Skip to content

Ivermectin + Pyrantel (Heartgard Plus) side effects in Old English Sheepdogs

57 FDA reports involve Ivermectin + Pyrantel in a Old English Sheepdog. These are the problems they describe.

Didn't stop worms

22 39%

Didn't work as expected

14 25%

11 19%

Didn't prevent heartworm

6 11%

Digestive tract disorder

5 8.8%

Loss of appetite

4 7.0%

4 7.0%

3 5.3%

3 5.3%

2 3.5%

2 3.5%

2 3.5%

All reports for Ivermectin + Pyrantel in dogs