Didn't work as expected after Insulin in dogs

The FDA has received 3,834 reports of didn't work as expected in dogs after Insulin. That is 52% of all reports for this medicine, compared with 13% across reports for all dog medicines, so it is reported unusually often with this medicine.

3,834Reports

63%Marked serious

27%Recovered

6.6%Died or euthanised

24 daysTypical onset

How soon it started

Same day

325 25%

1–2 days

63 4.8%

3–7 days

96 7.3%

1–4 weeks

234 18%

Over a month

603 46%

How the animals did

Recovered

605 16%

Recovered with lasting effects

413 11%

Still unwell when reported

1,310 34%

Died

91 2.4%

Euthanised

163 4.3%

Not known

1,252 33%

Problems reported at the same time

505 13%

404 11%

369 9.6%

344 9.0%

322 8.4%

308 8.0%

275 7.2%

245 6.4%

Age of the animals

Under 1 year

1–3 years

4–7 years

586

8–11 years

1,951

12+ years

990

About this medicine

Insulin treats diabetes.

Questions owners ask

Can Insulin cause didn't work as expected in dogs?: 3,834 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 24 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).

Didn't work as expected with similar medicines

Didn't work as expected after Trilostane (Vetoryl) 1,750 reports · 15% of its reports
Didn't work as expected after Phenylpropanolamine (Proin) 702 reports · 17% of its reports
Didn't work as expected after Levothyroxine 421 reports · 14% of its reports

All reported side effects of Insulin in dogs · Medicines most reported with didn't work as expected