[Depressive effects of substance P on visceral pain in rats].
D000700:Analgesics / Q000494:pharmacology*; D000818:Animals; D008297:Male; D010146:Pain / Q000503:physiopathology*; D010487:Periaqueductal Gray / Q000187:drug effects; D051381:Rats; D011957:Receptors, Opioid / Q000502:physiology; D012684:Sensory Thresholds; D013373:Substance P / Q000494:pharmacology*
D000700:Analgesics; D011957:Receptors, Opioid; D013373:Substance P