Furosemide is a diuretic which assists the body to flush out excess fluid and salt.
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Lasix is the generic name of furosemide. It is a diuretic (loop water pill) which prevents excessive retention from your body. This leads the salt to be excreted during urination.


Lasix is utilized for the treatment of edema (fluid retention) in individuals suffering from congestive heart failure, kidney disorder (nephritic syndrome), and liver disorder. Lasix is likewise used for the treatment of hypertension.

How to Use

Take Lasix precisely as endorsed by your specialist. Your specialist may periodically change your measurements to ensure you get the best outcomes.

Try not to take more than your prescribed dosage. High measurements of furosemide may lead to irreversible hearing loss. Measure fluid solution with the help of the dosing syringe given, or with a drug glass. Lasix will result in more frequent urination and may cause easy dehydration. Take after your specialist's guidelines about utilizing potassium supplements or having enough potassium and salt in your eating routine.

Side Effects

Seek emergency medical attention if you observe signs of hypersensitivity to Lasix: difficulty breathing, hives; swollen face, tongue, throat or lips.

Inform your physician instantly if you notice:

  • Ringing sound in your ears,
  • Hearing loss;
  • Jaundice
  • Confusion,
  • Loss of appetite,
  • Drowsiness,
  • Nausea,
  • Problems with memory or speech;
  • Stomach ache leading to back pain;
  • Pale skin,
  • Sudden weakness
  • Easy bruising/bleeding;
  • Ill feeling,
  • Sore throat;
  • Fever,
  • Chills,
  • Symptoms of imbalance in electrolyte - dry mouth, mood changes, increased thirst, muscle pain, lack of energy, muscle weakness, little or no urination, fast heartbeats,
  • Kidney problems – Painful/difficulty in urination, swollen feet/ankles, tired feeling, shortness of breath
  • Extreme skin reaction – skin blistering, red/purple skin rash, skin peeling, swollen lips/tongue/face, sore throat, fever
Furosemide 40mg tablets

The following are some of the side effects of Lasix:

  • Headache,
  • Numbness
  • Dizziness; or
  • Tingling;
  • Blurred vision.


You shouldn’t consume furosemide if you show hypersensitive reaction to it, or:

  • If you have problem during urination.

To ensure that the use of furosemide is safe for you, let your doctor know if you have:

  • Kidney disease;
  • Cirrhosiss;
  • Enlarged prostate,
  • An electrolyte imbalance
  • Bladder obstruction;
  • High levels of cholesterol or
  • Gout;
  • High triglyceride levels
  • Lupus;
  • Sulfa drug allergy.
  • Diabetes

Inform your physician if you have to undergo an MRI- magnetic resonance imaging or any other type of scan which uses a radioactive dye which is directly injected into the veins. Both furosemide and contrast dyes can cause harm to your kidneys.

Pregnancy and Furosemide

Lasix will cause damage to an unborn baby or not, it is not yet known. Inform your specialist if you get pregnant or think of conceiving in near future.

Furosemide can penetrate into maternal milk and cause damage to a nursing baby. Also, this drug may reduce the milk production speed. Tell your physician if you breast feed during the intake of the drug.

Drug Uses

Furosemide is prescribed for patients suffering with hypertension, heart failure, cirrhosis of the liver and kidney disease. It can also be used in conjunction with other medications for the treatment of the fluid build-up in the lungs.

How Taken

Furosemide is to be taken as prescribed by a doctor. It is recommended that Furosemide be taken with food to avoid stomach upsets. In the early stages of dosage, Furosemide may cause an increase in urination. It is therefore suggested that the dose be taken in the early evening so that sleep interruptions are reduced.

Missed Dose

If a dose is missed, it can be taken as soon as you remember, as long as it does not clash with the next scheduled dose. In this case, rather skip the missed dose. Never take a double dose.

More Information

Use Furosemide with caution. Side-effects include dizziness and lightheadedness. When alcohol is taken simultaneously with Furosemide, these side-effects may intensify. In the early stages of taking Furosemide, refrain from driving or operating machinery in case you react adversely to the medication. Furosemide is only to be taken by the patient for whom it was prescribed. Never increase or decrease the dosage without first consulting a doctor.