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Drug interactions

Digoxin + Magnesium chloride

Severity: Minor

Digoxin and Magnesium chloride: 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

Digoxin can modestly increase urinary magnesium loss, and hypomagnesemia increases the risk of digoxin toxicity. The effect is usually small, and magnesium supplements are generally appropriate.

What this interaction means in plain words

Digoxin and Magnesium chloride have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Digoxin may increase renal magnesium excretion.

What to do

Monitor serum magnesium in patients on long-term digoxin, especially with diuretics. Correct hypomagnesemia if present.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Digoxin with Magnesium chloride?

MediHelp rates the interaction as minor. Digoxin and Magnesium chloride have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Digoxin can modestly increase urinary magnesium loss, and hypomagnesemia increases the risk of digoxin toxicity. The effect is usually small, and magnesium supplements are generally appropriate.

How serious is the interaction between Digoxin and Magnesium chloride?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum magnesium in patients on long-term digoxin, especially with diuretics. Correct hypomagnesemia if present.

What other medicines interact with Digoxin?

MediHelp also lists interactions of Digoxin with, for example, Lily of the valley, Squill, Adagrasib. The full list is on the Digoxin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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