I 2- årige carcinogenicitetsstudier med hanmus sås stigninger i forekomst af lungetumorer ved doser ≥ 4 og ≥ 2 gange humandosis ved henholdsvis 0, 5 mg og 1 mg.
Two-year carcinogenicity studies: in male mice, increases in the incidences of lung tumours were observed at exposures ≥ 4 and ≥ 2 times that in humans at 0.5 mg and 1 mg respectively.