Itching after Maropitant (Cerenia) in cats

The FDA has received 168 reports of itching in cats after Maropitant. That is 4.4% of all reports for this medicine, compared with 8.9% across reports for all cat medicines, so it is reported less often than average with this medicine.

168Reports
54%Marked serious
14%Recovered
12%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
63 41%
1–2 days
26 17%
3–7 days
23 15%
1–4 weeks
18 12%
Over a month
23 15%

How the animals did

Recovered
24 14%
Still unwell when reported
86 51%
Died
3 1.8%
Euthanised
17 10%
Not known
38 23%

Problems reported at the same time

Age of the animals

Under 1 year
16
1–3 years
24
4–7 years
26
8–11 years
41
12+ years
56

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 itching in cats?
168 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).

Itching with similar medicines

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