Drug interactions
Magnesium sulfate + Torsemide
Severity: Minor
Magnesium sulfate and Torsemide: 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
Torsemide increases urinary magnesium excretion and may lower magnesium levels. With parenteral magnesium sulfate the effect is of limited importance, but it may shorten the duration of magnesium repletion.
What this interaction means in plain words
Magnesium sulfate and Torsemide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Loop diuretic inhibition of thick ascending limb reabsorption increases renal magnesium loss.
What to do
Monitor serum magnesium after repletion and repeat dosing if levels fall while torsemide continues.
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 Torsemide
Frequently asked questions
Can I take Magnesium sulfate with Torsemide?
MediHelp rates the interaction as minor. Magnesium sulfate and Torsemide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Torsemide increases urinary magnesium excretion and may lower magnesium levels. With parenteral magnesium sulfate the effect is of limited importance, but it may shorten the duration of magnesium repletion.
How serious is the interaction between Magnesium sulfate and Torsemide?
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 after repletion and repeat dosing if levels fall while torsemide continues.
What other medicines interact with Torsemide?
MediHelp also lists interactions of Torsemide with, for example, Amikacin, Amiodarone, Carbenoxolone. The full list is on the Torsemide page.
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