Lethargy after Betamethasone + Florfenicol + Terbinafine in cats

The FDA has received 36 reports of lethargy in cats after Betamethasone + Florfenicol + Terbinafine. That is 14% of all reports for this medicine, compared with 14% across reports for all cat medicines.

36Reports
75%Marked serious
17%Recovered
5.6%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
12 36%
1–2 days
14 42%
3–7 days
1 3.0%
1–4 weeks
4 12%
Over a month
2 6.1%

How the animals did

Recovered
5 14%
Recovered with lasting effects
1 2.8%
Still unwell when reported
9 25%
Died
1 2.8%
Euthanised
1 2.8%
Not known
19 53%

Problems reported at the same time

Age of the animals

Under 1 year
2
1–3 years
10
4–7 years
9
8–11 years
7
12+ years
7

About this medicine

Type: medicine.

Questions owners ask

Can Betamethasone + Florfenicol + Terbinafine cause lethargy in cats?
36 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

All reported side effects of Betamethasone + Florfenicol + Terbinafine in cats · Medicines most reported with lethargy