Death after Furosemide in cats

109 reports to the FDA describe death in cats given Furosemide. That is 36% of all reports for this medicine, compared with 8.9% across reports for all cat medicines, so it is reported unusually often with this medicine.

109Reports
94%Marked serious
0.0%Recovered
100%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
38 42%
1–2 days
21 23%
3–7 days
8 8.8%
1–4 weeks
12 13%
Over a month
12 13%

How the animals did

Died
56 51%
Euthanised
53 49%

Problems reported at the same time

Age of the animals

Under 1 year
9
1–3 years
13
4–7 years
22
8–11 years
31
12+ years
30

About this medicine

Type: medicine.

Questions owners ask

Can Furosemide cause death in cats?
109 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 1 day of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Death with similar medicines

All reported side effects of Furosemide in cats · Medicines most reported with death