Heart murmur after Deracoxib (Deramaxx) in dogs

28 reports to the FDA describe heart murmur in dogs given Deracoxib. That is 0.3% of all reports for this medicine, compared with 0.2% across reports for all dog medicines.

28Reports
93%Marked serious
7.1%Recovered
50%Died or euthanised
10 daysTypical onset
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How soon it started

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

How the animals did

Recovered
1 3.6%
Recovered with lasting effects
1 3.6%
Still unwell when reported
11 39%
Died
2 7.1%
Euthanised
12 43%
Not known
1 3.6%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
1
4–7 years
3
8–11 years
14
12+ years
9

About this medicine

Deracoxib relieves pain and inflammation from arthritis or after surgery.

Products with this ingredient include Deramaxx. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

NSAIDs can affect the stomach, liver and kidneys. Vets usually recommend blood tests before and during long-term use.

Questions owners ask

Can Deracoxib cause heart murmur in dogs?
28 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 10 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).

Heart murmur with similar medicines

All reported side effects of Deracoxib in dogs · Medicines most reported with heart murmur