Spinosad (Comfortis) side effects in Bull Terriers

56 FDA reports involve Spinosad in a Bull Terrier. These are the problems they describe.

Vomiting
30 54%
Didn't stop fleas
9 16%
Lethargy
9 16%
Loss of appetite
7 13%
Tremors
6 11%
Diarrhea
6 11%
Itching
3 5.4%
Behaviour change
3 5.4%
Didn't work as expected
3 5.4%
Allergic reaction
3 5.4%
Wobbliness (ataxia)
3 5.4%
Liver problems
3 5.4%

All reports for Spinosad in dogs