title: Amitriptyline and ephedrine in subarachnoid anaesthesia.
mesh_terms: D000368:Aged; D000639:Amitriptyline / Q000009:adverse effects*; D004347:Drug Interactions; D004809:Ephedrine / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007022:Hypotension / Q000139:chemically induced*
chemical_list: D000639:Amitriptyline; D004809:Ephedrine