Hyperkalaemia after Meloxicam (Metacam) in dogs

The FDA has received 76 reports of hyperkalaemia in dogs after Meloxicam. That is 0.9% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

76Reports
41%Marked serious
9.2%Recovered
32%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
5 15%
1–2 days
6 18%
3–7 days
9 27%
1–4 weeks
7 21%
Over a month
6 18%

How the animals did

Recovered
7 9.2%
Still unwell when reported
10 13%
Died
13 17%
Euthanised
11 14%
Not known
35 46%

Problems reported at the same time

Age of the animals

Under 1 year
5
1–3 years
11
4–7 years
10
8–11 years
25
12+ years
21

About this medicine

Meloxicam relieves pain and inflammation.

Products with this ingredient include Metacam. 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 Meloxicam cause hyperkalaemia in dogs?
76 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 4 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).

Hyperkalaemia with similar medicines

All reported side effects of Meloxicam in dogs · Medicines most reported with hyperkalaemia