Ivermectin + Pyrantel (Heartgard Plus) side effects in Newfoundlands

173 FDA reports involve Ivermectin + Pyrantel in a Newfoundland. These are the problems they describe.

Didn't stop worms
61 35%
Didn't work as expected
49 28%
Didn't prevent heartworm
43 25%
Digestive tract disorder
31 18%
Vomiting
23 13%
Diarrhea
19 11%
Cardiac disorder
9 5.2%
Overdose
5 2.9%
Itching
5 2.9%
Underdose
4 2.3%
Loss of appetite
4 2.3%
Breathing problems
4 2.3%

All reports for Ivermectin + Pyrantel in dogs