For kaniner udviste et studie en lidt større forekomst af kardiovaskulære anormaliteter hos fostre i behandlingsgrupperne end i kontrolgruppen, mens et andet studie viste en lavere forekomst end i kontrolgruppen.
In rabbits, one study showed a slightly higher incidence of fetal cardiovascular anomalies in the treatment groups than in the control group, while another study showed a lower incidence than in controls.