title: Treatment of Helicobacter pylori infection.
abstract: Antibiotic resistance has resulted in unsatisfactory eradication results with dual and now triple therapy in many countries. Newer antibiotics and changes in dosing and duration of therapy may overcome resistant strains but may only provide limited improvement in eradication rates. Sequential therapy with amoxicillin (1 g twice a day) and a proton pump inhibitor (PPI) (twice a day) given for 5 days followed by a PPI plus clarithromycin (500 mg twice a day) and tinidazole (500 mg twice a day) for 5 days is now a first-line therapy for Helicobacter pylori in some countries. Standard triple therapy is effective in regions where clarithromycin resistance is low. Levofloxacin based triple therapy is an effective alternative to quadruple therapy in second-line treatment. Adjuvant therapy may reduce side-effects and improve compliance. Molecular and genomic research on H. pylori may result in the development of targeted antibiotic therapy; however, more research is required in this field. Further research in vaccination is also necessary before this can become an option in clinical practice.
authors.affiliation: Department of Gastroenterology, Adelaide and Meath Hospital incorporating National Children's Hospital Tallaght, Trinity College Dublin, Ireland. eganbr@tcd.ie
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Egan
authors.forename: Leonardo
authors.initials: L
authors.lastname: Marzio
authors.forename: Humphrey
authors.initials: H
authors.lastname: O'Connor
authors.forename: Colm
authors.initials: C
authors.lastname: O'Morain
mesh_terms: D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D017024:Chemotherapy, Adjuvant; D004334:Drug Administration Schedule; D024881:Drug Resistance, Bacterial; D004359:Drug Therapy, Combination; D016481:Helicobacter Infections / Q000188:drug therapy*; D016480:Helicobacter pylori / Q000187:drug effects*; D006801:Humans; D054328:Proton Pump Inhibitors / Q000008:administration & dosage; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents; D054328:Proton Pump Inhibitors