Didn't stop fleas after Spinetoram in cats

The FDA has received 91 reports of didn't stop fleas in cats after Spinetoram. That is 35% of all reports for this medicine, compared with 8.4% across reports for all cat medicines, so it is reported unusually often with this medicine.

91Reports

7.7%Marked serious

8.8%Recovered

0.0%Died or euthanised

23 daysTypical onset

How soon it started

Same day

8 15%

1–2 days

1 1.9%

3–7 days

6 11%

1–4 weeks

14 26%

Over a month

24 45%

How the animals did

Recovered

8 8.8%

Still unwell when reported

8 8.8%

Not known

75 82%

Problems reported at the same time

Vomiting

15 16%

Itching

13 14%

Didn't work as expected

10 11%

Underdose

5 5.5%

Behaviour change

4 4.4%

Lethargy

3 3.3%

Loss of appetite

3 3.3%

Hair loss

3 3.3%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Spinetoram cause didn't stop fleas in cats?: 91 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 23 days 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).

Didn't stop fleas with similar medicines

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