title: Intrathecal morphine inhibits substance P release from mammalian spinal cord in vivo.
mesh_terms: D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D002211:Capsaicin / Q000494:pharmacology; D002415:Cats; D007278:Injections, Spinal; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009619:Nociceptors / Q000502:physiology; D010146:Pain / Q000503:physiopathology; D011188:Potassium / Q000494:pharmacology; D051381:Rats; D013116:Spinal Cord / Q000378:metabolism*; D013373:Substance P / Q000378:metabolism*
chemical_list: D013373:Substance P; D009020:Morphine; D011188:Potassium; D002211:Capsaicin