Generic Name: Furosemide (fur OH se mide)

Brand Names: Lasix, Diaqua-2, Lo-Aqua

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What is lasix ?

Lasix is a cheap but very effective diuretic product which is used for about 50 years. The main active ingredient is Furosemide which has been synthesized in 1962 and approved by FDA to treat edema syndrome.

Lasix is very effective at the early stage of the edema development and is irreplaceable during severe cases. Furosemide provides a strong diuretic effect within 30 minutes after the consumption.

Lasix differs from the analogical products because it stimulates natural processes of the liquid excretion from the body and prevents the further disorder of the water balance. It excretes the liquid with urine after the second application.

Lasix increases excretion of sodium from the body which retains the excessive liquid. Other minerals are also excreted with sodium, and therefore it is necessary to control a mineral balance during the use of Furosemide.

The maximal diuretic effect of Lasix occurs in 1 hour after the use but it lasts for a short period, within 3-4 hours. A short diuretic effect will reduce the negative action of the medicine to the body. Unlike analogical drugs, Lasix seldom causes side effects and is well tolerated during the proper administration.

Directions for the use of Lasix

Lasix is prescribed during edema of the various origin:

  • Kidney dysfunctions
  • Pregnancy
  • Metabolic disorder
  • Edema because of the medical product application

Due to its diuretic properties, Lasix is actively used during intoxication of the body by toxicants and to lower the arterial pressure during hypertonic crisis.

How to take Lasix?

Lasix is used 1-3 times per day. The frequency of the use depends on the cause of the edema and severity level. The treatment is started from the minimal daily dose, and the dose of Lasix is gradually increased up to the optimal level, as needed.

  • If edema syndrome of the middle severity level, patients are recommended one tablet Lasix 40 mg per day, in the morning, before breakfast.
  • If the diuretic effect is absent, the dose can be increased by two times and taken 40 mg Lasix every 8 hours
  • In case of the intense edema syndrome, patients are recommended to take one tablet Lasix 40 mg every 6 hours
  • If edema caused by renal failure, the single dose is 100 mg
  • The maximal daily dose of Lasix is 300 mg.

More than 300 mg of Lasix per day is strictly contraindicated because it will cause severe side effects.

Possible side effects

In most cases, the side effects of Lasix indicate the intolerance of the high doses of Furosemide, and therefore the daily dose should be reduced if they happened.

In order to avoid the side effects, the treatment should be started from the minimal doses of Lasix, and the dose is gradually increased up to the most effective and the safest one.

Diarrhea, nausea, mild headache, weakness, hypotension, muscle spasms, and dry mouth are the most possible side effects which appear in the first 1-2 days of Lasix administration.

If you noticed the allergic reaction (rash, itching, red skin), the dose should be reduced, and consult a doctor.


  • Lasix is not recommended children because it can cause hear disorder
  • Furosemide is discharged with breast milk, and therefore it is better to refuse from the breast feeding during the treatment
  • Before taking Lasix during pregnancy, discuss all precautions with doctor
  • Lasix excretes Potassium and other useful minerals from the body. The mineral deficit should be fulfilled by food and BAA.