Wobbliness (ataxia) after Amoxicillin + Clavulanate (Clavamox) in dogs

The FDA has received 280 reports of wobbliness (ataxia) in dogs after Amoxicillin + Clavulanate. That is 5.2% of all reports for this medicine, compared with 2.6% across reports for all dog medicines, so it is reported unusually often with this medicine.

280Reports
44%Marked serious
11%Recovered
29%Died or euthanised
7 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
35 22%
1–2 days
26 17%
3–7 days
20 13%
1–4 weeks
39 25%
Over a month
36 23%

How the animals did

Recovered
29 10%
Recovered with lasting effects
2 0.7%
Still unwell when reported
69 25%
Died
49 18%
Euthanised
31 11%
Not known
100 36%

Problems reported at the same time

Age of the animals

Under 1 year
45
1–3 years
31
4–7 years
50
8–11 years
79
12+ years
72

About this medicine

Amoxicillin treats bacterial infections.

Products with this combination include Clavamox. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Amoxicillin + Clavulanate cause wobbliness (ataxia) in dogs?
280 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 7 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).

Wobbliness (ataxia) with similar medicines

All reported side effects of Amoxicillin + Clavulanate in dogs · Medicines most reported with wobbliness (ataxia)