Ivermectin + Pyrantel (Heartgard Plus) side effects in Yorkshire Terriers

2,072 FDA reports involve Ivermectin + Pyrantel in a Yorkshire Terrier. These are the problems they describe.

Vomiting
770 37%
Diarrhea
337 16%
Didn't stop worms
320 15%
Didn't work as expected
284 14%
Lethargy
271 13%
Didn't prevent heartworm
227 11%
Digestive tract disorder
179 8.6%
Loss of appetite
165 8.0%
Tremors
96 4.6%
Itching
80 3.9%
Seizures
76 3.7%
Behaviour change
55 2.7%

All reports for Ivermectin + Pyrantel in dogs