Ivermectin (Heartgard) side effects in Beagles

194 FDA reports involve Ivermectin in a Beagle. These are the problems they describe.

Didn't prevent heartworm
82 42%
Vomiting
43 22%
Didn't work as expected
18 9.3%
Lethargy
18 9.3%
Eye or vision problems
15 7.7%
Diarrhea
12 6.2%
Wobbliness (ataxia)
11 5.7%
Didn't stop worms
9 4.6%
Seizures
9 4.6%
Tremors
8 4.1%
Loss of appetite
8 4.1%
Death
8 4.1%

All reports for Ivermectin in dogs