Ivermectin + Pyrantel (Heartgard Plus) side effects in Black And Tan Coonhounds

207 FDA reports involve Ivermectin + Pyrantel in a Black And Tan Coonhound. These are the problems they describe.

Didn't prevent heartworm
81 39%
Didn't stop worms
65 31%
Didn't work as expected
49 24%
Digestive tract disorder
39 19%
Cardiac disorder
21 10%
Vomiting
14 6.8%
Diarrhea
10 4.8%
Seizures
5 2.4%
Breathing problems
4 1.9%
Lethargy
4 1.9%
Blood in faeces
3 1.4%
Injection site reaction
3 1.4%

All reports for Ivermectin + Pyrantel in dogs