PC-SPES

Definition

PC-SPES is an herbal mixture of eight botanical compounds adapted from traditional Chinese medicine that is used to treat prostate cancer, particularly the forms that do not respond to anti-androgen (hormone) therapy.

Purpose

PC-SPES is an herbal remedy that has been marketed as an over-the-counter drug for the treatment of prostate cancer. Anecdotal evidence of greatly reduced prostate-specific antigen (PSA) levels in patients taking this preparation prompted more formal testing of its effect. Laboratory studies show that PC-SPES has the ability to slow growth of both hormone-sensitive and hormone-insensitive prostate cancer cell lines in the test tube. Studies done with mice that have been...

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