Death after Nitazoxanide in horses

The FDA has received 41 reports of death in horses after Nitazoxanide. That is 62% of all reports for this medicine, compared with 11% across reports for all horse medicines, so it is reported unusually often with this medicine.

41Reports
0.0%Marked serious
0.0%Recovered
95%Died or euthanised
–Typical onset
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How the animals did

Died
39 95%
Not known
2 4.9%

Problems reported at the same time

16 39%
Laminitis
10 24%
Lethargy
9 22%
Wobbliness (ataxia)
8 20%
Tachycardia
8 20%
Diarrhea
8 20%

Age of the animals

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

About this medicine

Type: medicine.

Questions owners ask

Can Nitazoxanide cause death in horses?
41 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).

Death with similar medicines

All reported side effects of Nitazoxanide in horses · Medicines most reported with death