I orale carcinogenicitetsforsøg med risperidon til rotter og mus blev der observeret stigninger i hypofyseadenomer (mus), endokrine pankreasadenomer (rotter) og brystkirteladenomer (begge arter).
In oral carcinogenicity studies of risperidone in rats and mice, increases in pituitary gland adenomas (mouse), endocrine pancreas adenomas (rat), and mammary gland adenomas (both species) were seen.