Central action of spinal opiates.
D000818:Animals; D006801:Humans; D009294:Narcotics / Q000008:administration & dosage*; D051381:Rats; D012131:Respiratory Insufficiency / Q000139:chemically induced*; D013129:Spinal Puncture; D014839:Vomiting / Q000139:chemically induced*
D009294:Narcotics