title: Biological activity and enzymic degradation of substance P analogs: implications for studies of the substance P receptor.
mesh_terms: D000818:Animals; D001681:Biological Assay; D001921:Brain / Q000378:metabolism*; D006207:Half-Life; D007082:Ileum / Q000187:drug effects; D007700:Kinetics; D008297:Male; D051381:Rats; D011955:Receptors, Drug / Q000378:metabolism*; D013329:Structure-Activity Relationship; D013373:Substance P / Q000031:analogs & derivatives* / Q000378:metabolism / Q000494:pharmacology
chemical_list: D011955:Receptors, Drug; D013373:Substance P