porfimer sodium

por·fi·mer sodium

noun \ˈpȯr-fə-mər-\

Definition of PORFIMER SODIUM

: a photosensitizing mixture of porphyrin oligomers that is administered by intravenous injection to induce photosensitivity in tumor cells (as of esophageal carcinoma) before subjecting them to laser light in photodynamic therapy—see photofrin