Decreased urine concentration after Maropitant (Cerenia) in dogs

133 reports to the FDA describe decreased urine concentration in dogs given Maropitant. 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.

133Reports
61%Marked serious
9.0%Recovered
33%Died or euthanised
10 daysTypical onset
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How soon it started

Same day
15 15%
1–2 days
17 17%
3–7 days
13 13%
1–4 weeks
25 25%
Over a month
30 30%

How the animals did

Recovered
12 9.0%
Still unwell when reported
59 44%
Died
18 14%
Euthanised
26 20%
Not known
18 14%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
24
4–7 years
37
8–11 years
42
12+ years
26

About this medicine

Maropitant prevents vomiting and motion sickness.

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

Questions owners ask

Can Maropitant cause decreased urine concentration in dogs?
133 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 10 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).

Decreased urine concentration with similar medicines

All reported side effects of Maropitant in dogs · Medicines most reported with decreased urine concentration