Urinary tract infection after Amoxicillin in dogs

74 reports to the FDA describe urinary tract infection in dogs given Amoxicillin. That is 5.5% of all reports for this medicine, compared with 0.5% across reports for all dog medicines, so it is reported unusually often with this medicine.

74Reports
76%Marked serious
4.1%Recovered
22%Died or euthanised
22 daysTypical onset
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How soon it started

Same day
8 14%
1–2 days
6 11%
3–7 days
10 18%
1–4 weeks
10 18%
Over a month
23 40%

How the animals did

Recovered
3 4.1%
Still unwell when reported
40 54%
Died
6 8.1%
Euthanised
10 14%
Not known
15 20%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
7
4–7 years
18
8–11 years
15
12+ years
30

About this medicine

Amoxicillin treats bacterial infections.

Questions owners ask

Can Amoxicillin cause urinary tract infection in dogs?
74 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 22 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).

Urinary tract infection with similar medicines

All reported side effects of Amoxicillin in dogs · Medicines most reported with urinary tract infection