Selamectin (Revolution) side effects in Labrador Retrievers

2,608 FDA reports involve Selamectin in a Labrador Retriever. These are the problems they describe.

Didn't prevent heartworm
1,338 51%
Didn't stop worms
206 7.9%
Didn't work as expected
198 7.6%
Vomiting
144 5.5%
Lethargy
142 5.4%
Didn't stop fleas
134 5.1%
Itching
115 4.4%
Diarrhea
111 4.3%
Loss of appetite
96 3.7%
Didn't stop ticks
94 3.6%
Hair loss
86 3.3%
Seizures
82 3.1%

All reports for Selamectin in dogs