Blood problems after Amoxicillin in dogs

111 reports to the FDA describe blood problems in dogs given Amoxicillin. That is 8.2% of all reports for this medicine, compared with 1.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

111Reports

72%Marked serious

8.1%Recovered

47%Died or euthanised

12 daysTypical onset

How soon it started

Same day

13 15%

1–2 days

13 15%

3–7 days

13 15%

1–4 weeks

20 23%

Over a month

27 31%

How the animals did

Recovered

9 8.1%

Still unwell when reported

36 32%

Died

20 18%

Euthanised

32 29%

Not known

14 13%

Problems reported at the same time

65 59%

58 52%

52 47%

52 47%

51 46%

38 34%

32 29%

29 26%

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.

Questions owners ask

Can Amoxicillin cause blood problems in dogs?: 111 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 12 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).

Blood problems with similar medicines

Blood problems after Amoxicillin + Clavulanate (Clavamox) 499 reports · 9.3% of its reports
Blood problems after Doxycycline 385 reports · 9.6% of its reports
Blood problems after Cefovecin (Convenia) 322 reports · 8.5% of its reports
Blood problems after Enrofloxacin (Baytril) 279 reports · 7.4% of its reports
Blood problems after Metronidazole 307 reports · 9.9% of its reports

All reported side effects of Amoxicillin in dogs · Medicines most reported with blood problems