The long tap roots of astragalus have been used in China for thousands of years as immune stimulant for treating various diseases. In modern Chinese medicine and culture, astragalus plays an important role in boosting the effect of conventional immune therapy for some cancers, including prostate cancer. Astragalus promotes the functions of other herbs, so is traditionally used in combination with other herbs, such as echinacea and Asian ginseng.
Plant Description
Astragalus is an Asian legume, belonging to the family Fabaceae. It is a perennial plant that grows to a height of 16 to 36 inches and is originally from northeastern regions of China, Mongolia and Korea. The dried root of astragalus is used in herbal medicines and is most often used in the forms of liquid extract, herbal tea, capsules and tablets.
Astragalus Composition
Astragalus root rich in numerous compounds -- including polysaccharides, flavonoids, amino acids, folic acids -- trace elements, such as iron, zinc and selenium, and a small amount of alkaloids, including choline and betaine. Each of these phytocompounds may produce the medicinal effects linked to astragalus.
Astragalus and Cancer
The polysaccharides and flavonoids found in Astragalus root are effective cancer inhibitors and may reduce the size and aggressiveness of prostate cancer tumors, according to the Metropolitan State College of Denver. Astragalus may also improve survival in people who have cancer by supporting the body's immune system and cell-destroying ability. It is commonly applied to enhance the effectiveness of platinum-based chemotherapy drugs, particularly those are used in treating prostate cancer.
Precautions
Astragalus is generally a safe herb and has no harmful effects when used at recommended doses. It also does not interact with other herbs, medications and dietary supplements. However, people who are using immunosuppressants must not consume astragalus without talking to a doctor because it may suppress the effects of corticosteroids and cyclosporine. These medications are used in organ transplantation.
