Allergy after Flumethrin + Imidacloprid (Seresto) in dogs
The FDA has received 21 reports of allergy in dogs after Flumethrin + Imidacloprid. That is 0.9% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.
21Reports
43%Marked serious
4.8%Recovered
0.0%Died or euthanised
100 daysTypical onset
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How soon it started
How the animals did
Problems reported at the same time
Age of the animals
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 allergy in dogs?
- 21 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 100 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).
Allergy with similar medicines
- Allergy after Spinosad (Comfortis) 81 reports · 0.1% of its reports
- Allergy after Lufenuron + Milbemycin Oxime (Sentinel) 25 reports · 0.1% of its reports
- Allergy after Imidacloprid + Moxidectin (Advantage Multi) 28 reports · 0.2% of its reports
All reported side effects of Flumethrin + Imidacloprid in dogs · Medicines most reported with allergy