Swelling after Sulfadimethoxine in dogs

102 reports to the FDA describe swelling in dogs given Sulfadimethoxine. That is 11% of all reports for this medicine, compared with 2.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

102Reports
19%Marked serious
18%Recovered
11%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
20 48%
1–2 days
6 14%
3–7 days
5 12%
1–4 weeks
7 17%
Over a month
4 9.5%

How the animals did

Recovered
18 18%
Still unwell when reported
19 19%
Died
9 8.8%
Euthanised
2 2.0%
Not known
54 53%

Problems reported at the same time

17 17%
16 16%
11 11%
11 11%
7 6.9%
Uveitis
5 4.9%

Age of the animals

Under 1 year
64
1–3 years
28
4–7 years
8
8–11 years
2
12+ years
0

About this medicine

Type: medicine.

Questions owners ask

Can Sulfadimethoxine cause swelling in dogs?
102 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).

Swelling with similar medicines

All reported side effects of Sulfadimethoxine in dogs · Medicines most reported with swelling