Drug interactions
Magnesium + Minocycline
Severity: Moderate
Magnesium 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 magnesium can bind minocycline in the intestine and decrease its absorption, risking reduced antibacterial effect.
What this interaction means in plain words
Magnesium 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.
Magnesium belongs to Gastrointestinal Tract; Minocycline belongs to Anti Bacterial.
Why it happens
Magnesium cations chelate minocycline in the gut lumen, forming insoluble complexes.
What to do
Take minocycline at least 2 hours before or 4 hours after magnesium products. Monitor clinical 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?
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Other interactions of Magnesium
- Ciprofloxacin + Magnesium Major
- Magnesium + Pancuronium Major
- Magnesium + Rocuronium Major
- Magnesium + Vecuronium Major
- Amikacin + Magnesium Moderate
- Amphotericin b deoxycholate + Magnesium Moderate
Other interactions of Minocycline
- Acitretin + Minocycline Contraindicated
- Isotretinoin + Minocycline Contraindicated
- Cholera vaccine + Minocycline Major
- Methoxyflurane + Minocycline Major
- Minocycline + Palovarotene Major
- Minocycline + Pexidartinib Major
Frequently asked questions
Can I take Magnesium with Minocycline?
MediHelp rates the interaction as moderate. Magnesium 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 magnesium can bind minocycline in the intestine and decrease its absorption, risking reduced antibacterial effect.
How serious is the interaction between Magnesium 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: Take minocycline at least 2 hours before or 4 hours after magnesium products. Monitor clinical response.
What other medicines interact with Magnesium?
MediHelp also lists interactions of Magnesium with, for example, Ciprofloxacin, Pancuronium, Rocuronium. The full list is on the Magnesium page.
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