phenobarbitone at a concentration of 500 mg/l in drinking fluid of gerbils during pregnancy ( 60 mg/kg ) and lactation ( 136 mg/kg ) markedly reduced the proportion of animals bearing litters , decreased pup weights at birth and during later life and delayed development of the self-righting reflex , auditory startle reaction , eye opening and full fur coverage .
C0031412
phenobarbitone
C0032961
pregnancy