Piloerection after Phenylpropanolamine (Proin) in dogs

119 reports to the FDA describe piloerection in dogs given Phenylpropanolamine. That is 2.9% of all reports for this medicine, compared with 0.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

119Reports
66%Marked serious
69%Recovered
0.8%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
77 94%
1–2 days
3 3.7%
3–7 days
0 0.0%
1–4 weeks
0 0.0%
Over a month
2 2.4%

How the animals did

Recovered
81 68%
Recovered with lasting effects
1 0.8%
Still unwell when reported
6 5.0%
Euthanised
1 0.8%
Not known
30 25%

Problems reported at the same time

Age of the animals

Under 1 year
9
1–3 years
34
4–7 years
30
8–11 years
33
12+ years
11

About this medicine

Phenylpropanolamine treats urinary incontinence.

Products with this ingredient include Proin. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Phenylpropanolamine cause piloerection in dogs?
119 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 the same day 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).

All reported side effects of Phenylpropanolamine in dogs · Medicines most reported with piloerection