Basidiomycetes Polysaccharide, Fermented Genistein, Fermented Isoflavone, GCP, Genistein Polysaccharide, Génistéine du Polysaccharide Combiné, Génistéine Fermentée, Isoflavone Combined Polysaccharide, Isoflavone Fermentée, Polisacáridos Combinados de Genisteína, Polysaccharide de Génistéine, Polysaccharide des Basidiomycètes, Polysaccharide d'Isoflavone de Soja, Soy Isoflavone Polysaccharide.<br/><br/>


Overview Information

Genistein combined polysaccharide is a chemical that is made by fermenting soy with mushrooms called basidiomycetes.

Genistein combined polysaccharide is used for prostate cancer, bladder cancer, and breast cancer.

How does it work?

Genistein combined polysaccharide might work for some forms of cancer by decreasing certain hormones.


Uses & Effectiveness?

Insufficient Evidence for

  • Bladder cancer.
  • Breast cancer.
  • Prostate cancer.
  • Other conditions.
More evidence is needed to rate the effectiveness of genistein combined polysaccharide for these uses.

Side Effects

Side Effects & Safety

There isn't enough information to know if genistein combined polysaccharide is safe or what the side effects might be.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Not enough is known about the use of genistein combined polysaccharide during pregnancy and breast-feeding. Stay on the safe side and avoid use.

Hormone-sensitive condition such as breast cancer, uterine cancer, ovarian cancer, endometriosis, or uterine fibroids: Genistein combined polysaccharide might act like estrogen. If you have any condition that might be made worse by exposure to estrogen, don't use genistein combined polysaccharide.



We currently have no information for GENISTEIN COMBINED POLYSACCHARIDE Interactions.



The appropriate dose of genistein combined polysaccharide depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for genistein combined polysaccharide. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

View References


  • Barnes S, Kim H, Darley-Usmar V, et al. Beyond ERalpha and ERbeta: Estrogen receptor binding is only part of the isoflavone story. J Nutr 2000;130:656S-7S. View abstract.
  • Capodice JL, Cammack AS, McKiernan JM, Katz AE. Two case reports on the use of genistein combined polysaccharide (GCP) against bladder cancer recurrence. J Complement Integr Med 2011;8. View abstract.
  • Ghafar MA, Golliday E, Bingham J, et al. Regression of prostate cancer following administration of genistein combined polysaccharide (GCP), a nutritional supplement: A case report. J Altern Complement Med 2002;8:493-7. View abstract.
  • Yuan L, Wagatsuma C, Yoshida M, et al. Inhibition of human breast cancer growth by GCPTM (genistein combined polysaccharide) in xenogeneic athymic mice: involvement of genistein biotransformation by beta-glucuronidase from tumor tissues. Mutation Res 2003;523-524:55-62. View abstract.

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2018.