title: Relief of fain in labour. A controlled double-blind trial comparing pethidine and various phenothiazine derivatives.
mesh_terms: D000700:Analgesics / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives / Q000008:administration & dosage*; D007273:Injections, Intramuscular; D007743:Labor, Obstetric; D008614:Meperidine / Q000008:administration & dosage*; D010146:Pain / Q000188:drug therapy; D010640:Phenothiazines / Q000008:administration & dosage*; D011247:Pregnancy; D011395:Promazine / Q000008:administration & dosage*; D011398:Promethazine / Q000008:administration & dosage*
chemical_list: D000700:Analgesics; D006993:Hypnotics and Sedatives; D010640:Phenothiazines; D008614:Meperidine; D011398:Promethazine; D011395:Promazine