Ivermectin + Pyrantel (Heartgard Plus) side effects in Great Pyreneess

732 FDA reports involve Ivermectin + Pyrantel in a Great Pyrenees. These are the problems they describe.

Didn't prevent heartworm
498 68%
Didn't work as expected
94 13%
Didn't stop worms
91 12%
Cardiac disorder
76 10%
Underdose
39 5.3%
Digestive tract disorder
37 5.1%
Vomiting
35 4.8%
Diarrhea
26 3.6%
Loss of appetite
19 2.6%
Lethargy
18 2.5%
Death
9 1.2%
Weight loss
8 1.1%

All reports for Ivermectin + Pyrantel in dogs