Warm feeling to the touch after Nitenpyram (Capstar) in cats

48 reports to the FDA describe warm feeling to the touch in cats given Nitenpyram. That is 0.5% of all reports for this medicine, compared with 0.1% across reports for all cat medicines, so it is reported unusually often with this medicine.

48Reports

10%Marked serious

44%Recovered

2.1%Died or euthanised

Same dayTypical onset

How soon it started

Same day

41 85%

1–2 days

1 2.1%

3–7 days

2 4.2%

1–4 weeks

2 4.2%

Over a month

2 4.2%

How the animals did

Recovered

21 44%

Still unwell when reported

4 8.3%

Euthanised

1 2.1%

Not known

22 46%

Problems reported at the same time

Breathing problems

37 77%

Restlessness or agitation

29 60%

16 33%

9 19%

6 13%

5 10%

4 8.3%

3 6.3%

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 warm feeling to the touch in cats?: 48 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).

All reported side effects of Nitenpyram in cats · Medicines most reported with warm feeling to the touch