title: Melatonin is available over the counter.
authors.forename: D
authors.initials: D
authors.lastname: Jarvis
mesh_terms: D006801:Humans; D008550:Melatonin / Q000600:supply & distribution*; D004366:Nonprescription Drugs / Q000600:supply & distribution*; D006113:United Kingdom
chemical_list: D004366:Nonprescription Drugs; D008550:Melatonin