porfimer sodium

noun
por·​fi·​mer sodium | \ˈpȯr-fə-mər- \

Medical 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

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