Weight loss after Fipronil in dogs
28 reports to the FDA describe weight loss in dogs given Fipronil. That is 2.0% of all reports for this medicine, compared with 1.7% across reports for all dog medicines.
28Reports
71%Marked serious
18%Recovered
29%Died or euthanised
84 daysTypical onset
Sponsored
How soon it started
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Fipronil kills fleas and ticks (spot-on).
Questions owners ask
- Can Fipronil cause weight loss in dogs?
- 28 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
- How soon after a dose was it reported?
- In half of the reports with dates, it started within 84 days of the first dose.
- What should I do?
- Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).
Weight loss with similar medicines
- Weight loss after Spinosad (Comfortis) 531 reports · 0.9% of its reports
- Weight loss after Lufenuron + Milbemycin Oxime (Sentinel) 280 reports · 1.1% of its reports
- Weight loss after Imidacloprid + Moxidectin (Advantage Multi) 236 reports · 1.8% of its reports
- Weight loss after Nitenpyram (Capstar) 89 reports · 0.8% of its reports
- Weight loss after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 77 reports · 0.8% of its reports
- Weight loss after Fipronil + S-methoprene (Frontline Plus) 29 reports · 1.0% of its reports
- Weight loss after Flumethrin + Imidacloprid (Seresto) 57 reports · 2.5% of its reports
All reported side effects of Fipronil in dogs · Medicines most reported with weight loss