Spinosad (Comfortis) side effects in Labrador Retrievers

2,451 FDA reports involve Spinosad in a Labrador Retriever. These are the problems they describe.

Vomiting
1,472 60%
Didn't stop fleas
460 19%
Lethargy
232 9.5%
Itching
145 5.9%
Loss of appetite
105 4.3%
Seizures
98 4.0%
Diarrhea
81 3.3%
Death
69 2.8%
Didn't work as expected
66 2.7%
Wobbliness (ataxia)
63 2.6%
Tremors
60 2.4%
Drooling
55 2.2%

All reports for Spinosad in dogs