title: Comparison of a combination nortriptyline-amitriptyline and placebo on gastrointestinal diseases in a controlled clinical study.
mesh_terms: D000293:Adolescent; D000328:Adult; D000639:Amitriptyline / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D004359:Drug Therapy, Combination; D004415:Dyspepsia / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009661:Nortriptyline / Q000008:administration & dosage*; D010437:Peptic Ulcer / Q000188:drug therapy*
chemical_list: D000639:Amitriptyline; D009661:Nortriptyline