Polypnoea after Nitenpyram (Capstar) in dogs

60 reports to the FDA describe polypnoea in dogs given Nitenpyram. That is 0.6% of all reports for this medicine, compared with 0.5% across reports for all dog medicines.

60Reports
0.0%Marked serious
0.0%Recovered
10%Died or euthanised
–Typical onset
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How the animals did

Died
6 10%
Not known
54 90%

Problems reported at the same time

Age of the animals

Under 1 year
7
1–3 years
14
4–7 years
16
8–11 years
14
12+ years
6

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 polypnoea in dogs?
60 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.
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).

Polypnoea with similar medicines

All reported side effects of Nitenpyram in dogs · Medicines most reported with polypnoea