A pharmaceutical composition to suppress the multiplication of cells for the treatment of cancer using nanoemulsions of Rosuvastatin Calcium (RST) and Ketorolac Tromethamine (KT) along with oil, a surfactant, a co-surfactant and water added in drops while continuously stirring the preparation is disclosed. The method of preparing the composition comprises mixing of the composition by using a high speed homogenizer followed by an untrasonication. After preparing the composition the undissolved drug is removed by filtration using a filtering membrane. The concentration of drug in the filtrate was measured using a HPLC and the prepared emulsions were diluted by adding a suitable quantity of water to determine anticancer activity. The pharmaceutical composition is effective in suppressing the multiplication of cells for treating cancer cells without effecting the cells and organs and improving the bioavailability of drugs.