Drug profile

The FDA adverse-event record for Dapp

356 FDA reports name Dapp, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#377 of 2,679
by report volume (all drugs)
356
adverse-event reports
9.8%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Dapp ranks #377 of 2679 by total reports (356) and #553 of 1130 by death-coded share (9.8%). 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)
#377
This drug, reports of 2679
#553
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. Dapp has 356 reports now versus 352 in that prior snapshot: 4 more (1.1%).

Report change
+4
Death-coded reports
+0
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 Dapp changes

Signature read: 356 reports place Dapp in the upper third of FDA AER volume (#377 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.
356
Total Reports
35
Deaths Reported
9.8%
Death-coded share of reports

Active Ingredients

Dapp

Administration Routes

UnknownSubcutaneousNasal

Species Affected

Dog 352
Cat 3
Other 1

Most Affected Breeds

Retriever - Labrador 35
Terrier - Bull - American Pit 31
Terrier - Yorkshire 22
Chihuahua 19
Crossbred Canine/dog 16
Boxer (German Boxer) 14
Shih Tzu 13
Retriever - Golden 11
Shepherd Dog - German 10
Schnauzer - Miniature 10

Most Reported Reactions

Vomiting 113
Lethargy (see also Central nervous system depression in 'Neurological') 63
Facial swelling (see also 'Skin') 52
Diarrhoea 50
Anaphylaxis 44
Hives (see also 'Skin') 43
Seizure NOS 31
Fever 29
Anorexia 26
Emesis 23
Death 22
Pale mucous membrane 22

Outcome Breakdown

Ongoing
178 (49.9%)
Recovered/Normal
120 (33.6%)
Outcome Unknown
24 (6.7%)
Died
23 (6.4%)
Euthanized
12 (3.4%)

Dapp: high report volume 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 Dapp, 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 Dapp (#377 of 2,679 by report volume); death-coded 9.8%. PlainBreed drug row · report volume stamp 356 · 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 →