Weakness after Insulin in cats

The FDA has received 97 reports of weakness in cats after Insulin. That is 2.6% of all reports for this medicine, compared with 1.2% across reports for all cat medicines, so it is reported unusually often with this medicine.

97Reports

64%Marked serious

21%Recovered

26%Died or euthanised

5 daysTypical onset

How soon it started

Same day

14 26%

1–2 days

11 20%

3–7 days

4 7.4%

1–4 weeks

6 11%

Over a month

19 35%

How the animals did

Recovered

19 20%

Recovered with lasting effects

1 1.0%

Still unwell when reported

14 14%

Died

11 11%

Euthanised

14 14%

Not known

38 39%

Problems reported at the same time

Hypoglycaemia

36 37%

Loss of appetite

30 31%

Lethargy

29 30%

Didn't work as expected

29 30%

25 26%

25 26%

19 20%

16 16%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Insulin treats diabetes.

Questions owners ask

Can Insulin cause weakness in cats?: 97 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).

Weakness with similar medicines

Weakness after Velagliflozin (Senvelgo) 48 reports · 1.0% of its reports
Weakness after Bexagliflozin (Bexacat) 75 reports · 1.9% of its reports
Weakness after Methimazole 50 reports · 2.8% of its reports

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