Lippia alba (Mill) N.E. Brown is a medicinal plant known in Colombia as prontoalivio (= fast relief). It is used for the treatment of multiple gastro-intestinal ailments. The essential oil, the aqueous and alcoholic extracts obtained from the plant have demonstrated antibacterial, antiviral, anti-parasitic and antimycotic power. In the current in vitro study of the aqueous extracts from Lippia alba leaves against three isolated Helicobacter pylori cultures, it was determined that there was an antibacterial effect. There are needed additional studies that allow to establish the potential clinical use of the aqueous extracts in combination with the antibiotic treatment.