Kidney problems after Sulfadimethoxine in dogs

35 reports to the FDA describe kidney problems in dogs given Sulfadimethoxine. That is 3.8% 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.

35Reports
40%Marked serious
5.7%Recovered
54%Died or euthanised
9 daysTypical onset
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How soon it started

Same day
0 0.0%
1–2 days
4 25%
3–7 days
4 25%
1–4 weeks
6 38%
Over a month
2 13%

How the animals did

Recovered
2 5.7%
Still unwell when reported
6 17%
Died
15 43%
Euthanised
4 11%
Not known
8 23%

Problems reported at the same time

19 54%
16 46%
16 46%
15 43%
Hyperphosphataemia
12 34%

Age of the animals

Under 1 year
24
1–3 years
2
4–7 years
4
8–11 years
2
12+ years
3

About this medicine

Type: medicine.

Questions owners ask

Can Sulfadimethoxine cause kidney problems in dogs?
35 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 9 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 Sulfadimethoxine in dogs · Medicines most reported with kidney problems