Supplement stacks / Magnesium + Metronidazole

Can You Take Magnesium with Metronidazole?

Magnesium and Metronidazole: one interaction flagged, scored 7/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

Safety at a glance

Medium risk
Safety score7/10

This score comes from an AI-written analysis of the pair. Our interaction rules check it and can only make it stricter, never milder. Informational only: it can't account for your medications, conditions, or genetics.

What the AI-written analysis says

Taking magnesium with metronidazole is generally considered safe, but caution is advised due to potential absorption issues. Magnesium may interfere with the absorption of metronidazole, which could reduce the effectiveness of the antibiotic. It is recommended to space the intake of these substances appropriately.

Metronidazole is a prescription medication. This page describes publicly documented interactions — it can't see your dose, your other prescriptions, or your labs. Discuss any supplement with the prescriber or pharmacist who manages this medication before combining.

Known interactions

Magnesium × Metronidazole
medium risk

Magnesium may interfere with the absorption of metronidazole, potentially reducing its effectiveness. It is advisable to separate the intake of these substances by at least 2 hours.

Magnesium

From the AI-written analysis.

Generally safe for most individuals; caution in those with kidney disease as it may lead to toxicity.

Typical dosage: 200-400 mg daily

Common side effects:
  • Diarrhea
  • Nausea
  • Abdominal cramping
Warnings:
  • Avoid in individuals with kidney disease; consult a healthcare provider if you have any underlying health conditions.

Metronidazole

From the AI-written analysis.

Generally safe when prescribed; contraindications include known hypersensitivity and certain drug interactions.

Typical dosage: As prescribed or as directed on the label

Common side effects:
  • Nausea
  • Diarrhea
  • Metallic taste
Warnings:
  • Consult a healthcare provider for potential interactions and contraindications.

Timing

Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it.

Frequently asked questions

Can you take Magnesium and Metronidazole together?

Magnesium and Metronidazole: one interaction flagged, scored 7/10 (medium risk). The count and score come from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice.

What score does the Magnesium and Metronidazole combination get?

The Magnesium and Metronidazole combination is scored 7/10 (medium risk). The score comes from an AI-written analysis checked against our interaction rules, which can only make it stricter. Not medical advice. Always confirm with a healthcare professional.

When should you take Magnesium and Metronidazole?

Take as prescribed — we do not schedule prescription medications. Follow the label or your prescriber, and ask your pharmacist before changing when you take it.

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What your DNA adds

Some genes in a raw 23andMe or AncestryDNA file are linked to how the body handles nutrients. The DNA report says what yours are linked to and, where there is one, which blood test would tell you more.

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AI-written analysis generated August 28, 2026, checked by our interaction rules · How our analysis works