Ivermectin + Pyrantel (Heartgard Plus) side effects in Cocker English Spaniels

162 FDA reports involve Ivermectin + Pyrantel in a Cocker English Spaniel. These are the problems they describe.

Didn't stop worms
59 36%
Didn't prevent heartworm
36 22%
Vomiting
28 17%
Didn't work as expected
24 15%
Digestive tract disorder
15 9.3%
Diarrhea
15 9.3%
Lethargy
9 5.6%
Seizures
6 3.7%
Itching
5 3.1%
Tremors
5 3.1%
Cardiac disorder
5 3.1%
Overdose
3 1.9%

All reports for Ivermectin + Pyrantel in dogs