Lethargy after Chondroitin + Glucosamine in cats

37 reports to the FDA describe lethargy in cats given Chondroitin + Glucosamine. That is 17% of all reports for this medicine, compared with 14% across reports for all cat medicines.

37Reports
65%Marked serious
14%Recovered
38%Died or euthanised
33 daysTypical onset
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How soon it started

Same day
6 19%
1–2 days
4 13%
3–7 days
2 6.5%
1–4 weeks
3 9.7%
Over a month
16 52%

How the animals did

Recovered
5 14%
Still unwell when reported
15 41%
Died
2 5.4%
Euthanised
12 32%
Not known
3 8.1%

Problems reported at the same time

14 38%
Blood problems
7 19%
Abnormal radiograph finding
7 19%
Behaviour change
7 19%
Breathing problems
6 16%

Age of the animals

Under 1 year
0
1–3 years
0
4–7 years
7
8–11 years
4
12+ years
25

About this medicine

Type: medicine.

Questions owners ask

Can Chondroitin + Glucosamine cause lethargy in cats?
37 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 33 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 Chondroitin + Glucosamine in cats · Medicines most reported with lethargy