Chlorhexidine side effects in dogs

155 reports sent to the FDA between 1995 and 2026 involve Chlorhexidine in dogs. The most reported problems were vomiting, loss of appetite, skin rash or irritation. 46% were marked serious, and where it was recorded, signs eased after stopping the medicine in 0% of cases.

155Reports
46%Marked serious
2.6%Only medicine involved
16%Recovered
9.0%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

28 18%
Skin redness
18 12%
Lethargy
18 12%
Diarrhea
18 12%
Swelling
17 11%
Itching
16 10%
Hair loss
13 8.4%
Liver problems
12 7.7%
Weight loss
12 7.7%
Abnormal cytology
12 7.7%
Breathing problems
11 7.1%
Fever
10 6.5%
Pain
8 5.2%

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 prevent heartworm
2 1.3%
Didn't stop ticks
1 0.6%
Didn't stop mites
1 0.6%

How soon problems started

Same day
22 17%
1–2 days
18 14%
3–7 days
6 4.7%
1–4 weeks
28 22%
Over a month
53 42%

Time from the first dose to the first sign, where both dates were reported (127 reports).

How the animals did

Recovered
24 15%
Recovered with lasting effects
1 0.6%
Still unwell when reported
78 50%
Died
9 5.8%
Euthanised
5 3.2%
Not known
38 25%

Breeds named most often

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

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