Behaviour change after Furosemide in dogs

64 reports to the FDA describe behaviour change in dogs given Furosemide. That is 4.2% of all reports for this medicine, compared with 2.5% across reports for all dog medicines, so it is reported unusually often with this medicine.

64Reports
61%Marked serious
22%Recovered
34%Died or euthanised
20 daysTypical onset
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How soon it started

Same day
9 20%
1–2 days
8 17%
3–7 days
4 8.7%
1–4 weeks
7 15%
Over a month
18 39%

How the animals did

Recovered
12 19%
Recovered with lasting effects
2 3.1%
Still unwell when reported
12 19%
Died
8 13%
Euthanised
14 22%
Not known
16 25%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
2
4–7 years
7
8–11 years
26
12+ years
26

About this medicine

Type: medicine.

Questions owners ask

Can Furosemide cause behaviour change in dogs?
64 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 20 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).

Behaviour change with similar medicines

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