Vitamin B12 side effects in dogs
378 reports sent to the FDA between 2012 and 2026 involve Vitamin B12 in dogs. The most reported problems were loss of appetite, vomiting, lethargy. 66% were marked serious.
378Reports
66%Marked serious
0.0%Only medicine involved
17%Recovered
25%Died or euthanised
Sponsored
About this medicine
Type: medicine.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (302 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Labrador Retriever 31 reports
- German Shepherd Dog 28 reports
- Chihuahua 15 reports
- Golden Retriever 10 reports
- Yorkshire Terrier 10 reports
- Bull - American Pit Terrier 8 reports
- Siberian Husky 6 reports
- Miniature Dachshund 6 reports
- Boston Terrier 6 reports
- Rottweiler 6 reports
Other medicines for dogs
Melarsomine (Immiticide)22,672 reports · 41% seriousPolysulfated Glycosaminoglycan5,465 reports · 33% seriousDiphenhydramine4,724 reports · 48% seriousButorphanol4,441 reports · 55% seriousCefpodoxime4,055 reports · 36% seriousTramadol3,768 reports · 47% seriousFlorfenicol + Mometasone + Terbinafine3,542 reports · 60% seriousDesoxycorticosterone Pivalate3,337 reports · 38% serious