Skin scab after Nitenpyram (Capstar) in cats

31 reports to the FDA describe skin scab in cats given Nitenpyram. That is 0.4% of all reports for this medicine, compared with 1.3% across reports for all cat medicines, so it is reported less often than average with this medicine.

31Reports

29%Marked serious

3.2%Recovered

3.2%Died or euthanised

1 daysTypical onset

How soon it started

Same day

7 33%

1–2 days

6 29%

3–7 days

3 14%

1–4 weeks

3 14%

Over a month

2 9.5%

How the animals did

Recovered

1 3.2%

Still unwell when reported

7 23%

Euthanised

1 3.2%

Not known

22 71%

Problems reported at the same time

22 71%

15 48%

14 45%

8 26%

Restlessness or agitation

5 16%

Lethargy

5 16%

Weight loss

5 16%

Vocalising

4 13%

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 skin scab in cats?: 31 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).

Skin scab with similar medicines

Skin scab after Imidacloprid + Moxidectin (Advantage Multi) 93 reports · 1.1% of its reports
Skin scab after Imidacloprid + Pyriproxyfen 23 reports · 3.5% of its reports

All reported side effects of Nitenpyram in cats · Medicines most reported with skin scab