Hair loss after Leukemia in cats

28 reports to the FDA describe hair loss in cats given Leukemia. That is 39% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported unusually often with this medicine.

28Reports
64%Marked serious
39%Recovered
0.0%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
4 16%
1–2 days
13 52%
3–7 days
7 28%
1–4 weeks
1 4.0%
Over a month
0 0.0%

How the animals did

Recovered
11 39%
Not known
17 61%

Problems reported at the same time

Application site reaction
14 50%
Itching
10 36%
Skin redness
6 21%
Behaviour change
3 11%
Lethargy
3 11%
Overdose
2 7.1%
Restlessness or agitation
2 7.1%
Skin rash or irritation
1 3.6%

Age of the animals

Under 1 year
1
1–3 years
5
4–7 years
11
8–11 years
10
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Leukemia cause hair loss in cats?
28 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).

Hair loss with similar medicines

All reported side effects of Leukemia in cats · Medicines most reported with hair loss