Heartleaf extract (Houttuynia cordata extract;pig thigh extract). The main antibiotic ingredient is decanoylacetaldehyde (an essential oil). The essential oil of yu xing cao can inhibit HIV-1 (AIDS-virus) in vitro . Its potassium salt and can enhance the function of capillaries, and can improve blood flow and promote urination.Houttuynia cordata have been used for healing wounds,Anti-bacterial, anti-inflammatory.The medicinal effect derives from aldehydes and ketones that are the source of its foul smell. Houttuynia cordata is proven to have antibacterial effects against Trichophyton, staphylococci, gonococci and tubercule bacilli.The whole plant is dried and brewed, and used for treatments such as diuretics, antipyretics, pus removal, detoxification, swelling, hypertension, pulmonary tuberculosis, constipation, colds, and Para nasal sinusitis.