Weakness after Fipronil in dogs
The FDA has received 27 reports of weakness in dogs after Fipronil. That is 1.9% of all reports for this medicine, compared with 1.4% across reports for all dog medicines.
27Reports
78%Marked serious
22%Recovered
30%Died or euthanised
29 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 weakness in dogs?
- 27 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 29 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).
Weakness with similar medicines
- Weakness after Spinosad (Comfortis) 332 reports · 0.6% of its reports
- Weakness after Lufenuron + Milbemycin Oxime (Sentinel) 192 reports · 0.7% of its reports
- Weakness after Imidacloprid + Moxidectin (Advantage Multi) 159 reports · 1.2% of its reports
- Weakness after Nitenpyram (Capstar) 75 reports · 0.7% of its reports
- Weakness after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 55 reports · 0.6% of its reports
- Weakness after Fipronil + S-methoprene (Frontline Plus) 39 reports · 1.3% of its reports
- Weakness after Flumethrin + Imidacloprid (Seresto) 28 reports · 1.2% of its reports
- Weakness after Imidacloprid 21 reports · 1.1% of its reports
All reported side effects of Fipronil in dogs · Medicines most reported with weakness