Incorrect dose administered after Spinosad (Comfortis) in cats
The FDA has received 35 reports of incorrect dose administered in cats after Spinosad. That is 0.3% of all reports for this medicine, compared with 0.1% across reports for all cat medicines, so it is reported unusually often with this medicine.
35Reports
20%Marked serious
34%Recovered
8.6%Died or euthanised
20 daysTypical onset
Sponsored
How soon it started
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Spinosad kills fleas; monthly chewable.
Products with this ingredient include Comfortis. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.
Questions owners ask
- Can Spinosad cause incorrect dose administered in cats?
- 35 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 20 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).
Incorrect dose administered with similar medicines
- Incorrect dose administered after Nitenpyram (Capstar) 30 reports · 0.3% of its reports
- Incorrect dose administered after Imidacloprid + Moxidectin (Advantage Multi) 51 reports · 0.6% of its reports
All reported side effects of Spinosad in cats · Medicines most reported with incorrect dose administered