Total Reports
25
FDA CVM filings
Cattle /
FDA CVM · 2025 release 25 reports on file
Brown Swiss - FDA Adverse Event Profile
Adverse-event records for Brown Swiss (Cattle) from the FDA Center for Veterinary Medicine.
Data updated June 2026
The record at a glance
Brown Swiss's FDA record: #339 most-reported cattle breed, 25 total reports, 8.0% death-coded (2 reports).
- #339
- most-reported cattle breed
- 8.0%
- death-coded report share
- 4
- Injection site swelling - top reaction
- 0.8 yr
- average age at report
Read report counts next to breed popularity: a bigger number often just means more owners and more vet visits.
Deaths Reported
2
of 25 reports
Death Rate
8.0%
death-coded share
Avg Age at Report
0.8 yr
228.1 kg avg weight
Death-Coded Outcome Share
Brown Swiss death-coded reports 8.0%
Cross-breed median
8.0% of 25 brown swiss reports involved a death outcome.
How to read this number
Read alongside breed popularity, veterinary access, and owner awareness, these shape how many events ever reach the FDA. The comparison line marks the cross-breed median death-coded share (about 4.8%) among breeds with 50 or more reports; values above it suggest higher reporting bias toward severe outcomes, not necessarily higher true mortality.
Average weight at time of report: 228.1 kg (503.0 lbs)
Top Reported Reactions
Injection site swelling 4
Residues in milk 3
Anaphylaxis 3
Localised pain NOS (see other 'SOCs' for specific pain) 3
Mastitis NOS 2
Most Referenced Drugs
Gamithromycin 5
Tulathromycin 4
Monensin Sodium 2
Ceftiofur Hydrochloride 2
Sometribove 2
Outcome Breakdown
Recovered/Normal
10 (50.0%)
Outcome Unknown
6 (30.0%)
Died
2 (10.0%)
Ongoing
2 (10.0%)
Gender Distribution
Female 22 (88.0%)
Unknown 2 (8.0%)
Male 1 (4.0%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 1 | |
| 2011 | 4 | |
| 2012 | 1 | |
| 2013 | 1 | |
| 2014 | 1 | |
| 2015 | 3 | |
| 2016 | 3 | |
| 2017 | 4 | |
| 2018 | 2 | |
| 2019 | 2 | |
| 2020 | 1 | |
| 2021 | 1 | |
| 2023 | 1 | |
Brown Swiss Pet Health Insights
Brown Swiss accounts for 25 FDA adverse event reports, ranking #339 by volume among cattle breeds, with 2 reports (8.0%) coded as a death outcome. Mean age at report: 0.8 years, average weight 228.1 kg (503.0 lbs).
Top reported signs: Injection site swelling (4), Residues in milk (3), Anaphylaxis (3). Most-referenced drug: Gamithromycin (5 reports), followed by Tulathromycin (4) and Monensin Sodium (2).
Outcome coding on 20 status-recorded reports is dominated by Recovered/Normal (50.0%). Annual submissions ranged 2,010-2,023 across 13 years on file.
Cattle Breeds With a Similar Report Volume
Frequently Asked Questions
How many FDA adverse event reports involve Brown Swiss? ▼
There are 25 adverse event reports involving Brown Swiss in the FDA database, with 2 reports involving death (8.0% death rate). Brown Swiss ranks #339 by report volume.
What are the most common adverse reactions reported for Brown Swiss? ▼
The most commonly reported adverse reactions for Brown Swiss are Injection site swelling (4 reports), Residues in milk (3 reports), Anaphylaxis (3 reports), Localised pain NOS (see other 'SOCs' for specific pain) (3 reports), Mastitis NOS (2 reports).
What drugs are most frequently associated with Brown Swiss adverse events? ▼
The drugs most frequently referenced in Brown Swiss adverse event reports are Gamithromycin (5 reports), Tulathromycin (4 reports), Monensin Sodium (2 reports), Ceftiofur Hydrochloride (2 reports), Sometribove (2 reports).
What is the average age of Brown Swiss in adverse event reports? ▼
The average age of Brown Swiss at the time of adverse event reports is 0.8 years, with an average weight of 228.1 kg (503.0 lbs).
Does a high number of adverse event reports mean Brown Swiss is unhealthy? ▼
No. FDA adverse event reports are voluntarily submitted and do not prove causation. Popular breeds with more veterinary visits tend to have more reports. The data reflects reporting patterns, not actual incidence rates. Always consult a veterinarian for health decisions.
Where does this Brown Swiss safety data come from? ▼
All data comes from the FDA Center for Veterinary Medicine's adverse event reporting system. Pet owners, veterinarians, and manufacturers voluntarily submit reports about adverse events potentially linked to animal drugs and other products.
Compare a breed's report volume against how common the breed is before drawing conclusions. See our methodology for how death rate and rankings are computed.
Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. Breed figures are computed directly from FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.