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antacids and magnesium

PPIs impair magnesium absorption

What's happening

Long-term PPI use associated with hypomagnesemia (low magnesium). FDA issued warning in 2011. Can cause muscle cramps, arrhythmias, seizures. Risk increases with duration.

Recommendation

Monitor magnesium levels on long-term PPIs. Supplement if low.

Timing

Take magnesium supplements at different time than PPI

Sources

  • FDA Drug Safety Communication 2011
  • PMID: 21388145

Frequently Asked Questions

Can I take antacids and magnesium together?

PPIs impair magnesium absorption. Monitor magnesium levels on long-term PPIs. Supplement if low.

How should I time antacids and magnesium?

Take magnesium supplements at different time than PPI

Is this interaction dangerous?

This interaction is rated “Caution” by Formulate. Long-term PPI use associated with hypomagnesemia (low magnesium). FDA issued warning in 2011. Can cause muscle cramps, arrhythmias, seizures. Risk increases with duration.

Want to check your whole stack?

The free checker lets you add any combination of supplements and medications at once. Formulate's desktop app goes further — every stack change surfaces interaction alerts automatically.

Medical disclaimer. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.