dihematoporphyrin etherListen to pronunciation(dy-HEE-muh-toh-POR-fih-rin EE-ther)Used in photodynamic therapy, a drug that is absorbed by tumor cells; when exposed to light, it becomes active and kills the cancer cells.Search NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#