This study evaluated the teratogenic defects of rat brain, eye, heart,
urogenital and skeletal systems after po administration of bone wax s
aline extract on days 9-13 of gestation. The experiment involved 5 gro
ups of 6 pregnant wistar rats each. The vehicle control group received
only 50.0 ml distilled water/kg; 3 test groups received 12.5, 25.0 or
50.0 ml of bone wax saline extract/kg; and the last group received 10
0 mg caffeine/kg as positive control. On the 21st day of gestation all
the animals were sacrificed under ether anesthesia and fetuses were c
ollected for routine teratological evaluations. There was no significa
nt change in maternal body weight or food consumption and no external,
visceral, skeletal and histological abnormalities in the vehicle cont
rol and bone wax dosed groups. Abnormalities were observed in the posi
tive control group.