title: Letter: Replacement drug for edrophonium bromide.
mesh_terms: D000166:Acridines / Q000627:therapeutic use*; D000328:Adult; D002800:Cholinesterase Inhibitors / Q000627:therapeutic use*; D004491:Edrophonium / Q000031:analogs & derivatives*; D005260:Female; D006801:Humans; D009157:Myasthenia Gravis / Q000188:drug therapy*; D000644:Quaternary Ammonium Compounds / Q000627:therapeutic use*; D013619:Tacrine / Q000627:therapeutic use*
chemical_list: D000166:Acridines; D002800:Cholinesterase Inhibitors; D000644:Quaternary Ammonium Compounds; D013619:Tacrine; D004491:Edrophonium