Generic name: Bumetanide.

Bumex is a loop diuretic. It promotes water and salt loss in the body.

Quick Facts About Bumex


Used to treat fluid retention associated with congestive heart failure, and liver or kidney disease. Also occasionally prescribed to treat high blood pressure.

Bumex Dosage

Take in the morning after breakfast with a single daily dose; with more than I dose per day, take last dose no later than 6:00 PM, as it may increase the frequency of urination, causing sleep loss if taken at night.

  • Usual adult dose: 0.5 to 2.0 milligrams per day, taken in a single daily dose. Doctor may increase if necessary, to 2 or 3 doses per day, not to exceed 10 milligrams. For continuing control of fluid retention — alternate days or for 3 to 4 days at a time with rest periods of I to 2 days in between. If prescribed dose is exceeded, can severely decrease water and mineral levels in the body, especially potassium.
  • Usual child dose: not generally prescribed for children.
  • Missed dose: take as soon as possible, unless almost time for next dose. In that case, do not take missed dose; go back to regular schedule. Do not double doses.

Bumex Side Effects

Overdose symptoms:

cramps, dizziness, lethargy, loss or lack of appetite, mental confusion, vomiting, weakness. Overdose may lead to: severe dehydration, reduction of blood volume, and severe problems with circulatory system. If you suspect an overdose, immediately seek medical attention.

More common side effects: dizziness, headache, low blood pressure, muscle cramps, nausea. Signs of too much potassium loss: dry mouth, irregular heartbeat, muscle cramps or pain, unusual tiredness or weakness.

Less common Bumex side effects: abdominal pain, black stools, chest pain, dehydration, diarrhea, dry mouth, ear discomfort, fatigue, hearing loss, itching, joint pain, kidney failure, muscle and bone pain, nipple tenderness, premature ejaculation, rapid breathing, skin rash or hives, sweating, upset stomach, vertigo, vomiting, weakness.


Inform your doctor before combining Bumex with:

blood pressure medications such as Vasotec and Tenormin; Indomethacin (Indocin and other nonsteroidal anti-inflammatory drugs), probenecid (Benemid). Combining with chemotherapy agent such as Cisplatin (Platinol) may cause hearing loss. Combining with Digitalis or Digoxin (Lanoxin) may cause changes in heartbeat. Combining with Lithium (Lithonate) may increase levels of lithium in the body to a poisonous level.

No known food/other substance interactions.

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. Not known if Bumex appears in breast milk.

No special precautions apply to seniors.

Not generally prescribed for children.

  • Should not take if unable to urinate or are dehydrated.
  • Should not take if sensitive to or allergic to this or similar medications.
  • Inform your doctor of sensitivity to sulfur medications before taking Bumex.
  • Blood status should be regularly monitored when taking Bumex.
  • May require potassium supplement or doctor may recommend foods and fluids high in potassium.
  • If you experience light-headedness or if you faint when standing from a sitting or lying position, notify your doctor.


HealthSurvey.org provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Bumex side effects, please contact your healthcare provider.