Vocalising after Amoxicillin + Clavulanate (Clavamox) in cats

The FDA has received 79 reports of vocalising in cats after Amoxicillin + Clavulanate. That is 3.3% of all reports for this medicine, compared with 3.1% across reports for all cat medicines.

79Reports

49%Marked serious

15%Recovered

35%Died or euthanised

3 daysTypical onset

How soon it started

Same day

9 17%

1–2 days

14 27%

3–7 days

8 15%

1–4 weeks

13 25%

Over a month

8 15%

How the animals did

Recovered

12 15%

Still unwell when reported

18 23%

Died

17 22%

Euthanised

11 14%

Not known

21 27%

Problems reported at the same time

33 42%

30 38%

28 35%

25 32%

16 20%

15 19%

15 19%

11 14%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

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 vocalising in cats?: 79 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 3 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).

Vocalising with similar medicines

Vocalising after Cefovecin (Convenia) 378 reports · 4.4% of its reports
Vocalising after Enrofloxacin (Baytril) 69 reports · 4.4% of its reports

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