Fever after Buprenorphine in cats

683 reports to the FDA describe fever in cats given Buprenorphine. That is 12% of all reports for this medicine, compared with 3.2% across reports for all cat medicines, so it is reported unusually often with this medicine.

683Reports

34%Marked serious

37%Recovered

6.3%Died or euthanised

Same dayTypical onset

How soon it started

Same day

412 67%

1–2 days

115 19%

3–7 days

34 5.5%

1–4 weeks

30 4.9%

Over a month

25 4.1%

How the animals did

Recovered

253 37%

Recovered with lasting effects

1 0.1%

Still unwell when reported

265 39%

Died

22 3.2%

Euthanised

21 3.1%

Not known

121 18%

Problems reported at the same time

Loss of appetite

161 24%

Lethargy

105 15%

Behaviour change

92 13%

Restlessness or agitation

87 13%

60 8.8%

57 8.3%

52 7.6%

41 6.0%

Age of the animals

Under 1 year

201

1–3 years

124

4–7 years

116

8–11 years

12+ years

About this medicine

Buprenorphine pain relief (an opioid).

Questions owners ask

Can Buprenorphine cause fever in cats?: 683 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).

Fever with similar medicines

Fever after Dexmedetomidine (Dexdomitor) 258 reports · 9.8% of its reports

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