Lactulose side effects in cats
203 reports sent to the FDA between 2003 and 2026 involve Lactulose in cats. The most reported problems were loss of appetite, lethargy, vomiting. 48% were marked serious, and where it was recorded, signs eased after stopping the medicine in 100% of cases.
203Reports
48%Marked serious
2.0%Only medicine involved
21%Recovered
16%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 (158 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Domestic Shorthair 128 reports
- Domestic Longhair 14 reports
- Domestic Mediumhair 12 reports
- Cat (other) 8 reports
- Domestic 4 reports
- Scottish Fold Longhair 4 reports
- Himalayan 3 reports
- American Curl Shorthair 3 reports
- Persian 3 reports
- Scottish Fold Shorthair 2 reports
Other medicines for cats
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