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Breed profile · FDA CVM July 2026 extract

Norwegian Forest adverse-event record

Adverse-event filings for Norwegian Forest (Cat) in the FDA Center for Veterinary Medicine openFDA extract. Browse cat breeds, reactions, and outcomes below.

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#186 of 510
by report volume (all breeds)
193
FDA CVM reports on file
5.7%
death-coded share of reports
#108 of 275
by death-coded share (≥50 reports)

How the 193 reports break down

By recorded gender -- every report on file for Norwegian Forest, no filtering.

Annual report volume

Annual adverse-event report trend Yearly FDA CVM adverse-event report counts for this breed. 28 21 14 7 0 2019 2020 2021 2022 2023 2024 2025 2026 Reports filed Death-coded reports
Annual report volume for Norwegian Forest drawn from FDA CVM filings.

Data updated September 2026

The verdict

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Norwegian Forest ranks #186 of 510 by total reports (193) and #108 of 275 by death-coded share (5.7%). National dual: Retriever - Labrador is #1 of 510 by total adverse-event reports (93,675) at death-coded-share rank 195 of 275 breeds with at least 50 reports (3.7%); separately, Atlantic Salmon (Salmo salar) is #1 highest death-coded share at 99.0% (report rank #233).

93,675
Retriever - Labrador reports (#1)
99.0%
Atlantic Salmon (Salmo salar) death share (#1)
#186
This breed, reports of 510
#108
This breed, death share of 275

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. Norwegian Forest has 193 reports now versus 190 in that prior snapshot: 3 more (1.6%).

Report change
+3
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 Norwegian Forest changes

Total Reports

193

Above-median volume

Deaths Reported

11

of 193 reports

Death-coded share of reports

5.7%

Above-median death-coded share

Avg Age at Report

8.9 yr

5.8 kg avg weight

Death-Coded Outcome Share

Norwegian Forest death-coded reports 5.7%
Cross-breed median

5.7% of 193 norwegian forest 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 (4.8%) among breeds with 50 or more reports; values above it suggest higher reporting bias toward severe outcomes, not necessarily higher true mortality.

Where Norwegian Forest's death-coded share sits among indexed breeds

Death-coded share of FDA CVM reports, breeds with ≥50 reports (July 2026 extract)

6% 61st percentile Higher share than 61% of 275 indexed breeds

5%–10%: 1 indexed breeds (0%). This entry sits in this band. 20%–25%: 2 indexed breeds (1%). Above this entry. 25%–30%: 3 indexed breeds (1%). Above this entry. 30%–35%: 4 indexed breeds (1%). Above this entry. 35%–40%: 5 indexed breeds (2%). Above this entry. 40%–45%: 6 indexed breeds (2%). Above this entry. 45%–50%: 3 indexed breeds (1%). Above this entry. 50%–55%: 7 indexed breeds (3%). Above this entry. 55%–60%: 7 indexed breeds (3%). Above this entry. 60%–65%: 21 indexed breeds (8%). Above this entry. 65%–70%: 11 indexed breeds (4%). Above this entry. 70%–75%: 15 indexed breeds (5%). Above this entry. 75%–80%: 13 indexed breeds (5%). Above this entry. 80%–85%: 11 indexed breeds (4%). Above this entry. 85%–90%: 12 indexed breeds (4%). Above this entry. 90%–95%: 12 indexed breeds (4%). Above this entry. 95%–100%: 142 indexed breeds (52%). Above this entry. Norwegian Forest 5% 100% every breed with ≥50 FDA reports, bucketed by value

Each bar is a band; taller bars hold more indexed breeds. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FDA Center for Veterinary Medicine, openFDA adverse event extract (PlainBreed) · July 2026 extract

This histogram uses the same ≥50-report cohort as the highest death-coded share ranking. A higher share means more of this breed's reported events were death-coded, not a mortality rate for living animals.

Average weight at time of report: 5.8 kg (12.8 lbs)

Top Reported Reactions

Vomiting 33
Lethargy (see also Central nervous system depression in 'Neurological') 27
Diarrhoea 19
Anorexia 17
Lack of efficacy (ectoparasite) - flea 15
Decreased appetite 14
Weight loss 13
Lack of efficacy - NOS 10

Most Referenced Drugs

Frunevetmab 21
Selamectin 18
Spinosad 18
Nitenpyram 15
Cefovecin 14
Imidacloprid + Moxidectin 13
Fluralaner Spot-On Solution 13
Selamectin;Sarolaner 12

Outcome Breakdown

Recovered/Normal
59 (32.2%)
Ongoing
58 (31.7%)
Outcome Unknown
53 (29.0%)
Died
7 (3.8%)
Euthanized
4 (2.2%)
Recovered with Sequela
2 (1.1%)

