Lethargy after Dexamethasone + Neomycin + Thiabendazole in cats

The FDA has received 201 reports of lethargy in cats after Dexamethasone + Neomycin + Thiabendazole. That is 25% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported unusually often with this medicine.

201Reports

38%Marked serious

16%Recovered

16%Died or euthanised

4 daysTypical onset

How soon it started

Same day

36 23%

1–2 days

36 23%

3–7 days

29 18%

1–4 weeks

44 28%

Over a month

15 9.4%

How the animals did

Recovered

32 16%

Still unwell when reported

45 22%

Died

13 6.5%

Euthanised

19 9.5%

Not known

92 46%

Problems reported at the same time

108 54%

49 24%

44 22%

34 17%

30 15%

24 12%

21 10%

19 9.5%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Dexamethasone reduces inflammation and immune activity.

Steroids commonly cause increased thirst, urination and appetite, especially at higher doses.

Questions owners ask

Can Dexamethasone + Neomycin + Thiabendazole cause lethargy in cats?: 201 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 4 days 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 Prednisolone 237 reports · 19% of its reports
Lethargy after Prednisone 162 reports · 18% of its reports
Lethargy after Dexamethasone 258 reports · 34% of its reports

All reported side effects of Dexamethasone + Neomycin + Thiabendazole in cats · Medicines most reported with lethargy