Inappropriate defecation after Glucosamine in dogs

The FDA has received 23 reports of inappropriate defecation in dogs after Glucosamine. That is 1.3% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

23Reports

70%Marked serious

17%Recovered

22%Died or euthanised

103 daysTypical onset

How soon it started

Same day

0 0.0%

1–2 days

1 7.7%

3–7 days

0 0.0%

1–4 weeks

2 15%

Over a month

10 77%

How the animals did

Recovered

4 17%

Still unwell when reported

6 26%

Died

1 4.3%

Euthanised

4 17%

Not known

8 35%

Problems reported at the same time

11 48%

9 39%

9 39%

6 26%

5 22%

5 22%

Inappropriate urination

5 22%

Loose stool

4 17%

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 Glucosamine cause inappropriate defecation in dogs?: 23 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 103 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).

Inappropriate defecation with similar medicines

Inappropriate defecation after Melarsomine (Immiticide) 83 reports · 0.4% of its reports
Inappropriate defecation after Diphenhydramine 37 reports · 0.8% of its reports
Inappropriate defecation after Tramadol 22 reports · 0.6% of its reports
Inappropriate defecation after Famotidine 20 reports · 0.8% of its reports

All reported side effects of Glucosamine in dogs · Medicines most reported with inappropriate defecation