Sulfadiazine Trimethoprim side effects in horses

57 reports sent to the FDA between 1997 and 2023 involve Sulfadiazine Trimethoprim in horses. The most reported problems were diarrhea, allergic reaction, swelling. 1.8% were marked serious, and where it was recorded, signs eased after stopping the medicine in 100% of cases.

57Reports
1.8%Marked serious
98%Only medicine involved
12%Recovered
30%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Diarrhea
13 23%
Allergic reaction
13 23%
Swelling
12 21%
Itching
9 16%
Collapse
8 14%
Seizures
6 11%
Abdominal pain
5 8.8%
Restlessness or agitation
4 7.0%
Pallor
4 7.0%
Injection site reaction
4 7.0%
Breathing problems
4 7.0%
Recumbency
3 5.3%
Stranguria
3 5.3%
Eye haemorrhage
3 5.3%
Hyperhidrosis
3 5.3%

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a horse still getting fleas or heartworm), not about a side effect.

Didn't work as expected
4 7.0%

How the animals did

Recovered
5 8.8%
Recovered with lasting effects
2 3.5%
Still unwell when reported
1 1.8%
Died
17 30%
Not known
32 56%

Breeds named most often

Popular breeds appear more often because there are more of them.

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