Afoxolaner (NexGard) side effects in Border Collies

547 FDA reports involve Afoxolaner in a Border Collie. These are the problems they describe.

Vomiting
146 27%
Didn't work as expected
85 16%
Didn't stop ticks
74 14%
Lethargy
71 13%
Diarrhea
62 11%
Itching
61 11%
Seizures
48 8.8%
Loss of appetite
46 8.4%
Didn't stop fleas
24 4.4%
Wobbliness (ataxia)
22 4.0%
Breathing problems
21 3.8%
Behaviour change
20 3.7%

All reports for Afoxolaner in dogs