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Lasix (Furosemide)

General Information

Lasix (Furosemide) is used to decrease extra fluid in the body. It is called edema which is caused by conditions like:

  • Liver disease
  • Heart failure
  • Kidney disease

This can lessen symptoms such as:

  • Swelling in your legs, arms or abdomen
  • Shortness of breath

This drug may also be used to treat high blood pressure. Lowering it may help prevent heart attacks, strokes, or kidney problems.

How does Lasix (Furosemide) work?

Lasix (Furosemide) works by blocking the absorption of chloride, sodium, and water. It is from the filtered fluid in the kidney tubules that causes a profound increase in the output of urine. The beginning of action after oral use is within an hour and the diuresis lasts about 6-8 hours.

The diuretic effect of this drug may cause depletion of chloride, sodium, body water and other minerals. Therefore, careful therapeutic supervision is needed during treatment. 

Why use Lasix (Furosemide)?

Lasix contains Furosemide as an active ingredient. It belongs to the family of medications called diuretics. A diuretic helps lessen the amount of fluid in the body. It is by increasing the amount of urine produced. This comes as a tablet for oral use. It is available in the strengths of 20 mg, 40 mg, and 80 mg. The Food and Drug Administration (FDA) has approved this medication.

How to use Lasix (Furosemide)?

The recommended dosage is based on your medical condition and response. It is important to take the prescription exactly as it is given to you.

The tablet is to be taken by mouth with a full glass of water. It is usually taken once or twice a day. You may take each dose with or without food. Remember to take it at the same time every day.

What are the side-effects of Lasix (Furosemide)?

  • Thirst
  • Increased urination
  • Itching or rash
  • Muscle cramps
  • Dizziness
  • Weakness
  • Diarrhea
  • Spinning sensation
  • Constipation
  • Stomach pain

Serious side effects:

  • Dark urine
  • Dehydration
  • Nausea
  • Vomiting
  • Clay-colored stools
  • Loss of appetite
  • Rapid weight loss
  • Jaundice or yellowing of the skin

Warnings and Precautions

  • Avoid taking this medication within 4 hours of your bedtime. It is to prevent to get up to urinate.
  • Tell your doctor if you are allergic to this drug.
  • Do not share this with others even if they have the same symptoms as yours.
  • Inform your doctor about the medical history that you had.
  • Keep this and all of your other medicines far from the reach of children.