Reaction profile

The FDA adverse-event record for abnormal spermatozoa nos

30 FDA reports name abnormal spermatozoa nos, a lower-volume reaction in the CVM extract (VeDDRA 763). Plate stamps and neighbourhood peers follow.

#1990 of 2,481
by report volume (all reactions)
30
reports citing this reaction
0.0%
death-coded share
Dog
most-affected species

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. Abnormal spermatozoa NOS has 30 reports now versus 30 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 Abnormal spermatozoa NOS changes

FDA AER · VeDDRA plate

Code 763 VOL-TRACE

VOL-TRACE · DEATH-RARE · LOWER-Q · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-TRACE 30 reports
  • DEATH-RARE 0.0%
  • LOWER-Q #1990/2481
  • PHOTO-FINISH Atelectasis
  • SPECIES-DOG Dog · 22
  • DRUG-LEAD Fluralaner Chew T… · 7
  • DESK-WIDE 19 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Atelectasis (±0 reports)

Instrument codes from this reaction’s FDA CVM adverse-event extract: volume band, death-coded share, corpus rank, photo-finish peer, lead species, lead drug, breed desk, and book completeness. Not a clinical diagnosis.

Lower-volume neighbourhood around Abnormal spermatozoa NOS

Lower-third volume poles plus nearest peers, not a full reaction corpus board reprint.

Vomiting · highest174348Abnormal spermatozoa… · this…30Atelectasis · near30Bone marrow suppressi… · near30Chronic kidney disease · near30Congenital musculo-sk… · near30Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Abnormal spermatozoa NOS

Abnormal spermatozoa NOS: low death-coded share in the FDA AER plate

Signature read: Abnormal spermatozoa NOS's 0.0% death-coded share is among the lowest in the openFDA reaction corpus. Report volume is lower-third scale: 30 named reports in the openFDA extract. Death-coded share is lower-third: 0 of 30 reports (0.0% of named reports). Nearest volume peer: Atelectasis (±0 reports). Lead species Dog (22). Lead co-reported drug Fluralaner Chew Tablets (7).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Fluralaner Chew Tablets appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 22
Cattle 6
Horse 2

Breeds Most Affected

Retriever - Labrador 6
Samoyed 5
Terrier - Tibetan 2
Retriever - Golden 2
Ridgeback - Rhodesian 1
Horse (unknown) 1
Cattle (unknown) 1
Simmental 1
Aberdeen Angus 1
Akita 1

Associated Drugs

Fluralaner Chew Tablets 7
Moxidectin 3
Afoxolaner 3
Clomipramine 2
Melengestrol Acetate 2
Spinosad, Milbemycin 1
Firocoxib 1
Ivermectin Pour-On Cattle 1
Selamectin 1
Milbemycin Oxime + Spinosad 1
Eprinomectin 5% Injection 1
Levothyroxine 1
Afoxolaner 136 Mg Chewable Tablets 1
Flunixin Megl Topical Solution 1
Gamithromycin 1
Oxytetracycline Dihydrate 1
Sarolaner 1
Milbemycin/Praziquantel 1
Fluralaner 13.64% 12-Week Chew 1
Ciclesonide 1

What to do with this reaction

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 Abnormal spermatozoa NOS (#1990 of 2,481 by report volume); death-coded 0.0%. PlainBreed reaction plate · death-coded share stamp 0.0% · 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 →