The reseach has been done about effect of pure asiaticoside compound (triterpen) from pegagan (Centella asiatica (L) Urban) to cognitive ability (learning and memorizing) and toxicity effect in female mice {mus musculus) by oral. The data on the process of learning and memorizing were obtained through a passive avoidance test. The data were analyzed using ANOVA which were then followed by BNT t…