Drug interactions
Magnesium citrate + Spironolactone
Severity: Minor
Magnesium citrate and Spironolactone: 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
Spironolactone is magnesium-sparing and reduces urinary magnesium loss. In patients with reduced kidney function, additional magnesium from a laxative may accumulate, though the effect is usually small with occasional doses.
What this interaction means in plain words
Magnesium citrate and Spironolactone 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 citrate belongs to Gastrointestinal Tract; Spironolactone belongs to Cardiovascular.
Why it happens
Aldosterone antagonism reduces renal magnesium excretion.
What to do
No action is needed in patients with normal renal function. Monitor serum magnesium and potassium if magnesium products are used regularly or renal impairment is 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?
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Other interactions of Magnesium citrate
- Ciprofloxacin + Magnesium citrate Major
- Baloxavir marboxil + Magnesium citrate Moderate
- Bictegravir + Magnesium citrate Moderate
- Cabotegravir + Magnesium citrate Moderate
- Cholecalciferol + Magnesium citrate Moderate
- Deferiprone + Magnesium citrate Moderate
Other interactions of Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone Major
Frequently asked questions
Can I take Magnesium citrate with Spironolactone?
MediHelp rates the interaction as minor. Magnesium citrate and Spironolactone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Spironolactone is magnesium-sparing and reduces urinary magnesium loss. In patients with reduced kidney function, additional magnesium from a laxative may accumulate, though the effect is usually small with occasional doses.
How serious is the interaction between Magnesium citrate and Spironolactone?
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 action is needed in patients with normal renal function. Monitor serum magnesium and potassium if magnesium products are used regularly or renal impairment is present.
What other medicines interact with Magnesium citrate?
MediHelp also lists interactions of Magnesium citrate with, for example, Ciprofloxacin, Baloxavir marboxil, Bictegravir. The full list is on the Magnesium citrate page.
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