Seizures after Fipronil in dogs
The FDA has received 72 reports of seizures in dogs after Fipronil. That is 5.1% of all reports for this medicine, compared with 4.4% across reports for all dog medicines.
72Reports
86%Marked serious
49%Recovered
11%Died or euthanised
42 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 seizures in dogs?
- 72 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 42 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).
Seizures with similar medicines
- Seizures after Spinosad (Comfortis) 2,116 reports · 3.7% of its reports
- Seizures after Lufenuron + Milbemycin Oxime (Sentinel) 937 reports · 3.6% of its reports
- Seizures after Imidacloprid + Moxidectin (Advantage Multi) 520 reports · 4.0% of its reports
- Seizures after Nitenpyram (Capstar) 331 reports · 3.1% of its reports
- Seizures after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 279 reports · 2.8% of its reports
- Seizures after Fipronil + S-methoprene (Frontline Plus) 214 reports · 7.2% of its reports
- Seizures after Flumethrin + Imidacloprid (Seresto) 123 reports · 5.4% of its reports
- Seizures after Imidacloprid 43 reports · 2.3% of its reports
- Seizures after Lufenuron 65 reports · 6.4% of its reports
- Seizures after Imidacloprid + Permethrin + Pyriproxyfen 34 reports · 4.6% of its reports
All reported side effects of Fipronil in dogs · Medicines most reported with seizures