title: Hypericin and its photodynamic action.
mesh_terms: D000818:Animals; D000873:Anthracenes; D001551:Benz(a)Anthracenes / Q000494:pharmacology*; D008027:Light; D010569:Perylene / Q000031:analogs & derivatives / Q000494:pharmacology*; D010777:Photochemistry; D010786:Photoreceptor Cells / Q000187:drug effects; D010787:Photosensitivity Disorders / Q000139:chemically induced; D010944:Plants / Q000528:radiation effects; D012867:Skin / Q000528:radiation effects
chemical_list: D000873:Anthracenes; D001551:Benz(a)Anthracenes; D010569:Perylene; C004965:hypericin