Imidacloprid side effects in Chihuahuas

119 FDA reports involve Imidacloprid in a Chihuahua. These are the problems they describe.

Didn't stop fleas
69 58%
Vomiting
19 16%
Itching
18 15%
Lethargy
15 13%
Overdose
14 12%
Loss of appetite
12 10%
Behaviour change
7 5.9%
Didn't work as expected
7 5.9%
Wobbliness (ataxia)
7 5.9%
Diarrhea
6 5.0%
Tremors
5 4.2%
Skin rash or irritation
5 4.2%

All reports for Imidacloprid in dogs