Overdose after Maropitant (Cerenia) in dogs

184 reports to the FDA describe overdose in dogs given Maropitant. That is 1.5% of all reports for this medicine, compared with 1.3% across reports for all dog medicines.

184Reports
72%Marked serious
23%Recovered
28%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
82 49%
1–2 days
32 19%
3–7 days
18 11%
1–4 weeks
18 11%
Over a month
18 11%

How the animals did

Recovered
43 23%
Still unwell when reported
64 35%
Died
28 15%
Euthanised
23 13%
Not known
26 14%

Problems reported at the same time

Age of the animals

Under 1 year
25
1–3 years
33
4–7 years
35
8–11 years
51
12+ years
34

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 overdose in dogs?
184 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 1 day 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).

Overdose with similar medicines

All reported side effects of Maropitant in dogs · Medicines most reported with overdose