Excessive thirst after Fipronil in dogs
23 reports to the FDA describe excessive thirst in dogs given Fipronil. That is 1.6% of all reports for this medicine, compared with 1.4% across reports for all dog medicines.
23Reports
65%Marked serious
48%Recovered
13%Died or euthanised
107 daysTypical onset
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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 excessive thirst in dogs?
- 23 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 107 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).
Excessive thirst with similar medicines
- Excessive thirst after Spinosad (Comfortis) 374 reports · 0.7% of its reports
- Excessive thirst after Lufenuron + Milbemycin Oxime (Sentinel) 131 reports · 0.5% of its reports
- Excessive thirst after Imidacloprid + Moxidectin (Advantage Multi) 114 reports · 0.9% of its reports
- Excessive thirst after Nitenpyram (Capstar) 50 reports · 0.5% of its reports
- Excessive thirst after Fipronil + S-methoprene (Frontline Plus) 23 reports · 0.8% of its reports
- Excessive thirst after Flumethrin + Imidacloprid (Seresto) 21 reports · 0.9% of its reports
All reported side effects of Fipronil in dogs · Medicines most reported with excessive thirst