Drug profile

The FDA adverse-event record for Pepcid

63 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Pepcid. Species, reactions, and outcomes follow.

#992 of 2,679
by report volume (all drugs)
63
adverse-event reports
11.1%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Pepcid ranks #985 of 2679 by total reports (63) and #499 of 1130 by death-coded share (11.1%). 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)
#985
This drug, reports of 2679
#499
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. Pepcid has 63 reports now versus 63 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
Death-coded share
+0.0 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 Pepcid changes

Signature read: report volume at 63 is the most distinctive stamp on Pepcid's FDA AER row.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
63
Total Reports
7
Deaths Reported
11.1%
Death-coded share of reports

Active Ingredients

Pepcid

Administration Routes

UnknownOral

Species Affected

Dog 60
Cat 3

Most Affected Breeds

Retriever - Labrador 6
Terrier - Bull - American Pit 5
Crossbred Canine/dog 4
Bulldog - French 4
Chihuahua 3
Terrier (unspecified) 3
Retriever - Golden 3
Shepherd (unspecified) 2
Pit Bull 2
Terrier - Boston 2

Most Reported Reactions

Diarrhoea 13
Lethargy (see also Central nervous system depression in Neurological) 11
Vomiting 8
Elevated blood urea nitrogen (BUN) 6
Seizure NOS 6
Twitching 6
Death by euthanasia 6
Decreased appetite 6
Ataxia 5
Emesis (multiple) 5
Walking difficulty 5
Anorexia 4

Outcome Breakdown

Ongoing
32 (50.8%)
Recovered/Normal
16 (25.4%)
Outcome Unknown
8 (12.7%)
Euthanized
6 (9.5%)
Died
1 (1.6%)

Pepcid Adverse Event Insights

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.

Nationwide drugs with similar profiles

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

What to do with this drug

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 Pepcid (#992 of 2,679 by report volume); death-coded 11.1%. PlainBreed drug row · report volume stamp 63 · 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 →