Weight loss after Insulin in dogs

304 reports to the FDA describe weight loss in dogs given Insulin. That is 4.1% of all reports for this medicine, compared with 1.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

304Reports

67%Marked serious

13%Recovered

14%Died or euthanised

45 daysTypical onset

How soon it started

Same day

21 14%

1–2 days

7 4.8%

3–7 days

9 6.1%

1–4 weeks

22 15%

Over a month

88 60%

How the animals did

Recovered

18 5.9%

Recovered with lasting effects

21 6.9%

Still unwell when reported

101 33%

Died

18 5.9%

Euthanised

26 8.6%

Not known

120 39%

Problems reported at the same time

Didn't work as expected

130 43%

99 33%

96 32%

83 27%

63 21%

61 20%

57 19%

56 18%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

162

12+ years

About this medicine

Insulin treats diabetes.

Questions owners ask

Can Insulin cause weight loss in dogs?: 304 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 45 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).

Weight loss with similar medicines

Weight loss after Trilostane (Vetoryl) 1,496 reports · 13% of its reports
Weight loss after Phenylpropanolamine (Proin) 123 reports · 3.0% of its reports
Weight loss after Levothyroxine 206 reports · 6.8% of its reports

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