Drug profile

The FDA adverse-event record for Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric)

29 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric). Species, reactions, and outcomes follow.

#1484 of 2,679
by report volume (all drugs)
29
adverse-event reports
27.6%
death-coded share
Cattle
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric) ranks #1463 of 2679 by total reports (29). Death-coded-share rank requires at least 50 reports. 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)
#1463
This drug, reports of 2679

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. Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric) has 29 reports now versus 29 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 Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric) changes

Signature read: Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric)'s 27.6% death-coded share is among the highest in the openFDA drug corpus.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
29
Total Reports
8
Deaths Reported
27.6%
Death-coded share of reports

Active Ingredients

Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric)

Administration Routes

UnknownSubcutaneousIntramuscularOphthalmic

Species Affected

Cattle 16
Unknown 6
Dog 5
Sheep 1
Goat 1

Most Affected Breeds

Cattle (other) 10
Unknown 6
Dog (unknown) 2
Aberdeen Angus 2
Crossbred Bovine/Cattle 1
Terrier - Jack Russell 1
Brangus 1
Holstein-Friesian also known as Holstein 1
Simbrah 1
Sheep (unknown) 1

Most Reported Reactions

Lack of efficacy (bacteria) - NOS 10
Uncoded sign 6
Death 4
Color, Abnormal 3
Lack of efficacy - NOS 2
Inappropriate packaging or design 2
Foam in the mouth 2
Seizure NOS 2
Injection site inflammation 2
Injection site swelling 2
Injection site pain 2
Digestive tract disorder NOS 2

Outcome Breakdown

Outcome Unknown
14 (48.3%)
Died
8 (27.6%)
Ongoing
5 (17.2%)
Recovered/Normal
2 (6.9%)

Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric): high 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.

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 Oxytetracycline Dihydrate ( Oxytetracycline Amphoteric) (#1484 of 2,679 by report volume); death-coded 27.6%. PlainBreed drug row · death-coded share stamp 27.6% · 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 →