By Stacey Ahlrich, B.A.

Echinacea, one of the current top-selling herbs, is best known for its ability to enhance the immune system and protect the body. Since the 1930s, the Germans have been researching this herb and its many uses as an herbal remedy, including treating coughs, colds, influenza, upper respiratory infections, urinary tract infections, wounds, psoriasis, eczema and inflammatory skin conditions. This purple plant has three different types: Echinacea purpurea, pallida, and angustifolia (www.aidsinfonet.org). All three types are common for protection against colds, respiratory illnesses, and urinary tract infections.
Available in Many Forms
Echinacea is available for purchase in tablet form, consisting of powder from the root or leaf. An alcohol-based formula is available, as are pressed juices direct from the plant. Pressed juice is not as common due to availability and a reduction in shelf life. There is no evidence proving which form is most effective.
Using Echinacea
Research suggests Echinacea will provide best relief at the onset of cold or flu-like symptoms. If early warnings are missed, not to worry: Echinacea will still shorten the duration of a cold (Mccarthy, 1998). When consuming Echinacea, general recommendations suggest not exceeding 6 – 8 weeks of treatment (www.herbs.org). If deciding to consume longer than recommended, give yourself a one-week break every two months (Mccarthy, 1998). This will prevent the herb from losing its effectiveness. Currently, Echinacea has no known side effects or interactions with other medications.
Not for Everyone
Echinacea should not be recommended for people with immune system diseases such as HIV, tuberculosis, and multiple sclerosis. Because Echinacea protects the immune system by stimulating cell activity, research suggests that the herb could cause over-stimulation, increasing the potential for viruses to attack good cells, which could aggravate current conditions.
It appears that taking Echinacea may be helpful in shortening the duration of the dreaded winter cold in generally healthy individuals. It must be noted, however, that this herb has not been approved by the Federal Drug Administration, meaning no evidence is conclusive that Echinacea is a proven remedy.
For additional information please contact NIFS at 317.274.3432.