Active ingredient 


Drug Description:

Furosemide is a diuretic that increases the renal excretion of water, sodium, potassium, chloride, calcium, magnesium, hydrogen, ammonia and bicarbonate.

Indications :

This medication is used in domestic animals to treat congestive cardiomyopathy, pulmonary edema, hypercalcemic nephropathy, uremia (an abnormally high level of urea in the blood).

It is also used as a complementary treatment during hyperkalemia (an abnormally high level of potassium in the blood) or high blood pressure.

Contraindications :

Do not use this product unless directed by a veterinarian, in animals with kidney or liver disease, lack of urine production, electrolyte imbalance, diabetes mellitus vomiting, diarrhea or allergies to other diuretics.

For more information on this subject, talk to a veterinarian or consult the package insert that accompanies this product.

Side Effects :

This medication may cause electrolyte imbalance, dehydration, ear toxicity, vomiting, diarrhea, anemia, weakness, or agitation. 

For more information on other possible side effects, please refer to the package insert that accompanies this product.

Recommended monitoring :

Ensure that the animal's condition improves and that he does not suffer from any side effects. 

The animal's hydration, blood electrolyte level and blood pressure should be checked regularly by a veterinarian.

Interactions with other medications:

Furosemide may interact with aminoglycoside antibiotics, amphotericin B, glucocorticosteroids, digoxin, angiotensin converting enzyme inhibitors, insulin , probenecid, salicylate, succinylcholine and theophylline. 

It is important to advise the veterinarian if the animal is already receiving any of these medications when starting Lasix®.


In a tightly closed container at room temperature and protected from light. Excess heat or cold should be avoided.

Warning :

The animal must have access to fresh water at all times to maintain a good level of hydration. 

Keep out of the reach of children and animals.

In the presence of severe, worsening or persistent side effects, contact a veterinarian as soon as possible.