Blood in urine after Amoxicillin in dogs

27 reports to the FDA describe blood in urine in dogs given Amoxicillin. That is 2.0% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

27Reports

70%Marked serious

0.0%Recovered

26%Died or euthanised

33 daysTypical onset

How soon it started

Same day

4 17%

1–2 days

2 8.7%

3–7 days

2 8.7%

1–4 weeks

3 13%

Over a month

12 52%

How the animals did

Still unwell when reported

16 59%

Died

1 3.7%

Euthanised

6 22%

Not known

4 15%

Problems reported at the same time

Liver problems

14 52%

Vomiting

11 41%

Loss of appetite

11 41%

Urinary tract infection

11 41%

10 37%

10 37%

10 37%

8 30%

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 in urine in dogs?: 27 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 33 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 in urine with similar medicines

Blood in urine after Amoxicillin + Clavulanate (Clavamox) 69 reports · 1.3% of its reports
Blood in urine after Doxycycline 32 reports · 0.8% of its reports
Blood in urine after Cefovecin (Convenia) 22 reports · 0.6% of its reports
Blood in urine after Enrofloxacin (Baytril) 34 reports · 0.9% of its reports
Blood in urine after Metronidazole 26 reports · 0.8% of its reports

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