Wobbliness (ataxia) after Imidacloprid + Moxidectin (Advantage Multi) in cats
The FDA has received 530 reports of wobbliness (ataxia) in cats after Imidacloprid + Moxidectin. That is 6.5% of all reports for this medicine, compared with 4.7% across reports for all cat medicines.
530Reports
64%Marked serious
35%Recovered
9.1%Died or euthanised
1 daysTypical onset
Sponsored
How soon it started
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Imidacloprid kills fleas (spot-on or collar). Moxidectin prevents heartworm disease (monthly topical, or a 6- or 12-month injection for dogs).
Products with this combination include Advantage Multi. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.
Questions owners ask
- Can Imidacloprid + Moxidectin cause wobbliness (ataxia) in cats?
- 530 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 1 day 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).
Wobbliness (ataxia) with similar medicines
- Wobbliness (ataxia) after Spinosad (Comfortis) 186 reports · 1.6% of its reports
- Wobbliness (ataxia) after Nitenpyram (Capstar) 171 reports · 2.0% of its reports
- Wobbliness (ataxia) after Lufenuron 30 reports · 2.7% of its reports
All reported side effects of Imidacloprid + Moxidectin in cats · Medicines most reported with wobbliness (ataxia)