Loss of appetite after Maropitant (Cerenia) in cats

The FDA has received 1,270 reports of loss of appetite in cats after Maropitant. That is 33% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported unusually often with this medicine.

1,270Reports

64%Marked serious

17%Recovered

25%Died or euthanised

1 daysTypical onset

How soon it started

Same day

371 32%

1–2 days

308 27%

3–7 days

175 15%

1–4 weeks

158 14%

Over a month

134 12%

How the animals did

Recovered

207 16%

Recovered with lasting effects

3 0.2%

Still unwell when reported

488 38%

Died

124 9.8%

Euthanised

195 15%

Not known

253 20%

Problems reported at the same time

584 46%

459 36%

315 25%

255 20%

252 20%

215 17%

200 16%

181 14%

Age of the animals

Under 1 year

1–3 years

152

4–7 years

252

8–11 years

331

12+ years

419

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 loss of appetite in cats?: 1,270 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).

Loss of appetite with similar medicines

Loss of appetite after Mirtazapine (Mirataz) 486 reports · 26% of its reports
Loss of appetite after Capromorelin (Entyce) 167 reports · 20% of its reports

All reported side effects of Maropitant in cats · Medicines most reported with loss of appetite