Leucocytosis after Fipronil in dogs
20 reports to the FDA describe leucocytosis in dogs given Fipronil. That is 1.4% of all reports for this medicine, compared with 1.0% across reports for all dog medicines.
20Reports
85%Marked serious
15%Recovered
25%Died or euthanised
19 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 leucocytosis 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 19 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).
Leucocytosis with similar medicines
- Leucocytosis after Spinosad (Comfortis) 228 reports · 0.4% of its reports
- Leucocytosis after Lufenuron + Milbemycin Oxime (Sentinel) 114 reports · 0.4% of its reports
- Leucocytosis after Imidacloprid + Moxidectin (Advantage Multi) 60 reports · 0.5% of its reports
- Leucocytosis after Nitenpyram (Capstar) 42 reports · 0.4% of its reports
- Leucocytosis after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 34 reports · 0.3% of its reports
- Leucocytosis after Flumethrin + Imidacloprid (Seresto) 22 reports · 1.0% of its reports
- Leucocytosis after Lufenuron 23 reports · 2.3% of its reports
All reported side effects of Fipronil in dogs · Medicines most reported with leucocytosis