Amantadine side effects in dogs

508 reports sent to the FDA between 2007 and 2026 involve Amantadine in dogs. The most reported problems were loss of appetite, vomiting, lethargy. 57% were marked serious.

508Reports
57%Marked serious
0.0%Only medicine involved
12%Recovered
22%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't stop worms
4 0.8%
Didn't prevent heartworm
1 0.2%

How soon problems started

Same day
56 15%
1–2 days
38 9.8%
3–7 days
31 8.0%
1–4 weeks
81 21%
Over a month
180 47%

Time from the first dose to the first sign, where both dates were reported (386 reports).

How the animals did

Recovered
59 12%
Still unwell when reported
254 50%
Died
35 6.9%
Euthanised
75 15%
Not known
85 17%

Breeds named most often

Popular breeds appear more often because there are more of them.

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