Compilation of herbal plants (description, geographical distribution, taxonomy, line drawings), biodiversity and herbarium.

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Research & Publication

Description of herbal and T&CM research, searchable publication and process from medicinal plant discovery to clinical trial in producing a high-quality registered herbal drug.

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Traditional & Complementary Medicine (T&CM)


Definition and description of therapies, policy, training and education, research in the practise of (T&CM) and integrated medicine system.           

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Forthcoming Events

International Conference on Traditional Medicine and Phytochemistry 2021

From Mon, 12. July 2021 Until Wed, 14. July 2021

Asian Symposium on Medicinal Plants and Spices XVII (2020)

From Tue, 17. August 2021 Until Thu, 19. August 2021

14th National Conference for Clinical Research (NCCR 2021)

From Tue, 17. August 2021 Until Fri, 20. August 2021

8th World Congress on Natural Products, Medicinal Plants and Traditional Medicine

From Mon, 18. October 2021 Until Wed, 20. October 2021

International Conference on Traditional Medicine and Holistic Healing 2021 (TMHH2021)

From Thu, 28. October 2021 Until Sat, 30. October 2021

UsToo PC-SPES surveys: review of studies and update of previous survey results


Porterfield H




Mol Urol


In 1997, we resolved to survey UsToo members and other men known at that time to be taking PC-SPES, a Chinese herb combination that contains eight herbs: chrysanthemum, dyers woad, licorice, reishi, san-qi ginseng, rabdosia, saw palmetto, and baikal skullcap. The survey showed positive results, with respondents experiencing a decline in serum prostate specific antigen (PSA), most to the undetectable range. Of these patients, 88% maintained a low PSA concentration, whereas 12% had a rise from nadir. These results made it obvious that we should obtain follow-up reports from the respondents. We therefore conducted a second survey, this time finding 93% of the respondents with positive results and only 7% reporting a rise in PSA after the initial lowering with PC-SPES. Even though there are some side effects, a great majority of men are realizing good PSA control while taking the capsules, and some of the respondents are now into their fourth year of PC-SPES use. Currently, several institutions are investigating the biology of this Chinese herb combination. Although there is some estrogenic effect, there are other potential mechanisms of action to enable this product to control PSA, not only in newly diagnosed cancer, but also in longer-term use.

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Consumer Data

Consumer data including medicinal herbs, dietary supplement monographs, health condition monographs and interactions and depletions.                                    

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Professional Data

Professional data organized into medicinal herbs, dietary supplement monographs, health condition monographs, T&CM herbs, formulas, health conditions, interactions and depletions.

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International Data

We offer International linkages to provide extensive content pertaining to many facets of T&CM as well as Integrated Medicine. Please register for access.    

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