Vocalising after Flumethrin + Imidacloprid (Seresto) in dogs

53 reports to the FDA describe vocalising in dogs given Flumethrin + Imidacloprid. That is 2.3% of all reports for this medicine, compared with 1.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

53Reports

55%Marked serious

25%Recovered

7.5%Died or euthanised

30 daysTypical onset

How soon it started

Same day

6 15%

1–2 days

2 5.0%

3–7 days

3 7.5%

1–4 weeks

10 25%

Over a month

19 48%

How the animals did

Recovered

13 25%

Still unwell when reported

15 28%

Died

3 5.7%

Euthanised

1 1.9%

Not known

21 40%

Problems reported at the same time

20 38%

16 30%

13 25%

11 21%

11 21%

10 19%

Restlessness or agitation

9 17%

Tremors

7 13%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Imidacloprid kills fleas (spot-on or collar).

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

Questions owners ask

Can Flumethrin + Imidacloprid cause vocalising in dogs?: 53 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 30 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).

Vocalising with similar medicines

Vocalising after Spinosad (Comfortis) 586 reports · 1.0% of its reports
Vocalising after Lufenuron + Milbemycin Oxime (Sentinel) 180 reports · 0.7% of its reports
Vocalising after Imidacloprid + Moxidectin (Advantage Multi) 295 reports · 2.2% of its reports
Vocalising after Nitenpyram (Capstar) 262 reports · 2.4% of its reports
Vocalising after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 45 reports · 0.5% of its reports
Vocalising after Fipronil + S-methoprene (Frontline Plus) 67 reports · 2.3% of its reports
Vocalising after Imidacloprid 46 reports · 2.4% of its reports
Vocalising after Fipronil 28 reports · 2.0% of its reports
Vocalising after Imidacloprid + Permethrin + Pyriproxyfen 29 reports · 3.9% of its reports
Vocalising after Cyphenothrin + Fipronil + S-methoprene 55 reports · 8.5% of its reports

All reported side effects of Flumethrin + Imidacloprid in dogs · Medicines most reported with vocalising