Vomiting after Chlorpheniramine Maleate in dogs

The FDA has received 42 reports of vomiting in dogs after Chlorpheniramine Maleate. That is 48% of all reports for this medicine, compared with 28% across reports for all dog medicines, so it is reported unusually often with this medicine.

42Reports
14%Marked serious
90%Recovered
0.0%Died or euthanised
180 daysTypical onset
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How soon it started

Same day
4 14%
1–2 days
0 0.0%
3–7 days
0 0.0%
1–4 weeks
0 0.0%
Over a month
24 86%

How the animals did

Recovered
37 88%
Recovered with lasting effects
1 2.4%
Still unwell when reported
1 2.4%
Not known
3 7.1%

Problems reported at the same time

Loss of appetite
3 7.1%
Diarrhea
3 7.1%
Disorientation
2 4.8%
Liver problems
2 4.8%
Malaise
2 4.8%
Itching
1 2.4%
Breathing problems
1 2.4%

Age of the animals

Under 1 year
5
1–3 years
16
4–7 years
14
8–11 years
4
12+ years
2

About this medicine

Type: medicine.

Questions owners ask

Can Chlorpheniramine Maleate cause vomiting in dogs?
42 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 180 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).

Vomiting with similar medicines

All reported side effects of Chlorpheniramine Maleate in dogs · Medicines most reported with vomiting