The present invention discloses a use of pharmaceutical composition for manufacturing drug of treating gastric cancer. The pharmaceutical composition includes an effective amount of an exemestane. The pharmaceutical composition can effectively inhibit the survival of gastric cancer cells and has an in vivo inhibition of gastric cancer tumor.本發明提供一種醫藥組合物用於製備胃癌藥物的用途。前述醫藥組合物至少包含一有效劑量之諾曼癌素，藉此可有效抑制胃癌細胞之細胞存活，並對胃癌腫瘤具有體內抑制效果。
