Drug profile

The FDA adverse-event record for Phenylpropanolamine Hydrochloride

971 FDA reports name Phenylpropanolamine Hydrochloride, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#186 of 2,679
by report volume (all drugs)
971
adverse-event reports
3.5%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Phenylpropanolamine Hydrochloride ranks #186 of 2679 by total reports (971) and #883 of 1130 by death-coded share (3.5%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#186
This drug, reports of 2679
#883
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Phenylpropanolamine Hydrochloride has 971 reports now versus 935 in that prior snapshot: 36 more (3.9%).

Report change
+36
Death-coded reports
+2
Death-coded share
+0.1 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Phenylpropanolamine Hydrochloride changes

Signature read: 971 reports place Phenylpropanolamine Hydrochloride in the upper third of FDA AER volume (#186 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
971
Total Reports
34
Deaths Reported
3.5%
Death-coded share of reports

Active Ingredients

Phenylpropanolamine Hydrochloride

Administration Routes

OralUnknownOther

Species Affected

Dog 904
Unknown 61
Other 3
Human 2
Dormouse 1

Most Affected Breeds

Retriever - Labrador 124
Unknown 77
Shepherd Dog - German 63
Boxer (German Boxer) 40
Dog (unknown) 39
Crossbred Canine/dog 38
Pit Bull 33
Doberman Pinscher 26
Siberian Husky 24
Collie - Border 24

Most Reported Reactions

Lack of efficacy - NOS 310
Vomiting 160
Panting 109
Diarrhoea 91
Lethargy (see also Central nervous system depression in 'Neurological') 67
Emesis (multiple) 63
Lethargy (see also Central nervous system depression in Neurological) 53
Behavioural disorder NOS 49
Anorexia 44
Restlessness 42
Agitation 40
Decreased appetite 36

Outcome Breakdown

Outcome Unknown
423 (46.4%)
Recovered/Normal
375 (41.2%)
Ongoing
70 (7.7%)
Euthanized
19 (2.1%)
Died
15 (1.6%)
Recovered with Sequela
9 (1.0%)

Phenylpropanolamine Hydrochloride: low death-coded share in the FDA AER row

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.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Phenylpropanolamine Hydrochloride, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (3.5% here), distinct from the volume row.

What to do with this drug

  • Compare Phenylpropanolamine Hydrochloride's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

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

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Phenylpropanolamine Hydrochloride (#186 of 2,679 by report volume); death-coded 3.5%. PlainBreed drug row · report volume stamp 971 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →