Breathing problems after Denamarin in dogs

The FDA has received 39 reports of breathing problems in dogs after Denamarin. That is 10% of all reports for this medicine, compared with 2.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

39Reports
90%Marked serious
5.1%Recovered
33%Died or euthanised
14 daysTypical onset
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How soon it started

Same day
8 22%
1–2 days
3 8.1%
3–7 days
5 14%
1–4 weeks
9 24%
Over a month
12 32%

How the animals did

Recovered
2 5.1%
Still unwell when reported
19 49%
Died
6 15%
Euthanised
7 18%
Not known
5 13%

Problems reported at the same time

15 38%
13 33%
10 26%
Walking difficulty
8 21%

Age of the animals

Under 1 year
0
1–3 years
0
4–7 years
4
8–11 years
6
12+ years
29

About this medicine

Type: medicine.

Questions owners ask

Can Denamarin cause breathing problems in dogs?
39 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 14 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).

Breathing problems with similar medicines

All reported side effects of Denamarin in dogs · Medicines most reported with breathing problems