclines.
How serious is the interaction between Ferrous fumarate and Minocycline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give oral minocycline at least 2 hours before or 3 to 4 hours after the iron preparation. Monitor clinical response if separation is not possible.
What other medicines interact with Minocycline?
MediHelp also lists interactions of Minocycline with, for example, Acitretin, Isotretinoin, Cholera vaccine. The full list is on the Minocycline page.
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