Lethargy after Polysulfated Glycosaminoglycan in horses

36 reports to the FDA describe lethargy in horses given Polysulfated Glycosaminoglycan. That is 7.0% of all reports for this medicine, compared with 7.9% across reports for all horse medicines.

36Reports
44%Marked serious
39%Recovered
0.0%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
4 25%
1–2 days
5 31%
3–7 days
1 6.3%
1–4 weeks
6 38%
Over a month
0 0.0%

How the animals did

Recovered
14 39%
Still unwell when reported
3 8.3%
Not known
19 53%

Problems reported at the same time

17 47%
15 42%
Liver problems
5 14%
Reluctant to move
5 14%
Wobbliness (ataxia)
5 14%
Leucopenia
4 11%

Age of the animals

Under 1 year
0
1–3 years
4
4–7 years
5
8–11 years
6
12+ years
21

About this medicine

Type: medicine.

Questions owners ask

Can Polysulfated Glycosaminoglycan cause lethargy in horses?
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 2 days 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).

Lethargy with similar medicines

All reported side effects of Polysulfated Glycosaminoglycan in horses · Medicines most reported with lethargy