Swelling after Fipronil in dogs
20 reports to the FDA describe swelling in dogs given Fipronil. That is 1.4% of all reports for this medicine, compared with 2.8% across reports for all dog medicines, so it is reported less often than average with this medicine.
20Reports
75%Marked serious
45%Recovered
10%Died or euthanised
3 daysTypical onset
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 swelling in dogs?
- 20 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 3 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).
Swelling with similar medicines
- Swelling after Spinosad (Comfortis) 399 reports · 0.7% of its reports
- Swelling after Lufenuron + Milbemycin Oxime (Sentinel) 219 reports · 0.8% of its reports
- Swelling after Imidacloprid + Moxidectin (Advantage Multi) 218 reports · 1.7% of its reports
- Swelling after Nitenpyram (Capstar) 127 reports · 1.2% of its reports
- Swelling after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 70 reports · 0.7% of its reports
- Swelling after Fipronil + S-methoprene (Frontline Plus) 42 reports · 1.4% of its reports
- Swelling after Flumethrin + Imidacloprid (Seresto) 47 reports · 2.1% of its reports
- Swelling after Lufenuron 44 reports · 4.3% of its reports
All reported side effects of Fipronil in dogs · Medicines most reported with swelling
