Drug profile

The FDA adverse-event record for Ciprofloxacin

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

#552 of 2,679
by report volume (all drugs)
189
adverse-event reports
10.6%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Ciprofloxacin ranks #552 of 2679 by total reports (189) and #523 of 1130 by death-coded share (10.6%). 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)
#552
This drug, reports of 2679
#523
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. Ciprofloxacin has 189 reports now versus 188 in that prior snapshot: 1 more (0.5%).

Report change
+1
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 Ciprofloxacin changes

Signature read: 189 reports place Ciprofloxacin in the upper third of FDA AER volume (#552 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.
189
Total Reports
20
Deaths Reported
10.6%
Death-coded share of reports

Active Ingredients

Ciprofloxacin

Administration Routes

OralUnknownOphthalmicIntraocularIntravenousAuricular (Otic)

Species Affected

Dog 171
Cat 13
Human 2
Parrot 2
Horse 1

Most Affected Breeds

Retriever - Labrador 25
Shepherd Dog - German 10
Dog (unknown) 7
Pit Bull 7
Retriever - Golden 7
Boxer (German Boxer) 7
Unknown 6
Chihuahua 6
Rottweiler 6
Chow Chow 5

Most Reported Reactions

Lethargy (see also Central nervous system depression in 'Neurological') 32
Vomiting 31
Emesis 30
Other abnormal test result NOS 24
Diarrhoea 20
Lack of efficacy - NOS 17
Elevated alanine aminotransferase (ALT) 15
Elevated serum alkaline phosphatase (SAP) 14
Death by euthanasia 13
Anorexia 12
Weight loss 12
Not eating 10

Outcome Breakdown

Recovered/Normal
67 (35.8%)
Outcome Unknown
56 (29.9%)
Ongoing
36 (19.3%)
Euthanized
13 (7.0%)
Recovered with Sequela
8 (4.3%)
Died
7 (3.7%)

Ciprofloxacin: 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 Ciprofloxacin, 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 Ciprofloxacin (#552 of 2,679 by report volume); death-coded 10.6%. PlainBreed drug row · report volume stamp 189 · 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 →