Product label issues after Nitenpyram (Capstar) in dogs

295 reports to the FDA describe product label issues in dogs given Nitenpyram. That is 2.7% 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.

295Reports

1.4%Marked serious

2.0%Recovered

1.0%Died or euthanised

1 daysTypical onset

How soon it started

Same day

41 31%

1–2 days

34 26%

3–7 days

13 9.8%

1–4 weeks

35 27%

Over a month

9 6.8%

How the animals did

Recovered

6 2.0%

Still unwell when reported

21 7.1%

Died

2 0.7%

Euthanised

1 0.3%

Not known

265 90%

Problems reported at the same time

278 94%

70 24%

16 5.4%

15 5.1%

Didn't work as expected

15 5.1%

Itching

12 4.1%

Product defect, general

8 2.7%

Circumstance or info capable of leading to medication error

8 2.7%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Nitenpyram kills adult fleas quickly; a single-dose tablet.

Products with this ingredient include Capstar. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Nitenpyram cause product label issues in dogs?: 295 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 1 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 Imidacloprid 24 reports · 1.3% of its reports

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