Gender Distribution

Male 123 (63.7%)
Female 65 (33.7%)
Unknown 4 (2.1%)
Mixed 1 (0.5%)

Reports by Year

Year Reports Trend
2010 8
2011 4
2012 11
2013 7
2014 6
2015 8
2016 11
2017 14
2018 11
2019 14
2020 13
2021 9
2022 13
2023 28
2024 18
2025 16
2026 2

Norwegian Forest FDA adverse-event insights

Signature read: mid-pack filing volume at 193 (#186 of 510) is the scale stamp on Norwegian Forest. According to FDA CVM filings indexed on PlainBreed as of July 2026 extract, Norwegian Forest sits at #186 of 510 by report volume among all breeds and #20 of 55 among cat breeds, with 193 reports and 11 (5.7%) death-coded. On death-coded share among breeds with ≥50 reports, it ranks #108 of 275. Mean age at report: 8.9 years, average weight 5.8 kg (12.8 lbs).

Top reported signs: Vomiting (33), Lethargy (see also Central nervous system depression in 'Neurological') (27), Diarrhoea (19). Most-referenced drug: Frunevetmab (21 reports), followed by Selamectin (18) and Spinosad (18).

Outcome coding on 183 status-recorded reports is dominated by Recovered/Normal (32.2%). Annual submissions ranged 2-2,026 across 17 years on file.

Cat Breeds With a Similar Report Volume

Showing 6 of 54 cat breeds in our dataset, ranked by closest report volume.

Abyssinian cat
201 reports · 9.5% death-coded
Sphynx
184 reports · 13.6% death-coded
American Curl Shorthair
228 reports · 3.5% death-coded
Burmese
158 reports · 11.4% death-coded
Siberian
118 reports · 4.2% death-coded
Tonkinese
118 reports · 11.9% death-coded

Nationwide breeds with similar profiles

Two openFDA-derived peer sets for Norwegian Forest, both outside the Cat family so the neighborhoods are not species containment (the similar-volume list above stays within species).

Similar death-coded share

Nearest other-species breeds with ≥50 reports (5.7% death-coded here).

Doberman Pinscher 5.7% · Dog Mixed (Dog) 5.7% · Dog Affenpinscher 5.7% · Dog Samoyed 5.7% · Dog

What to do with this cat

A report does not prove a drug caused the reaction, and popular breeds simply generate more reports.

Frequently Asked Questions

How many FDA adverse event reports involve Norwegian Forest? ▼
There are 193 adverse event reports involving Norwegian Forest in the FDA database, of which 11 were death-coded (5.7% of those reports). That is a share of REPORTED events, not a mortality rate for the breed: adverse events reach the FDA when something goes wrong, so the denominator is reports, never the population of animals. According to the same FDA CVM extract, Norwegian Forest ranks #186 of 510 by report volume among all breeds PlainBreed indexes (#20 of 55 among cat breeds).
Where does Norwegian Forest sit among other breeds in PlainBreed's corpus? ▼
According to FDA CVM report volume, Norwegian Forest is #186 of 510 breeds indexed on PlainBreed (same ordering as the most-reported-breeds ranking). Inside Cat, it is #20 of 55. Among breeds with at least 50 reports, its death-coded share ranks #108 of 275 (same cohort as highest-death-rate). These are placement ranks in the reporting corpus, not clinical risk scores.
What are the most common adverse reactions reported for Norwegian Forest? ▼
The most commonly reported adverse reactions for Norwegian Forest are Vomiting (33 reports), Lethargy (see also Central nervous system depression in 'Neurological') (27 reports), Diarrhoea (19 reports), Anorexia (17 reports), Lack of efficacy (ectoparasite) - flea (15 reports).
What drugs are most frequently associated with Norwegian Forest adverse events? ▼
The drugs most frequently referenced in Norwegian Forest adverse event reports are Frunevetmab (21 reports), Selamectin (18 reports), Spinosad (18 reports), Nitenpyram (15 reports), Cefovecin (14 reports).
What is the average age of Norwegian Forest in adverse event reports? ▼
The average age of Norwegian Forest at the time of adverse event reports is 8.9 years, with an average weight of 5.8 kg (12.8 lbs).

Compare a breed's report volume against how common the breed is before drawing conclusions. See our methodology for how the death-coded share and rankings are computed, or read breed-specific reporting patterns and FDA CVM reporting.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Norwegian Forest (Cat), extract as of July 2026 extract. 193 reports · 11 death-coded (5.7% of reports, not a mortality rate) · #186 of 510 by volume.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →