Behaviour change after Meloxicam (Metacam) in cats

The FDA has received 131 reports of behaviour change in cats after Meloxicam. That is 3.6% of all reports for this medicine, compared with 5.4% across reports for all cat medicines, so it is reported less often than average with this medicine.

131Reports
30%Marked serious
19%Recovered
16%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
44 52%
1–2 days
23 27%
3–7 days
13 15%
1–4 weeks
1 1.2%
Over a month
3 3.6%

How the animals did

Recovered
24 18%
Recovered with lasting effects
1 0.8%
Still unwell when reported
29 22%
Died
10 7.6%
Euthanised
11 8.4%
Not known
56 43%

Problems reported at the same time

Age of the animals

Under 1 year
24
1–3 years
14
4–7 years
35
8–11 years
28
12+ years
23

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 behaviour change in cats?
131 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 the same day 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).

Behaviour change with similar medicines

All reported side effects of Meloxicam in cats · Medicines most reported with behaviour change