Blood problems after Amantadine in dogs

The FDA has received 35 reports of blood problems in dogs after Amantadine. That is 6.9% of all reports for this medicine, compared with 1.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

35Reports
89%Marked serious
11%Recovered
51%Died or euthanised
49 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
5 17%
1–2 days
2 6.7%
3–7 days
1 3.3%
1–4 weeks
5 17%
Over a month
17 57%

How the animals did

Recovered
4 11%
Still unwell when reported
11 31%
Died
4 11%
Euthanised
14 40%
Not known
2 5.7%

Problems reported at the same time

18 51%
17 49%
10 29%
Leucocytosis
8 23%

Age of the animals

Under 1 year
0
1–3 years
1
4–7 years
6
8–11 years
14
12+ years
14

About this medicine

Type: medicine.

Questions owners ask

Can Amantadine cause blood problems in dogs?
35 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 49 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).

Blood problems with similar medicines

All reported side effects of Amantadine in dogs · Medicines most reported with blood problems