Astragalus is a small perennial plant, native to parts of China, Korea and Mongolia. The curative properties of astralagus are in the root of the plant, a flexible finger-like tuber filled with wooly fibers. For medicinal purposes, the dried astragalus root is available in powder form, teas, tinctures and capsules. Always consult with your primary care physician before taking astragalus or any herbal supplement.
History
The root of the astragalus plant has been in use as a preventative tonic for more than 2,000 years. Historically the herb was used to treat colds and respiratory infections, and was prescribed as a preventative for cancer, heart conditions and diseases of the kidney and liver, according to the American Cancer Society. As one of the most popular herbs in Chinese medicine, 21st century herbalists continue to value astragalus as a treatment for hepatitis.
Benefits
Astragalus has antibacterial and anti-inflammatory properties and is an effective preventative for colds and other viral infections, according to the University of Maryland Medical Center. Preliminary studies show astragalus helps to speed the recovery of patients following chemotherapy and radiation treatments. Both the American Cancer Society and UMMC state additional studies are necessary to confirm recent Chinese reports that astragalus improves heart function in heart disease patients.
Theories/Speculation
Herbal and natural health care practitioners frequently prescribe astragalus to enhance immune system function. While preliminary studies suggest it may help the immune system to fight infection, evidence to support the claim remains limited. Because astragalus is prescribed in combination with other herbs, it is difficult to isolate its individual therapeutic affect. Studies to determine how astragalus affects the immune system are ongoing.
Side Effects/Complications
Astragalus is known to interact with other herbs and many prescription medicines. Because some claim astragalus lowers blood pressure, caution is advised when taking blood pressure medication. The anti-viral and immune enhancing properties of astragalus may also counteract the effects of immunosuppressant drugs such as the steroid prednisone and interferon. People who take water pills should talk to their doctor before taking astragalus, as the herb's natural diuretic action can increase the effects of their prescription medication.
Considerations
Although the healing properties of herbs have been recognized for thousands of years, until modern times plants were harvested from their natural environment and prepared for immediate use. People who use herbal remedies on a regular basis may assume all supplements are of equal value. In fact, the purity and efficacy of supplements may vary, and it is important to read labels carefully and buy products from a reputable manufacturer. While you should tell your doctor if you are taking any herbal supplements, if you use prescription drugs, it is a good idea to provide your pharmacist with the same information.
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