Ivermectin + Pyrantel (Heartgard Plus) side effects in Shetland Sheepdogs

733 FDA reports involve Ivermectin + Pyrantel in a Shetland Sheepdog. These are the problems they describe.

Didn't stop worms
159 22%
Didn't prevent heartworm
150 20%
Vomiting
140 19%
Didn't work as expected
127 17%
Digestive tract disorder
87 12%
Lethargy
58 7.9%
Diarrhea
57 7.8%
Seizures
50 6.8%
Loss of appetite
33 4.5%
Cardiac disorder
31 4.2%
Death
31 4.2%
Wobbliness (ataxia)
26 3.5%

All reports for Ivermectin + Pyrantel in dogs