Seizures after Prednisolone in cats

The FDA has received 37 reports of seizures in cats after Prednisolone. That is 3.0% of all reports for this medicine, compared with 2.6% across reports for all cat medicines.

37Reports

89%Marked serious

27%Recovered

38%Died or euthanised

9 daysTypical onset

How soon it started

Same day

6 20%

1–2 days

4 13%

3–7 days

2 6.7%

1–4 weeks

8 27%

Over a month

10 33%

How the animals did

Recovered

10 27%

Still unwell when reported

10 27%

Died

7 19%

Euthanised

7 19%

Not known

3 8.1%

Problems reported at the same time

14 38%

6 16%

5 14%

5 14%

4 11%

4 11%

4 11%

4 11%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Prednisolone reduces inflammation and immune activity.

Steroids commonly cause increased thirst, urination and appetite, especially at higher doses.

Questions owners ask

Can Prednisolone cause seizures in cats?: 37 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).

Seizures with similar medicines

Seizures after Prednisone 30 reports · 3.4% of its reports
Seizures after Dexamethasone + Neomycin + Thiabendazole 27 reports · 3.4% of its reports
Seizures after Dexamethasone 37 reports · 4.8% of its reports

All reported side effects of Prednisolone in cats · Medicines most reported with seizures