Drug dose omission after Spinosad (Comfortis) in dogs
The FDA has received 498 reports of drug dose omission in dogs after Spinosad. That is 0.9% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported unusually often with this medicine.
498Reports
2.4%Marked serious
13%Recovered
0.6%Died or euthanised
152 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
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 drug dose omission in dogs?
- 498 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 152 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).
Drug dose omission with similar medicines
- Drug dose omission after Lufenuron + Milbemycin Oxime (Sentinel) 281 reports · 1.1% of its reports
- Drug dose omission after Imidacloprid + Moxidectin (Advantage Multi) 53 reports · 0.4% of its reports
- Drug dose omission after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 233 reports · 2.3% of its reports
All reported side effects of Spinosad in dogs · Medicines most reported with drug dose omission