Diarrhea become one of the main health problems in Indonesia that requires serious treatment. The villagers prefer to use herbal treatment to cure diarrhea, one of them is rambutan peel. The aim of this study was to reveal anti diarrheal effectiveness of rambutan peel’s (Nephelium lappaceum L.) ethanol extract. This research was an experimental test with the sample divided into 5 groups : neg…