Vomiting after Sulfadimethoxine in cats

The FDA has received 41 reports of vomiting in cats after Sulfadimethoxine. That is 13% of all reports for this medicine, compared with 18% across reports for all cat medicines.

41Reports
15%Marked serious
9.8%Recovered
17%Died or euthanised
2 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
5 29%
1–2 days
5 29%
3–7 days
1 5.9%
1–4 weeks
4 24%
Over a month
2 12%

How the animals did

Recovered
4 9.8%
Still unwell when reported
4 9.8%
Died
7 17%
Not known
26 63%

Problems reported at the same time

15 37%
13 32%
8 20%
5 12%
Drooling
4 9.8%
Wobbliness (ataxia)
3 7.3%

Age of the animals

Under 1 year
25
1–3 years
7
4–7 years
3
8–11 years
1
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Sulfadimethoxine cause vomiting in cats?
41 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 2 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).

Vomiting with similar medicines

All reported side effects of Sulfadimethoxine in cats · Medicines most reported with vomiting