Butorphanol side effects in cats
2,241 reports sent to the FDA between 1995 and 2026 involve Butorphanol in cats. The most reported problems were loss of appetite, lethargy, fever. 47% were marked serious, and where it was recorded, signs eased after stopping the medicine in 38% of cases.
2,241Reports
47%Marked serious
21%Only medicine involved
30%Recovered
24%Died or euthanised
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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 (1,722 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Domestic Shorthair 992 reports
- Domestic 293 reports
- Domestic Longhair 158 reports
- Domestic Mediumhair 110 reports
- Cat (other) 103 reports
- Siamese 39 reports
- Maine Coon 32 reports
- Ragdoll 27 reports
- Persian 24 reports
- Himalayan 11 reports
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