Lethargy after Interleukin- Monoclonal Antibody in dogs

The FDA has received 27 reports of lethargy in dogs after Interleukin- Monoclonal Antibody. That is 15% of all reports for this medicine, compared with 11% across reports for all dog medicines.

27Reports
56%Marked serious
15%Recovered
26%Died or euthanised
73 daysTypical onset
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How soon it started

Same day
2 12%
1–2 days
4 24%
3–7 days
1 5.9%
1–4 weeks
0 0.0%
Over a month
10 59%

How the animals did

Recovered
4 15%
Still unwell when reported
13 48%
Died
3 11%
Euthanised
4 15%
Not known
3 11%

Problems reported at the same time

12 44%
11 41%
Death
7 26%
Behaviour change
6 22%
Lymphopenia
6 22%
Weight loss
5 19%

Age of the animals

Under 1 year
0
1–3 years
2
4–7 years
9
8–11 years
12
12+ years
2

About this medicine

Type: medicine.

Questions owners ask

Can Interleukin- Monoclonal Antibody cause lethargy in dogs?
27 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 73 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).

Lethargy with similar medicines

All reported side effects of Interleukin- Monoclonal Antibody in dogs · Medicines most reported with lethargy