title: A substitute for tobacco smoking.
mesh_terms: D000818:Animals; D002638:Chewing Gum; D003679:Deglutition; D004285:Dogs; D004339:Drug Compounding; D006801:Humans; D009538:Nicotine / Q000627:therapeutic use*; D010947:Plants, Toxic; D012907:Smoking / Q000188:drug therapy*; D014026:Nicotiana
chemical_list: D002638:Chewing Gum; D009538:Nicotine