Lateral recumbency after Maropitant (Cerenia) in cats

The FDA has received 111 reports of lateral recumbency in cats after Maropitant. That is 2.9% of all reports for this medicine, compared with 0.5% across reports for all cat medicines, so it is reported unusually often with this medicine.

111Reports

88%Marked serious

18%Recovered

43%Died or euthanised

1 daysTypical onset

How soon it started

Same day

50 47%

1–2 days

30 28%

3–7 days

9 8.4%

1–4 weeks

8 7.5%

Over a month

10 9.3%

How the animals did

Recovered

20 18%

Still unwell when reported

28 25%

Died

14 13%

Euthanised

34 31%

Not known

15 14%

Problems reported at the same time

48 43%

35 32%

34 31%

32 29%

27 24%

26 23%

25 23%

23 21%

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 lateral recumbency in cats?: 111 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).

Lateral recumbency with similar medicines

Lateral recumbency after Mirtazapine (Mirataz) 27 reports · 1.4% of its reports
Lateral recumbency after Capromorelin (Entyce) 37 reports · 4.5% of its reports

All reported side effects of Maropitant in cats · Medicines most reported with lateral recumbency