Tremors after Buprenorphine in cats

The FDA has received 126 reports of tremors in cats after Buprenorphine. That is 2.3% of all reports for this medicine, compared with 2.6% across reports for all cat medicines.

126Reports

44%Marked serious

34%Recovered

12%Died or euthanised

Same dayTypical onset

How soon it started

Same day

66 55%

1–2 days

36 30%

3–7 days

7 5.8%

1–4 weeks

6 5.0%

Over a month

5 4.2%

How the animals did

Recovered

42 33%

Recovered with lasting effects

1 0.8%

Still unwell when reported

37 29%

Died

4 3.2%

Euthanised

11 8.7%

Not known

31 25%

Problems reported at the same time

37 29%

33 26%

32 25%

27 21%

24 19%

Restlessness or agitation

23 18%

Itching

22 17%

Seizures

17 13%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Buprenorphine pain relief (an opioid).

Questions owners ask

Can Buprenorphine cause tremors in cats?: 126 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).

Tremors with similar medicines

Tremors after Dexmedetomidine (Dexdomitor) 63 reports · 2.4% of its reports

All reported side effects of Buprenorphine in cats · Medicines most reported with tremors