Blood problems after Glucosamine in dogs

77 reports to the FDA describe blood problems in dogs given Glucosamine. That is 4.3% of all reports for this medicine, compared with 1.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

77Reports
81%Marked serious
14%Recovered
39%Died or euthanised
41 daysTypical onset
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How soon it started

Same day
6 14%
1–2 days
2 4.5%
3–7 days
5 11%
1–4 weeks
6 14%
Over a month
25 57%

How the animals did

Recovered
10 13%
Recovered with lasting effects
1 1.3%
Still unwell when reported
28 36%
Died
9 12%
Euthanised
21 27%
Not known
8 10%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
2
4–7 years
18
8–11 years
43
12+ years
14

About this medicine

Type: medicine.

Questions owners ask

Can Glucosamine cause blood problems in dogs?
77 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 41 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).

Blood problems with similar medicines

All reported side effects of Glucosamine in dogs · Medicines most reported with blood problems