Proteinuria after Cephalexin in dogs

29 reports to the FDA describe proteinuria in dogs given Cephalexin. That is 1.1% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

29Reports
59%Marked serious
14%Recovered
24%Died or euthanised
21 daysTypical onset
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How soon it started

Same day
1 4.5%
1–2 days
4 18%
3–7 days
4 18%
1–4 weeks
6 27%
Over a month
7 32%

How the animals did

Recovered
2 6.9%
Recovered with lasting effects
2 6.9%
Still unwell when reported
14 48%
Died
5 17%
Euthanised
2 6.9%
Not known
4 14%

Problems reported at the same time

10 34%
10 34%
Blood in urine
8 28%
7 24%

Age of the animals

Under 1 year
0
1–3 years
3
4–7 years
13
8–11 years
11
12+ years
2

About this medicine

Type: medicine.

Questions owners ask

Can Cephalexin cause proteinuria in dogs?
29 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 21 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).

Proteinuria with similar medicines

All reported side effects of Cephalexin in dogs · Medicines most reported with proteinuria