Fever after Insulin in dogs

The FDA has received 53 reports of fever in dogs after Insulin. That is 0.7% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported less often than average with this medicine.

53Reports

81%Marked serious

19%Recovered

30%Died or euthanised

8 daysTypical onset

How soon it started

Same day

7 25%

1–2 days

4 14%

3–7 days

3 11%

1–4 weeks

9 32%

Over a month

5 18%

How the animals did

Recovered

5 9.4%

Recovered with lasting effects

5 9.4%

Still unwell when reported

18 34%

Died

6 11%

Euthanised

10 19%

Not known

9 17%

Problems reported at the same time

Loss of appetite

24 45%

Death

18 34%

Lethargy

16 30%

Didn't work as expected

16 30%

15 28%

14 26%

11 21%

10 19%

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 fever in dogs?: 53 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 8 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).

Fever with similar medicines

Fever after Trilostane (Vetoryl) 81 reports · 0.7% of its reports
Fever after Phenylpropanolamine (Proin) 94 reports · 2.3% of its reports
Fever after Levothyroxine 50 reports · 1.7% of its reports

All reported side effects of Insulin in dogs · Medicines most reported with fever