Horizontal nystagmus after Florfenicol + Mometasone + Terbinafine in cats

36 reports to the FDA describe horizontal nystagmus in cats given Florfenicol + Mometasone + Terbinafine. That is 5.2% of all reports for this medicine, compared with 0.1% across reports for all cat medicines, so it is reported unusually often with this medicine.

36Reports

75%Marked serious

8.3%Recovered

8.3%Died or euthanised

1 daysTypical onset

How soon it started

Same day

13 41%

1–2 days

12 38%

3–7 days

5 16%

1–4 weeks

0 0.0%

Over a month

2 6.3%

How the animals did

Recovered

3 8.3%

Still unwell when reported

7 19%

Euthanised

3 8.3%

Not known

23 64%

Problems reported at the same time

Wobbliness (ataxia)

25 69%

Loss of appetite

23 64%

Head tilt - ear disorder

18 50%

11 31%

8 22%

8 22%

8 22%

7 19%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Florfenicol + Mometasone + Terbinafine cause horizontal nystagmus 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).

All reported side effects of Florfenicol + Mometasone + Terbinafine in cats · Medicines most reported with horizontal nystagmus