Product label issues after Imidacloprid in dogs

The FDA has received 24 reports of product label issues in dogs after Imidacloprid. That is 1.3% of all reports for this medicine, compared with 0.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

24Reports

0.0%Marked serious

0.0%Recovered

0.0%Died or euthanised

Same dayTypical onset

How soon it started

Same day

14 61%

1–2 days

4 17%

3–7 days

1 4.3%

1–4 weeks

1 4.3%

Over a month

3 13%

How the animals did

Still unwell when reported

2 8.3%

Not known

22 92%

Problems reported at the same time

Didn't stop fleas

22 92%

Disorientation

8 33%

Overdose

5 21%

Inappropriate schedule of drug administration

2 8.3%

Itching

2 8.3%

Didn't work as expected

2 8.3%

Drug administration error

1 4.2%

Incorrect dose administered

1 4.2%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Imidacloprid kills fleas (spot-on or collar).

Questions owners ask

Can Imidacloprid cause product label issues in dogs?: 24 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 the same day 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).

Product label issues with similar medicines

Product label issues after Nitenpyram (Capstar) 295 reports · 2.7% of its reports

All reported side effects of Imidacloprid in dogs · Medicines most reported with product label issues