Allergic reaction after Maropitant (Cerenia) in dogs

1,094 reports to the FDA describe allergic reaction in dogs given Maropitant. That is 9.2% of all reports for this medicine, compared with 2.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

1,094Reports

68%Marked serious

29%Recovered

14%Died or euthanised

Same dayTypical onset

How soon it started

Same day

772 81%

1–2 days

84 8.8%

3–7 days

39 4.1%

1–4 weeks

28 2.9%

Over a month

36 3.8%

How the animals did

Recovered

314 29%

Still unwell when reported

473 43%

Died

108 9.9%

Euthanised

50 4.6%

Not known

149 14%

Problems reported at the same time

527 48%

436 40%

268 24%

238 22%

201 18%

187 17%

167 15%

159 15%

Age of the animals

Under 1 year

160

1–3 years

440

4–7 years

266

8–11 years

159

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 allergic reaction in dogs?: 1,094 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 the same 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).

Allergic reaction with similar medicines

Allergic reaction after Capromorelin (Entyce) 22 reports · 1.5% of its reports

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