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Drug interactions

Magnesium + Triamterene

Severity: Minor

Magnesium and Triamterene: 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

Triamterene is a potassium-sparing diuretic that tends to reduce urinary magnesium loss. Serum magnesium may rise slightly, which is seldom significant except in renal impairment with magnesium supplementation.

What this interaction means in plain words

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

Magnesium belongs to Gastrointestinal Tract; Triamterene belongs to Cardiovascular.

Evidence level: Low

Why it happens

Blockade of epithelial sodium channels in the distal nephron may reduce renal magnesium wasting.

What to do

No routine action is needed. Check serum magnesium in patients with reduced renal function who take magnesium supplements with triamterene.

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 Magnesium with Triamterene?

MediHelp rates the interaction as minor. Magnesium and Triamterene have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Triamterene is a potassium-sparing diuretic that tends to reduce urinary magnesium loss. Serum magnesium may rise slightly, which is seldom significant except in renal impairment with magnesium supplementation.

How serious is the interaction between Magnesium and Triamterene?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine action is needed. Check serum magnesium in patients with reduced renal function who take magnesium supplements with triamterene.

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.

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

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