Fever after Flunixin Meglumine in horses

67 reports to the FDA describe fever in horses given Flunixin Meglumine. That is 11% of all reports for this medicine, compared with 4.8% across reports for all horse medicines, so it is reported unusually often with this medicine.

67Reports
55%Marked serious
21%Recovered
16%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
11 29%
1–2 days
16 42%
3–7 days
5 13%
1–4 weeks
4 11%
Over a month
2 5.3%

How the animals did

Recovered
14 21%
Still unwell when reported
16 24%
Died
9 13%
Euthanised
2 3.0%
Not known
26 39%

Problems reported at the same time

25 37%
18 27%
11 16%
Abnormal ultrasound finding
7 10%
Myositis
6 9.0%

Age of the animals

Under 1 year
1
1–3 years
12
4–7 years
20
8–11 years
16
12+ years
15

About this medicine

Type: medicine.

Questions owners ask

Can Flunixin Meglumine cause fever in horses?
67 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).

Fever with similar medicines

All reported side effects of Flunixin Meglumine in horses · Medicines most reported with fever