Pimobendan (Vetmedin) side effects in dogs
5,701 reports sent to the FDA between 2003 and 2026 involve Pimobendan in dogs. The most reported problems were vomiting, diarrhea, loss of appetite. 33% were marked serious, and where it was recorded, signs eased after stopping the medicine in 75% of cases.
About this medicine
Pimobendan treats heart failure and some heart disease.
Products with this ingredient include Vetmedin. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.
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 (3,524 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Chihuahua 520 reports
- King Charles Cavalier Spaniel 448 reports
- Shih Tzu 209 reports
- Yorkshire Terrier 186 reports
- Beagle 164 reports
- Maltese 158 reports
- German Pomeranian Spitz 144 reports
- Dachshund 126 reports
- Miniature Schnauzer 100 reports
- Labrador Retriever 94 reports