Afoxolaner (NexGard) side effects in Mastiffs

132 FDA reports involve Afoxolaner in a Mastiff. These are the problems they describe.

Vomiting
34 26%
Didn't work as expected
20 15%
Loss of appetite
19 14%
Diarrhea
18 14%
Didn't stop ticks
16 12%
Lethargy
15 11%
Seizures
14 11%
Death
12 9.1%
Itching
11 8.3%
Breathing problems
10 7.6%
Drooling
9 6.8%
Didn't stop fleas
7 5.3%

All reports for Afoxolaner in dogs