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- The effect produced when certain substances are exposed to light. In cancer treatment, some drugs become active when exposed to light and are then able to kill tumor cells.
National Cancer Institute - Cite This Source - This Definition
- arsenic, dihematoporphyrin ether, hematoporphyrin derivative, HPPH, LED therapy, light-emitting diode therapy, methyl-5-aminolevulinate, photodynamic therapy, Photofrin, photosensitizer, photosensitizing agent, porcine, porfimer sodium, psoralen and ultraviolet A therapy, PUVA therapy, silicon phthalocyanine 4, talaporfin sodium