Fever after Tiletamine + Zolazepam in cats

The FDA has received 135 reports of fever in cats after Tiletamine + Zolazepam. That is 8.1% 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.

135Reports
22%Marked serious
22%Recovered
9.6%Died or euthanised
Same dayTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
42 81%
1–2 days
5 9.6%
3–7 days
4 7.7%
1–4 weeks
0 0.0%
Over a month
1 1.9%

How the animals did

Recovered
30 22%
Still unwell when reported
18 13%
Died
11 8.1%
Euthanised
2 1.5%
Not known
74 55%

Problems reported at the same time

Age of the animals

Under 1 year
62
1–3 years
26
4–7 years
13
8–11 years
5
12+ years
0

About this medicine

Type: medicine.

Questions owners ask

Can Tiletamine + Zolazepam cause fever in cats?
135 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

All reported side effects of Tiletamine + Zolazepam in cats · Medicines most reported with fever