Abnormal menace reflex test after Buprenorphine in cats

The FDA has received 36 reports of abnormal menace reflex test in cats after Buprenorphine. That is 0.6% of all reports for this medicine, compared with 0.2% across reports for all cat medicines, so it is reported unusually often with this medicine.

36Reports
92%Marked serious
31%Recovered
22%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
18 55%
1–2 days
13 39%
3–7 days
0 0.0%
1–4 weeks
0 0.0%
Over a month
2 6.1%

How the animals did

Recovered
10 28%
Recovered with lasting effects
1 2.8%
Still unwell when reported
15 42%
Died
3 8.3%
Euthanised
5 14%
Not known
2 5.6%

Problems reported at the same time

Age of the animals

Under 1 year
9
1–3 years
8
4–7 years
6
8–11 years
5
12+ years
8

About this medicine

Buprenorphine pain relief (an opioid).

Questions owners ask

Can Buprenorphine cause abnormal menace reflex test in cats?
36 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).

Abnormal menace reflex test with similar medicines

All reported side effects of Buprenorphine in cats · Medicines most reported with abnormal menace reflex test