Ivermectin (Heartgard) side effects in Horses

164 FDA reports involve Ivermectin in a Horse. These are the problems they describe.

Death
38 23%
Swelling
28 17%
Wobbliness (ataxia)
19 12%
Abdominal pain
18 11%
Lethargy
16 9.8%
Didn't work as expected
15 9.1%
No sign
14 8.5%
Recumbency
13 7.9%
Didn't stop worms
13 7.9%
Loss of appetite
10 6.1%
Diarrhea
10 6.1%
Eye or vision problems
8 4.9%

All reports for Ivermectin in horses