Drug profile

The FDA adverse-event record for Phenylpropanolamine

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

803
adverse-event reports
14.9%
death-coded share
Dog
most-reported species
153
Vomiting - 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.
803
Total Reports
120
Deaths Reported
14.9%
Death Rate

Active Ingredients

Phenylpropanolamine

Administration Routes

OralUnknownTopicalParenteral

Species Affected

Dog 793
Human 6
Unknown 4

Most Affected Breeds

Retriever - Labrador 115
Crossbred Canine/dog 99
Shepherd Dog - German 45
Boxer (German Boxer) 33
Terrier - Yorkshire 21
Doberman Pinscher 21
Dog (unknown) 17
Terrier - Bull - American Pit 17
Mixed (Dog) 16
Collie - Border 15

Most Reported Reactions

Vomiting 153
Lethargy (see also Central nervous system depression in 'Neurological') 130
Accidental exposure 90
Death by euthanasia 82
Diarrhoea 79
Anorexia 73
Emesis 69
Agitation 65
Elevated alanine aminotransferase (ALT) 55
Panting 48
Ataxia 45
Urinary incontinence 43

Outcome Breakdown

Recovered/Normal
281 (36.0%)
Ongoing
216 (27.7%)
Outcome Unknown
158 (20.2%)
Euthanized
76 (9.7%)
Died
45 (5.8%)
Recovered with Sequela
5 (0.6%)

Phenylpropanolamine Adverse Event Insights

803 reports name Phenylpropanolamine; 120 recorded a death outcome (14.9% of reported events, not a population-level mortality rate). Active ingredient: Phenylpropanolamine. Administration routes: Oral, Unknown, Topical, Parenteral.

By species: Dog (793 reports), Human (6 reports), Unknown (4 reports). By breed: Retriever - Labrador (115), Crossbred Canine/dog (99), Shepherd Dog - German (45).

Leading clinical signs: Vomiting (153), Lethargy (see also Central nervous system depression in 'Neurological') (130), Accidental exposure (90), Death by euthanasia (82). Outcome, 781 coded reports: Recovered/Normal leads at 36.0%.

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.