Tongkat Ali is a common name often used by Malaysians to describe the plant ''eurycoma longifolia''. This plant is native to the regions of Indo-China, Peninsular Malaysia, Borneo and Sumatra. It can grow to a height of 10 meters. Tongkat Ali has always been claimed as the "King" of Malay traditional medicine. It is a plant popularly known for its aphrodisiac property for men. However, it is widely used traditionally for its anti-malarial property due to the presence of the quinidine compounds. Preliminary research studies on other chemical substances found in Tongkat Ali indicated some properties for the treatment of fever, cuts, diabetes, headaches, skin diseases, syphilis, hypertension. In addition, it has also shown some "Viagra Effects" on some males. Scientific reports on its anti-cancer properties are not conclusive.