Death after Amoxicillin + Clavulanate (Clavamox) in cats

372 reports to the FDA describe death in cats given Amoxicillin + Clavulanate. That is 16% of all reports for this medicine, compared with 8.9% across reports for all cat medicines, so it is reported unusually often with this medicine.

372Reports
58%Marked serious
0.0%Recovered
98%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
33 18%
1–2 days
44 23%
3–7 days
46 24%
1–4 weeks
41 22%
Over a month
24 13%

How the animals did

Died
257 69%
Euthanised
109 29%
Not known
6 1.6%

Problems reported at the same time

Age of the animals

Under 1 year
81
1–3 years
43
4–7 years
69
8–11 years
63
12+ years
98

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 death in cats?
372 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 4 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).

Death with similar medicines

All reported side effects of Amoxicillin + Clavulanate in cats · Medicines most reported with death