"PhotosensitizersSYNCI" . "Photosensitizing Agent"^^ . "Photosensitizing Agent"^^ . "photosensitizerPTNCI-GLOSSCDR0000045836" . "Chemical Viewed Functionally"^^ . "Drugs that are pharmacologically inactive but when exposed to ultraviolet radiation or sunlight are converted to their active metabolite to produce a beneficial reaction affecting the diseased tissue. These compounds can be administered topically or systemically and have been used therapeutically to treat psoriasis and various types of neoplasms.NCI" . "PhotosensitizerSYNCI" . "C1420"^^ . . "CHEBI:47868"^^ . "C0162713"^^ . . . "Photosensitizing AgentPTNCI" . "A drug used in photodynamic therapy. When absorbed by cancer cells and exposed to light, the drug becomes active and kills the cancer cells.NCI-GLOSS" . "Photosensitizing_Agent"^^ . "photosensitizing agentPTNCI-GLOSSCDR0000442862" .