The aim of this study was to establish the main classes of drugs incriminated in the occurrence of chronic gastritis as well as the evaluation of the main therapeutic protocols. 315 medical letters of patients diagnosed with chronic gastritis registered in the database of an Integrative Medicine centre in Tîrgu-Mureș between 2012-2017 were analised. The frequency of gastritis was comparative, as prevalence, among the studied age groups, the causative factors varying among them. The incriminated medication in the occurrence of gastritis was represented by substances such as non-steroidal anti-inflammatory drugs, levothyroxine, coumarin anticoagulants, modern anticoagulants or platelet antiaggregant drugs. Proton pump inhibitors are most commonly used for the treatment of chronic gastritis, but also prokinetic, antispasmodic or probiotic are frequently used. Because several pathologies, including environmental and dietary factors are incriminated, the correct treatment implies not only prescription appropriate medication but also lifestyle changes.