Seizures after Ceftiofur in horses

52 reports to the FDA describe seizures in horses given Ceftiofur. That is 4.3% of all reports for this medicine, compared with 2.0% across reports for all horse medicines, so it is reported unusually often with this medicine.

52Reports

85%Marked serious

27%Recovered

67%Died or euthanised

Same dayTypical onset

How soon it started

Same day

33 75%

1–2 days

4 9.1%

3–7 days

5 11%

1–4 weeks

2 4.5%

Over a month

0 0.0%

How the animals did

Recovered

13 25%

Recovered with lasting effects

1 1.9%

Died

15 29%

Euthanised

20 38%

Not known

3 5.8%

Problems reported at the same time

35 67%

22 42%

13 25%

10 19%

Nystagmus

10 19%

Wobbliness (ataxia)

8 15%

Recumbency

7 13%

Injection site reaction

7 13%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Ceftiofur cause seizures in horses?: 52 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 the same 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).

Seizures with similar medicines

Seizures after Pergolide 34 reports · 2.8% of its reports
Seizures after Detomidine 40 reports · 4.0% of its reports
Seizures after Flunixin Meglumine 58 reports · 9.3% of its reports
Seizures after Xylazine 36 reports · 7.7% of its reports

All reported side effects of Ceftiofur in horses · Medicines most reported with seizures