Furosemide (Lasix) for dogs and cats
A diuretic for fluid buildup from heart failure and some kidney conditions. [1]
Key facts
| Generic name | Furosemide |
|---|---|
| Common brand names | Lasix, Salix |
| Used in | Dogs & Cats |
| Type | Heart & blood pressure |
| Prescription? | Prescription |
| Typical US price | Not listed (no reliable public source) |
What it's used for
A diuretic for fluid buildup from heart failure and some kidney conditions. [1]
How it works
It makes the kidneys flush out more water and salt, which pulls fluid off the lungs and body. [1]
Side effects and cautions
Common side effects: Lots more urination; diarrhea or constipation. Dehydration and low potassium can happen. [1]
Use with care: Keep fresh water available at all times. Call your vet about weakness, collapse or not urinating. [1]
Call your vet right away if your pet has trouble breathing, facial swelling, hives, collapse, or any side effect that is severe or getting worse.
What it costs
We don't list a price for this one because we couldn't find a reliable public source. Ask your vet or pharmacy for a quote; prices depend on your pet's size, the dose and where you fill it.
Furosemide FAQ
What is Furosemide used for in dogs and cats?
A diuretic for fluid buildup from heart failure and some kidney conditions.
What are the side effects of Furosemide?
Lots more urination; diarrhea or constipation. Dehydration and low potassium can happen.
Does Furosemide need a prescription?
Yes. It needs a prescription from a veterinarian.
How much Furosemide should I give my pet?
Only your veterinarian can tell you. The right dose depends on your pet's weight, health and other medicines, so we don't list doses. Never give a pet a medicine prescribed for a person or another animal without asking your vet.
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This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.