Delmopinol side effects in dogs

231 reports sent to the FDA between 2016 and 2026 involve Delmopinol in dogs. The most reported problems were vomiting, diarrhea, loose stool. 52% were marked serious, and where it was recorded, signs eased after stopping the medicine in 100% of cases.

231Reports
52%Marked serious
1.3%Only medicine involved
52%Recovered
2.6%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

96 42%
59 26%
Loss of appetite
19 8.2%
Lethargy
13 5.6%
Liver problems
11 4.8%
Tracheal obstruction
7 3.0%
Itching
7 3.0%
Behaviour change
7 3.0%
Seizures
6 2.6%
Gagging
5 2.2%
Kidney problems
5 2.2%
Unusual stool colour
5 2.2%
Wobbliness (ataxia)
5 2.2%

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
4 1.7%
Didn't stop worms
2 0.9%
Didn't work as expected
2 0.9%
Didn't stop ticks
1 0.4%

How soon problems started

Same day
25 18%
1–2 days
14 10%
3–7 days
9 6.6%
1–4 weeks
44 32%
Over a month
44 32%

Time from the first dose to the first sign, where both dates were reported (136 reports).

How the animals did

Recovered
119 52%
Still unwell when reported
7 3.0%
Died
2 0.9%
Euthanised
4 1.7%
Not known
99 43%

Breeds named most often

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

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