Four inseminated Wistar rats (two rats in the 100 mg/kg dose group had implantation sites; i.e., were pregnant) were treated daily from day 6 to day 19 p.c. by gavage, with 100 or 1000 mg/kg body weight/day of AND 7370 in 0.5% carboxymethylcellulose in demineralized water. The fetuses were delivered by cesarean section on day 20 p.c. Investigations were performed on the general tolerance of the test compound by the females as well as on its effects on intrauterine development (pregnancy rate, number of fetuses and resorptions, external findings in the fetuses, fetal weight, fetal skeletal malformations, and fetal skeletal variations (wavy ribs only)).