Pacing after Maropitant (Cerenia) in dogs

The FDA has received 88 reports of pacing in dogs after Maropitant. That is 0.7% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

88Reports

68%Marked serious

18%Recovered

28%Died or euthanised

2 daysTypical onset

How soon it started

Same day

27 39%

1–2 days

11 16%

3–7 days

7 10%

1–4 weeks

8 11%

Over a month

17 24%

How the animals did

Recovered

16 18%

Still unwell when reported

37 42%

Died

7 8.0%

Euthanised

18 20%

Not known

10 11%

Problems reported at the same time

46 52%

43 49%

36 41%

31 35%

30 34%

27 31%

26 30%

23 26%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

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 pacing in dogs?: 88 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 2 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 Maropitant in dogs · Medicines most reported with pacing