Didn't work as expected after Dexamethasone + Neomycin + Thiabendazole in cats

The FDA has received 72 reports of didn't work as expected in cats after Dexamethasone + Neomycin + Thiabendazole. That is 9.0% of all reports for this medicine, compared with 8.7% across reports for all cat medicines.

72Reports
32%Marked serious
8.3%Recovered
5.6%Died or euthanised
14 daysTypical onset
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How soon it started

Same day
7 11%
1–2 days
2 3.2%
3–7 days
8 13%
1–4 weeks
26 41%
Over a month
20 32%

How the animals did

Recovered
5 6.9%
Recovered with lasting effects
1 1.4%
Still unwell when reported
15 21%
Died
1 1.4%
Euthanised
3 4.2%
Not known
47 65%

Problems reported at the same time

Loss of appetite
11 15%
Weight loss
7 9.7%
Itching
7 9.7%
Liver problems
7 9.7%
Application site reaction
5 6.9%
Underdose
5 6.9%
Wobbliness (ataxia)
4 5.6%
Death
4 5.6%

Age of the animals

Under 1 year
12
1–3 years
11
4–7 years
14
8–11 years
11
12+ years
16

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 didn't work as expected in cats?
72 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 14 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).

Didn't work as expected with similar medicines

All reported side effects of Dexamethasone + Neomycin + Thiabendazole in cats · Medicines most reported with didn't work as expected