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1 What are the active ingredients of tongkat ali

2 Tongkat ali and testosterone

3 Testosterone levels more than doubled with tongkat ali

4 What are the active ingredients of tongkat ali

5 Bromocriptine not just for Parkinson's disease

6 Can yohimbine be combined with Viagra, and what are the (side) effects?

7 Increased semen volume with tongkat ali

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1 Leonardus B. S. Kardono , Cindy K. Angerhofer , Soefjan Tsauri , Kosasih Padmawinata , John M. Pezzuto , A. Douglas Kinghorn, Cytotoxic and Antimalarial Constituents of the Roots of Eurycoma longifolia, Journal of Natural Products Vol. 54, No 5, pp. 1360-1367, Sep-Oct 1991.

2 Suratwadee Jiwajinda, Vilai Santisopasri, Akira Murakami, Masanori Kawanaka, Hiromu Kawanaka, Monique Gasquet, Riad Eilas, Guy Balansard, Hajime Ohigashi, In vitro anti-tumor promoting and anti-parasitic activities of the quassinoids from Eurycoma longifolia, a medicinal plant in Southeast Asia, Science Direct, Journal of Ethnopharmacology Volume 82, Issue 1, 1 September 2002, Pages 55-58.

3 Nurhanan, M. Y., Azimahtol, H. L. P., Azizol, A. K., Cytotoxicity studies of Eurycoma longifolia extracts against a panel of human cancer cell lines., Forest Research Institute Malaysia (FRIM), Towards modernisation of research and technology in herbal industries. Proceedings of the Seminar on Medicinal and Aromatic Plants, 24-25 July 2001 2002 pp. 124-127.

4 H.H. Ang, K.L. Chan, E.K. Gan, and K.H. Yuen, Enhancement of Sexual Motivation in Sexually Naive Male Mice by Eurycoma longifolia, Informa Healthcare, 1997, Vol. 35, No. 2 , Pages 144-146.

5 Sobri Hussein; Rusli Ibrahim; Kiong LingPick [Kiong, L. P. A.], A summary of reported chemical constituents and medicinal uses of Eurycoma longifolia., Total Health Concept Sdn. Bhd., Journal of Tropical Medicinal Plants 2007 Vol. 8 No. 1 pp. 103-110.