Seizures after Insulin in cats

The FDA has received 182 reports of seizures in cats after Insulin. That is 4.9% of all reports for this medicine, compared with 2.6% across reports for all cat medicines, so it is reported unusually often with this medicine.

182Reports

58%Marked serious

14%Recovered

26%Died or euthanised

5 daysTypical onset

How soon it started

Same day

17 25%

1–2 days

13 19%

3–7 days

8 12%

1–4 weeks

12 18%

Over a month

18 26%

How the animals did

Recovered

24 13%

Recovered with lasting effects

2 1.1%

Still unwell when reported

28 15%

Died

21 12%

Euthanised

27 15%

Not known

80 44%

Problems reported at the same time

107 59%

49 27%

37 20%

27 15%

25 14%

Didn't work as expected

22 12%

Vocalising

22 12%

Hypothermia

15 8.2%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

114

About this medicine

Insulin treats diabetes.

Questions owners ask

Can Insulin cause seizures in cats?: 182 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 5 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 Bexagliflozin (Bexacat) 20 reports · 0.5% of its reports
Seizures after Methimazole 64 reports · 3.6% of its reports

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