Imidacloprid + Permethrin side effects in Labrador Retrievers

35 FDA reports involve Imidacloprid + Permethrin in a Labrador Retriever. These are the problems they describe.

Didn't work as expected
9 26%
Vomiting
7 20%
Lethargy
5 14%
Didn't stop fleas
4 11%
Head shake - ear disorder
3 8.6%
Behaviour change
3 8.6%
Weight gain
2 5.7%
Didn't prevent heartworm
2 5.7%
Loss of appetite
2 5.7%
Didn't stop worms
2 5.7%
Diarrhea
2 5.7%
Loss of hearing
1 2.9%

All reports for Imidacloprid + Permethrin in dogs