I am currently undertaking my PhD on drug combination against nasopharyngeal carcinoma, NPC. I am screening various targeted therapies and chemotherapies with aim to come out with the best synergism activity. I have found possible drug combination that synergized but what about drugs that antagonized each other? I would like to know if antagonized combinations are worth to be looked into? It may help to further understand the mechanisms of NPC other than just focusing solely on synergism.