Kidney problems after Spironolactone in dogs

The FDA has received 32 reports of kidney problems in dogs after Spironolactone. That is 16% of all reports for this medicine, compared with 2.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

32Reports
66%Marked serious
13%Recovered
25%Died or euthanised
35 daysTypical onset
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How soon it started

Same day
3 13%
1–2 days
0 0.0%
3–7 days
1 4.3%
1–4 weeks
7 30%
Over a month
12 52%

How the animals did

Recovered
4 13%
Still unwell when reported
12 38%
Died
4 13%
Euthanised
4 13%
Not known
8 25%

Problems reported at the same time

13 41%
10 31%
8 25%
Hypokalaemia
7 22%
Weight loss
7 22%

Age of the animals

Under 1 year
0
1–3 years
0
4–7 years
1
8–11 years
4
12+ years
26

About this medicine

Type: medicine.

Questions owners ask

Can Spironolactone cause kidney problems in dogs?
32 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 35 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).

Kidney problems with similar medicines

All reported side effects of Spironolactone in dogs · Medicines most reported with kidney problems