Pentobarbital + Phenytoin side effects in cats
207 reports sent to the FDA between 1999 and 2026 involve Pentobarbital + Phenytoin in cats. The most reported problems were breathing problems, vocalising, potency, low. 41% were marked serious, and where it was recorded, signs eased after stopping the medicine in 50% of cases.
207Reports
41%Marked serious
93%Only medicine involved
1.4%Recovered
93%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 cat 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 (96 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Domestic Shorthair 49 reports
- Domestic 43 reports
- Domestic Mediumhair 7 reports
- Domestic Longhair 5 reports
- American Shorthair 3 reports
- Himalayan 3 reports
- Siamese 1 reports
- Persian 1 reports
- Scottish Fold Shorthair 1 reports
Other medicines for cats
Ketamine3,234 reports · 33% seriousButorphanol2,241 reports · 47% seriousIsoflurane2,031 reports · 43% seriousTiletamine + Zolazepam1,658 reports · 24% seriousMethylprednisolone1,607 reports · 41% seriousPropofol1,170 reports · 41% seriousAtipamezole1,037 reports · 35% seriousMidazolam748 reports · 48% serious