Weakness after Furosemide in dogs

69 reports to the FDA describe weakness in dogs given Furosemide. That is 4.5% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

69Reports
68%Marked serious
17%Recovered
33%Died or euthanised
13 daysTypical onset
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How soon it started

Same day
12 22%
1–2 days
5 9.3%
3–7 days
4 7.4%
1–4 weeks
13 24%
Over a month
20 37%

How the animals did

Recovered
11 16%
Recovered with lasting effects
1 1.4%
Still unwell when reported
16 23%
Died
12 17%
Euthanised
11 16%
Not known
18 26%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
5
4–7 years
6
8–11 years
15
12+ years
40

About this medicine

Type: medicine.

Questions owners ask

Can Furosemide cause weakness in dogs?
69 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 13 days 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).

Weakness with similar medicines

All reported side effects of Furosemide in dogs · Medicines most reported with weakness