Spinosad (Comfortis) side effects in Chihuahuas

3,150 FDA reports involve Spinosad in a Chihuahua. These are the problems they describe.

Vomiting
1,479 47%
Didn't stop fleas
931 30%
Lethargy
473 15%
Itching
237 7.5%
Tremors
184 5.8%
Loss of appetite
173 5.5%
Didn't work as expected
157 5.0%
Diarrhea
137 4.3%
Seizures
125 4.0%
Accidental exposure
113 3.6%
Wobbliness (ataxia)
102 3.2%
Overdose
71 2.3%

All reports for Spinosad in dogs