title: [Butorphanol. A new synthetic analgesic].
mesh_terms: D000700:Analgesics; D000768:Anesthesia, General; D002077:Butorphanol / Q000009:adverse effects / Q000627:therapeutic use; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007044:Hysterectomy; D009019:Morphinans / Q000627:therapeutic use; D010149:Postoperative Pain / Q000188:drug therapy*
chemical_list: D000700:Analgesics; D009019:Morphinans; D002077:Butorphanol
vernacular_title: Butorfanol. Un nuevo analgésico sintético.