Drug profile

The FDA adverse-event record for Phenylpropanolamine (Unknown)

113 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Phenylpropanolamine (Unknown). See the species affected, top reactions, and outcomes below.

113
adverse-event reports
3.5%
death-coded share
Dog
most-reported species
29
Emesis - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
113
Total Reports
4
Deaths Reported
3.5%
Death Rate

Active Ingredients

Phenylpropanolamine (Unknown)

Administration Routes

UnknownOral

Species Affected

Dog 113

Most Affected Breeds

Retriever - Labrador 18
Crossbred Canine/dog 5
Shepherd Dog - Australian 5
Doberman Pinscher 5
Shepherd Dog - German 4
Spaniel - Cocker American 3
Boxer (German Boxer) 3
Pit Bull 3
Terrier - Yorkshire 3
Weimaraner 3

Most Reported Reactions

Emesis 29
Vomiting 25
Diarrhoea 12
Lack of efficacy - NOS 7
Not eating 7
Other abnormal test result NOS 7
Lethargy (see also Central nervous system depression in 'Neurological') 6
Lack of efficacy (endoparasite) - hookworm 6
Behavioural disorder NOS 5
Elevated serum alkaline phosphatase (SAP) 5
Urinary incontinence 5
Death by euthanasia 4

Outcome Breakdown

Recovered/Normal
57 (50.4%)
Outcome Unknown
28 (24.8%)
Ongoing
21 (18.6%)
Euthanized
4 (3.5%)
Recovered with Sequela
3 (2.7%)

Phenylpropanolamine (Unknown) Adverse Event Insights

113 reports name Phenylpropanolamine (Unknown); 4 recorded a death outcome (3.5% of reported events, not a population-level mortality rate). Active ingredient: Phenylpropanolamine (Unknown). Administration routes: Unknown, Oral.

By species: Dog (113 reports). By breed: Retriever - Labrador (18), Crossbred Canine/dog (5), Shepherd Dog - Australian (5).

Leading clinical signs: Emesis (29), Vomiting (25), Diarrhoea (12), Lack of efficacy - NOS (7). Outcome, 113 coded reports: Recovered/Normal leads at 50.4%.

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.