Urinary tract infection after Pimobendan (Vetmedin) in dogs

The FDA has received 72 reports of urinary tract infection in dogs after Pimobendan. That is 1.3% 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.

72Reports
50%Marked serious
22%Recovered
14%Died or euthanised
109 daysTypical onset
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How soon it started

Same day
5 12%
1–2 days
1 2.4%
3–7 days
6 15%
1–4 weeks
5 12%
Over a month
24 59%

How the animals did

Recovered
16 22%
Still unwell when reported
24 33%
Died
5 6.9%
Euthanised
5 6.9%
Not known
22 31%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
0
4–7 years
1
8–11 years
24
12+ years
43

About this medicine

Pimobendan treats heart failure and some heart disease.

Products with this ingredient include Vetmedin. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Pimobendan cause urinary tract infection in dogs?
72 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 109 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).

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