Lethargy after Capromorelin (Entyce) in cats

198 reports to the FDA describe lethargy in cats given Capromorelin. That is 24% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported unusually often with this medicine.

198Reports

53%Marked serious

32%Recovered

19%Died or euthanised

1 daysTypical onset

How soon it started

Same day

94 50%

1–2 days

25 13%

3–7 days

15 8.0%

1–4 weeks

21 11%

Over a month

33 18%

How the animals did

Recovered

64 32%

Still unwell when reported

47 24%

Died

13 6.6%

Euthanised

24 12%

Not known

50 25%

Problems reported at the same time

67 34%

38 19%

37 19%

36 18%

32 16%

30 15%

24 12%

24 12%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Capromorelin stimulates appetite.

Products with this ingredient include Entyce, Elura. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Capromorelin cause lethargy in cats?: 198 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).

Lethargy with similar medicines

Lethargy after Maropitant (Cerenia) 926 reports · 24% of its reports
Lethargy after Mirtazapine (Mirataz) 305 reports · 16% of its reports

All reported side effects of Capromorelin in cats · Medicines most reported with lethargy