Nexgard side effects in dogs
171 reports sent to the FDA between 2016 and 2026 involve Nexgard in dogs. The most reported problems were loss of appetite, vomiting, seizures. 58% were marked serious.
171Reports
58%Marked serious
0.0%Only medicine involved
16%Recovered
4.1%Died or euthanised
Sponsored
About this medicine
Type: medicine.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (125 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Labrador Retriever 14 reports
- German Shepherd Dog 10 reports
- Golden Retriever 10 reports
- Bull - American Pit Terrier 5 reports
- Boston Terrier 4 reports
- Boxer (german Boxer) 3 reports
- Pug 2 reports
- English Bulldog 2 reports
- Border Collie 2 reports
- Greyhound 2 reports
Other medicines for dogs
Melarsomine (Immiticide)22,672 reports · 41% seriousPolysulfated Glycosaminoglycan5,465 reports · 33% seriousDiphenhydramine4,724 reports · 48% seriousButorphanol4,441 reports · 55% seriousCefpodoxime4,055 reports · 36% seriousTramadol3,768 reports · 47% seriousFlorfenicol + Mometasone + Terbinafine3,542 reports · 60% seriousDesoxycorticosterone Pivalate3,337 reports · 38% serious