Didn't work as expected after Lidocaine in dogs

The FDA has received 37 reports of didn't work as expected in dogs after Lidocaine. That is 15% of all reports for this medicine, compared with 13% across reports for all dog medicines.

37Reports
57%Marked serious
24%Recovered
27%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
10 32%
1–2 days
7 23%
3–7 days
3 9.7%
1–4 weeks
5 16%
Over a month
6 19%

How the animals did

Recovered
9 24%
Still unwell when reported
6 16%
Died
5 14%
Euthanised
5 14%
Not known
12 32%

Problems reported at the same time

10 27%
Abnormal cytology
6 16%
Abnormal radiograph finding
5 14%

Age of the animals

Under 1 year
4
1–3 years
6
4–7 years
12
8–11 years
10
12+ years
4

About this medicine

Type: medicine.

Questions owners ask

Can Lidocaine cause didn't work as expected in dogs?
37 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 2 days 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).

Didn't work as expected with similar medicines

All reported side effects of Lidocaine in dogs · Medicines most reported with didn't work as expected