Disorientation after Maropitant (Cerenia) in dogs

The FDA has received 226 reports of disorientation in dogs after Maropitant. That is 1.9% of all reports for this medicine, compared with 1.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

226Reports

69%Marked serious

19%Recovered

31%Died or euthanised

1 daysTypical onset

How soon it started

Same day

76 41%

1–2 days

37 20%

3–7 days

29 16%

1–4 weeks

24 13%

Over a month

21 11%

How the animals did

Recovered

41 18%

Recovered with lasting effects

1 0.4%

Still unwell when reported

80 35%

Died

23 10%

Euthanised

47 21%

Not known

34 15%

Problems reported at the same time

112 50%

106 47%

102 45%

67 30%

61 27%

54 24%

53 23%

51 23%

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 disorientation in dogs?: 226 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).

Disorientation with similar medicines

Disorientation after Capromorelin (Entyce) 38 reports · 2.5% of its reports

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