Didn't work as expected after Betamethasone + Terbinafine in dogs

The FDA has received 28 reports of didn't work as expected in dogs after Betamethasone + Terbinafine. That is 50% of all reports for this medicine, compared with 13% across reports for all dog medicines, so it is reported unusually often with this medicine.

28Reports
54%Marked serious
21%Recovered
3.6%Died or euthanised
31 daysTypical onset
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How soon it started

Same day
1 3.8%
1–2 days
1 3.8%
3–7 days
4 15%
1–4 weeks
7 27%
Over a month
13 50%

How the animals did

Recovered
6 21%
Still unwell when reported
5 18%
Euthanised
1 3.6%
Not known
16 57%

Problems reported at the same time

Itching
3 11%
Skin redness
3 11%
Application site reaction
3 11%
Vomiting
3 11%
Head shake - ear disorder
2 7.1%
Swelling
2 7.1%
Pinnal irritation
1 3.6%
Deafness
1 3.6%

Age of the animals

Under 1 year
1
1–3 years
5
4–7 years
6
8–11 years
6
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Betamethasone + Terbinafine cause didn't work as expected in dogs?
28 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 31 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 Betamethasone + Terbinafine in dogs · Medicines most reported with didn't work as expected