Allergic reaction after Selenium Vitamin E in horses

The FDA has received 39 reports of allergic reaction in horses after Selenium Vitamin E. That is 47% of all reports for this medicine, compared with 7.5% across reports for all horse medicines, so it is reported unusually often with this medicine.

39Reports
0.0%Marked serious
0.0%Recovered
67%Died or euthanised
–Typical onset
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How the animals did

Died
26 67%
Not known
13 33%

Problems reported at the same time

26 67%
Collapse
14 36%
Breathing problems
7 18%
Abdominal pain
6 15%
Hyperhidrosis
6 15%
Wobbliness (ataxia)
6 15%
Pale mucous membrane
5 13%
Tachycardia
4 10%

Age of the animals

Under 1 year
1
1–3 years
8
4–7 years
9
8–11 years
8
12+ years
6

About this medicine

Type: medicine.

Questions owners ask

Can Selenium Vitamin E cause allergic reaction in horses?
39 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.
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).

Allergic reaction with similar medicines

All reported side effects of Selenium Vitamin E in horses · Medicines most reported with allergic reaction