Pneumonia after Amoxicillin + Clavulanate (Clavamox) in dogs

The FDA has received 78 reports of pneumonia in dogs after Amoxicillin + Clavulanate. That is 1.5% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.

78Reports

71%Marked serious

3.8%Recovered

49%Died or euthanised

7 daysTypical onset

How soon it started

Same day

8 16%

1–2 days

8 16%

3–7 days

10 20%

1–4 weeks

7 14%

Over a month

18 35%

How the animals did

Recovered

3 3.8%

Still unwell when reported

23 29%

Died

23 29%

Euthanised

15 19%

Not known

14 18%

Problems reported at the same time

Death

38 49%

Abnormal radiograph finding

37 47%

35 45%

29 37%

25 32%

23 29%

22 28%

22 28%

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 pneumonia in dogs?: 78 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).

Pneumonia with similar medicines

Pneumonia after Doxycycline 31 reports · 0.8% of its reports
Pneumonia after Enrofloxacin (Baytril) 64 reports · 1.7% of its reports
Pneumonia after Metronidazole 20 reports · 0.6% of its reports

All reported side effects of Amoxicillin + Clavulanate in dogs · Medicines most reported with pneumonia