Disorientation after Fipronil in dogs
The FDA has received 24 reports of disorientation in dogs after Fipronil. That is 1.7% of all reports for this medicine, compared with 1.0% across reports for all dog medicines, so it is reported unusually often with this medicine.
24Reports
46%Marked serious
50%Recovered
13%Died or euthanised
27 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 disorientation in dogs?
- 24 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 27 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).
Disorientation with similar medicines
- Disorientation after Spinosad (Comfortis) 497 reports · 0.9% of its reports
- Disorientation after Lufenuron + Milbemycin Oxime (Sentinel) 154 reports · 0.6% of its reports
- Disorientation after Imidacloprid + Moxidectin (Advantage Multi) 182 reports · 1.4% of its reports
- Disorientation after Nitenpyram (Capstar) 183 reports · 1.7% of its reports
- Disorientation after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 67 reports · 0.7% of its reports
- Disorientation after Fipronil + S-methoprene (Frontline Plus) 34 reports · 1.2% of its reports
- Disorientation after Imidacloprid 23 reports · 1.2% of its reports
All reported side effects of Fipronil in dogs · Medicines most reported with disorientation