ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.
Overview
It works like furosemide but at a much smaller dose.
What it's used for
- Fluid buildup and swelling (edema) from heart failure, liver disease, or kidney disease
How to take it
- Take it in the morning (and early afternoon if a second dose) to avoid peeing at night.
- Weigh yourself daily if your provider asks.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Peeing a lot
- Dizziness
- Muscle cramps
- Low potassium
Call your provider todayExtreme thirst, dry mouth, very little urine, confusion, or fainting
Call your provider todayMuscle weakness or cramps with an irregular heartbeat
Call your provider todayRinging in the ears or hearing loss
Warnings
- Boxed warning: too much can cause severe fluid and salt loss.
Other medicines, foods, and alcohol
- Lithium levels can rise.
- NSAIDs can weaken its effect.
- Some antibiotics raise hearing damage risk.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Talk with your provider.
Missed doses, overdose, and storage
If you miss a dose
Take it as soon as you remember, unless it's almost time for your next dose. Then skip the missed dose. Don't take two doses at once.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Bumetanide (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.