Background: Binahong (Anredera cordifolia) is a herbal plant endemic in Indonesia. Binahong is predicted to have antibacterial activity. This study aims to determine the effectiveness of binahong extract as an antibacterial against Pseudomonas aeruginosa bacteria. Methods: This experimental research tested binahong extract for inhibiting Pseudomonas aeruginosa bacteria by using the Kirby-Bauer …