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General Information
Brand names and manufacturer
Type: OTC/Prescription/schedule

What should I know before taking this drug
Dosage information
Adverse reactions
Additional information if any

Fru amp (Ind-Swift)
Frusix inj (Cipla)

Furosemide is a prescription drug available from your pharmacy store only with the prescription of a qualified medical practitioner.

Furosemide is pronounced as: fure-OH-se-mide

Furosemide is a loop-diuretic which helps in removing excess fluid from the body. Hence, it’s also known as “water-pill”.

Furosemide is used in treatment of following conditions

  • Hypertension 
  • Excessive fluid retention as in cardiac failure, cirrhosis, chronic renal failure, Nephrotic syndrome, Cushing’s disease
  • Oliguria due to acute or chronic renal failure.
  • Take furosemide exactly as prescribed by your doctor. If do not understand these instructions ask your pharmacist, nurse or doctor to explain them to you.
  • Do not take the medication in larger amounts or for longer duration than recommended by your doctor. Take this medication with a full glass of water.
  • Take furosemide preferably during daytime to avoid waking up during night for urination.
  • Take plenty of oral fluids when on furosemide and avoid dehydration.
  • Do not skip doses or stop taking furosemide without consulting your doctor. Stopping suddenly may worsen hypertension.
  • Inform your doctor if you are allergic to sulpha drugs like sulphamethoxazole, etc as it may cause allergic reaction in these patients also.
  • Always remember to inform your health expert if you are currently taking any OTC or prescription drugs like,
    1. Aminoglycoside antibiotics like Gentamicin, erythromycin
    2. Cephalosporin antibiotics like Cephalexin, ceftriaxone
    3. NSAIDs(Non steroidal anti inflammatory drugs) like aspirin, Indomethacin Ibuprofen, Diclofenac etc
    4. Corticosteroids like prednisone
    5. Lithium (mood stabilizer)
    6. Digoxin
    7. Insulin or oral hypoglycaemic drugs
    8. Other Anti hypertensive drugs
  • Inform your doctor if you have following medical diseases , as Furosemide should be used cautiously in these conditions
    1. Liver disease
    2. Kidney disease
    3. Addison’s disease
    4. Anuria( passing no urine at all)
    5. Electrolyte disturbance
    6. Diabetes
    7. Gout

Do not use furosemide if you have difficulty to pass the urine or you are sensitive to sulphonamides.

Old people:
Pregnant woman: Furosemide belongs to FDA pregnancy category C. This means that furosemide may harm an unborn baby if used during pregnancy but potential benefit may warrant use of the drug in pregnant woman despite potential risks. Always inform your doctor if you are pregnant or are planning for conception. 

Lactating women: It is not known whether furosemide passes into breast milk or if it could harm the baby. Do not take furosemide with out first talking to doctor if you are breast feeding a baby.
Other: If you are diabetic on furosemide, keep a close watch on your blood glucose levels.

Furosemide is available in the form of tablet and injection.

Use as directed by your physician, your physician prescribes depending on the severity of disease. Use the complete course of medication as prescribed by your physician even though you feel better after one or two days of usage of medication.

If it is almost the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not take two doses at same time to cover up the missed dose.

In case of overdose contact your nearest poison control centre or emergency medical centre for immediate care by physician.
The overdose symptoms of furosemide are
  1. Muscle cramps
  2. Irregular heartbeat
  3. Palpitations
  4. Confusion, restlessness, lethargy
  5. Very dry mouth , increased thirst

Furosemide may cause following side effects

  • Rash 
  • Nausea & vomiting
  • Diarrhoea 
  • Loss of appetite
  • Blurring of vision 
  • Dizziness
  • Increased sensitivity to light

Consult your doctor immediately if notice following symptoms.

  • Allergic reaction like swollen lips, hives, difficulty in breathing, rashes. Peeling of skin etc 
  • Jaundice (yellowing of eyes, skin)
  • Increased thirst, dry mouth
  • Muscle pain & weakness
  • Numbness & tingling sensation
  • Extreme weakness, drowsiness, irritability
  • Fast irregular heartbeat
  • Easy bruising and bleeding
  • Decrease in hearing, ringing sensation in ears( tinnitus)
  • Decrease in the amount of urine passed or no urine at all

Store furosemide at room temp (15 – 30 degrees C). Avoid excessive heat, moisture or direct sunlight, never store in the bathroom.
Keep it out of reach of children. Make sure that any leftover portion is disposed off safely.

  • Furosemide causes dizziness as side effect which worsens with intake of alcohol. Avoid activities which require you to be alert like driving, operating heavy machinery etc.
  • Your doctor may prescribe potassium supplement along with furosemide medication as it depletes potassium from the body. Do not increase or decrease the dose without your doctor’s advice
  • Regular monitoring of body electrolyte, renal function and complete cell counts is required when on furosemide to look for side effects.
  • Furosemide sensitizes the skin to sunlight. Avoid prolong exposure to sunlight or wear long sleeved clothing& use sunscreen when you go out in sun.
  • Visit your doctor regularly for monitoring your blood pressure and pulse rate when taking furosemide.
  • Hypertension often has no symptoms, so you may not even feel that you have high blood pressure. Continue using this medicine as directed, even if you feel well. You may need to use blood pressure medication for the rest of your life.
  • Adopt healthy lifestyle changes like regular exercise, healthy diet, quit smoking, alcohol to lower your blood pressure and improve your overall health.
It is imp to read manufacturing packaging instruction carefully if available and always do not hesitate to consult pharmacist or physician for any information.

Written by: Healthplus24 team
Date last modified: May 31, 2012