title: Failure of promazine HCl to prevent the painful episodes in sickle cell anemia.
mesh_terms: D000755:Anemia, Sickle Cell / Q000150:complications / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D005260:Female; D005955:Glucosephosphate Dehydrogenase Deficiency / Q000150:complications; D006801:Humans; D008297:Male; D010146:Pain / Q000517:prevention & control; D010640:Phenothiazines / Q000627:therapeutic use; D010919:Placebos; D011395:Promazine / Q000627:therapeutic use*
chemical_list: D010640:Phenothiazines; D010919:Placebos; D011395:Promazine