Microchip side effects in dogs

52 reports sent to the FDA between 2012 and 2025 involve Microchip in dogs. The most reported problems were lethargy, swelling, vomiting. 42% were marked serious.

52Reports
42%Marked serious
0.0%Only medicine involved
25%Recovered
12%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Lethargy
15 29%
Swelling
15 29%
Vomiting
14 27%
Loss of appetite
12 23%
Injection site reaction
11 21%
Hair loss
9 17%
Blood problems
8 15%
Fever
8 15%
Itching
8 15%
Monocytosis
7 13%
Diarrhea
6 12%
Liver problems
5 9.6%
Hyponatremia
5 9.6%
Drooling
5 9.6%
Behaviour change
4 7.7%

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 work as expected
5 9.6%
Didn't stop worms
1 1.9%
Didn't prevent heartworm
1 1.9%

How soon problems started

Same day
20 41%
1–2 days
9 18%
3–7 days
6 12%
1–4 weeks
8 16%
Over a month
6 12%

Time from the first dose to the first sign, where both dates were reported (49 reports).

How the animals did

Recovered
13 25%
Still unwell when reported
28 54%
Died
4 7.7%
Euthanised
2 3.8%
Not known
5 9.6%

Breeds named most often

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

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