Hanrotter i intravenøs behandling i 9 uger viste vakuolisering i bitestiklernes duktale epitelceller, forøget bitestikkelvægt og reduceret antal sædceller (med 15%).
Male rats treated intravenously for 9 weeks showed vacuolation of the epididymal ductal epithelial cells, increased epididymis weights and reduced number of sperm cells (by 15%), however, in studies of 13 and 26 weeks duration these changes did not occur.