Fecha de publicación: 03/08/2011 Fuente: WIPO "royal jelly" The present invention provides an agent having anti- Helicobacter pylori activity that is effective for the treatment, prevention or improvement of diseases associated with Helicobacter pylori and contains as an active ingredient thereof an extract of a plant belonging to the Labiatae family. The agent having anti- Helicobacter pylori activity of the present invention has superior heat stability and allows the obtaining of elimination effects in a short period of time.