garcimangosxanthone A and garcimangosxanthone B were isolated from the pericarp of Garcinia
mangostana exhibited cytotoxicity against human lung cancer (A549), human pulmonary carcinoma (LAC) and human hepatoma (A375) cell lines the tested cell lines with IC50 values ranging from 5.7-24.9 μM comparable with those of Doxorubicine (IC50=12.9-20.5 μM)