Insulin side effects in dogs

7,358 reports sent to the FDA between 2000 and 2026 involve Insulin in dogs. The most reported problems were hypoglycaemia, vomiting, lethargy. 53% were marked serious, and where it was recorded, signs eased after stopping the medicine in 68% of cases.

7,358Reports

53%Marked serious

74%Only medicine involved

32%Recovered

8.6%Died or euthanised

About this medicine

Insulin treats diabetes.

Most reported side effects

1,171 16%

904 12%

895 12%

869 12%

702 9.5%

526 7.1%

473 6.4%

417 5.7%

396 5.4%

393 5.3%

304 4.1%

238 3.2%

232 3.2%

Eye or vision problems

227 3.1%

Cataract

218 3.0%

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't work as expected

3,834 52%

Didn't stop fleas

31 0.4%

Didn't prevent heartworm

10 0.1%

Didn't stop worms

6 0.1%

How soon problems started

Same day

554 17%

1–2 days

216 6.6%

3–7 days

324 9.9%

1–4 weeks

661 20%

Over a month

1,515 46%

Time from the first dose to the first sign, where both dates were reported (3,270 reports).

How the animals did

Recovered

1,844 25%

Recovered with lasting effects

522 7.1%

Still unwell when reported

2,050 28%

Died

292 4.0%

Euthanised

341 4.6%

Not known

2,309 31%

Breeds named most often

Popular breeds appear more often because there are more of them.

Labrador Retriever 536 reports
Miniature Schnauzer 353 reports
Yorkshire Terrier 282 reports
Chihuahua 279 reports
Miniature Pinscher 278 reports
Pug 224 reports
Schnauzer 199 reports
Bichon Frise 177 reports
Dachshund 174 reports
Maltese 163 reports

Other hormone or endocrine medicines for dogs

Trilostane (Vetoryl)11,924 reports · 46% serious Phenylpropanolamine (Proin)4,138 reports · 38% serious Levothyroxine3,012 reports · 44% serious Velagliflozin (Senvelgo)72 reports · 1.4% serious