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Considering that Helicobacter pylori, a bacterium able to colonize the upper gastrointestinal tract and cause mucosal injury, not always can be effectively eradicated by the traditional approaches, there is an interest in alternative therapies until a vaccine be available. Honey is a food supplement with high carbohydrate content and antioxidant activity, as well as broad antimicrobial spectrum. After analyzing the physicochemical and in vitro antimicrobial properties of an Apis mellifera honey from the Atlantic forest of Alagoas / Brazil, the purpose of the present work was evaluate its in vivo effects against Helicobacter pylori in the gastric mucosa of Wistar rats. First, it was verified the success of inoculation/infection of the pathogen in the gastric mucosa of the rats, through the subsequent removal of their stomachs for histological analysis (hematoxylin and eosin stain and Giemsa stain). Then, four groups of animals were treated with sterilized distilled deionized water, the Apis mellifera honey, a combination of omeprazole, amoxicillin and clarithromycin, and an association of such medicines and honey (1:1). Except the control, all treatments were effective in combating infection, however, honey reduced the inflammatory process, whilst the antibiotics increase the number of eosinophils.