Effect of isorhamnetin, cis-platin, carboplatin and their combinations on cell cycle phase distribution in A-549 cells using FACS analyzer. A-549 cells (lung cancer) cells were stained with propidium iodide after 48 h exposure to control (A), 25 μM Isorhamnetin (IR, B), 0.5 μM cisplatin (CP, C), 0.5 μM carboplatin (CB, D), IR+CP (E) and IR+CB (F). Data is representative of three independent experiments.