Medication·Interactions & depletion·Reviewed June 9, 2026
Furosemide interactions.
Furosemide has 9 documented interactions in the NutriStack database. Prolonged use is also associated with lower Potassium, Magnesium, Calcium, and Sodium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Furosemide at a glance.
A quick, data-grounded summary. The full tables are below.
Furosemide has 9 documented interactions in the NutriStack database. Prolonged use is also associated with lower Potassium, Magnesium, Calcium, and Sodium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Substances that interact with furosemide.
Every supplement and medication in the NutriStack database with a documented interaction with this drug, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Alcohol | Caution | Furosemide can cause volume depletion, electrolyte loss, and orthostatic symptoms. Alcohol can impair vasoconstriction during standing and can... details → |
| Lithium | Caution | Loop diuretics can increase lithium levels through volume depletion, though the effect is generally less predictable than with thiazide diuretics.... details → |
| Metformin | Caution | Furosemide can cause volume depletion and renal impairment, which increases the risk of metformin-associated lactic acidosis. This is particularly... details → |
| Magnesium Citrate | Synergy | Furosemide can increase urinary magnesium loss during chronic therapy. Magnesium citrate may help replete magnesium when levels are low, but... details → |
| Magnesium Glycinate | Synergy | Furosemide depletes magnesium through its action on the thick ascending limb, where the majority of magnesium reabsorption occurs. Loop... details → |
| Magnesium Malate | Synergy | Furosemide can waste magnesium through the kidney, especially with higher doses or long-term use. Magnesium malate is a magnesium-containing... details → |
| Magnesium Taurate | Synergy | Furosemide can cause clinically relevant magnesium depletion by increasing urinary magnesium excretion. Magnesium taurate may help replace... details → |
| Potassium | Synergy | Furosemide is a potent loop diuretic that can cause clinically important potassium wasting. Severe hypokalemia can be life-threatening, but... details → |
| Vitamin B1 | Synergy | Long-term furosemide therapy can increase urinary thiamine loss and has been linked with biochemical Vitamin B1 deficiency, especially in heart... details → |
What furosemide can deplete.
Nutrients this medication is associated with lowering over time, with the mechanism, a suggested replacement where one applies, and the biomarker to monitor. Discuss any replacement with your prescriber first.
| Nutrient | Severity | How it happens | Replace with | Monitor |
|---|---|---|---|---|
| Potassium | Significant | Loop diuresis can sharply increase distal sodium delivery and urinary potassium secretion, creating clinically important potassium wasting that... | Clinician-guided potassium repletion if serum potassium is low | Serum potassium + kidney function |
| Magnesium | Significant | Loop diuretics reduce paracellular magnesium reabsorption in the thick ascending limb, increasing renal losses. | Magnesium Glycinate | Serum magnesium or RBC magnesium |
| Calcium | Moderate | Loop diuretics reduce calcium reabsorption in the thick ascending limb, increasing urinary calcium loss. | Calcium | Serum calcium |
| Sodium | Moderate | Potent natriuresis can produce hyponatremia, especially with higher doses or high free-water intake. | – | Serum sodium |
| Zinc | Mild | Chronic loop diuretic use can increase urinary zinc excretion and lower zinc balance over time. | Zinc Picolinate | Serum zinc |
| Thiamine | Moderate | Chronic high urine flow increases renal thiamine losses and can worsen marginal thiamine status. | Vitamin B1 | Whole blood thiamine |
The full furosemide profile.
Uses, typical dosing, side effects, and the cited evidence for this medication.
Common furosemide questions.
Quick answers drawn from the tables above.
What interacts with Furosemide?
In the NutriStack database, Furosemide has 9 documented interactions. The most notable include Alcohol, Lithium, Metformin, Magnesium Citrate, and Magnesium Glycinate. Check any specific combination before taking it and confirm with your prescriber.
Does Furosemide deplete any nutrients?
Furosemide is associated with lowering Potassium, Magnesium, Calcium, Sodium, Zinc, and Thiamine with prolonged use. Useful biomarkers to monitor include Serum potassium + kidney function, Serum magnesium or RBC magnesium, and Serum calcium. Ask your prescriber before adding any replacement supplement.
Is it safe to take Alcohol with Furosemide?
NutriStack classifies the Alcohol and Furosemide pairing as caution: Furosemide can cause volume depletion, electrolyte loss, and orthostatic symptoms. Alcohol can impair vasoconstriction during standing and can worsen dehydration risk,... Limit alcohol while using furosemide, especially around dose changes or when you are already dehydrated. Stand slowly, maintain appropriate fluid... Always confirm with your prescriber.
Check your whole stack
See how furosemide fits your supplements.
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