The current invention discloses drug formulations of anti-infective mangrove extracts and their ability to block the reproductive capabilities of viruses, funguses, bacteria and tumors. Mangrove extracts can be ingested internally to prevent the proliferation of viruses, funguses, bacteria and tumors in humans and other animals； or the mangrove extracts can be applied directly to the skin, in the form of a disinfectant hand gel, to fight microbial infection.
