Diarrhea after Oxybendazole in horses

45 reports to the FDA describe diarrhea in horses given Oxybendazole. That is 41% of all reports for this medicine, compared with 4.9% across reports for all horse medicines, so it is reported unusually often with this medicine.

45Reports

33%Marked serious

58%Recovered

4.4%Died or euthanised

1 daysTypical onset

How soon it started

Same day

13 30%

1–2 days

30 68%

3–7 days

1 2.3%

1–4 weeks

0 0.0%

Over a month

0 0.0%

How the animals did

Recovered

25 56%

Recovered with lasting effects

1 2.2%

Still unwell when reported

7 16%

Euthanised

2 4.4%

Not known

10 22%

Problems reported at the same time

Colic

27 60%

Lethargy

15 33%

Loss of appetite

13 29%

Decreased activity

4 8.9%

Loose stool

4 8.9%

Tachycardia

3 6.7%

Death

2 4.4%

Fever

2 4.4%

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 Oxybendazole cause diarrhea in horses?: 45 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).

Diarrhea with similar medicines

Diarrhea after Omeprazole 31 reports · 1.6% of its reports
Diarrhea after Pergolide 111 reports · 9.0% of its reports
Diarrhea after Ceftiofur 79 reports · 6.5% of its reports
Diarrhea after Flunixin Meglumine 24 reports · 3.9% of its reports
Diarrhea after Oxibendazole 54 reports · 44% of its reports

All reported side effects of Oxybendazole in horses · Medicines most reported with diarrhea