ECHINACEA FACTS
With cold and flu season right around the corner, you’ll be hearing a lot about herbal substances that may prevent you and your family from being miserable this flu season. Echinacea is one of the most popular herbal treatments to help prevent cold/flu symptoms. Don’t you think it’s about time to find out the whole truth?
This report provides basic information about the herb echinacea--common names, uses, potential side effects, and resources for more information. There are nine known species of echinacea, all of which are native to the United States and southern Canada. The most commonly used, Echinacea purpurea, is believed to be the most potent.
Common Names--echinacea, purple coneflower, coneflower, American coneflower
Latin Names--Echinacea purpurea, Echinacea angustifolia, Echinacea pallida
Echinacea species are flowering herbs native to North America. Echinacea is often used by consumers for the treatment and prevention of upper respiratory infections. It is one of the most commonly used herbs in the United States.
What It Is Used For?
Echinacea has traditionally been used to treat or prevent colds, flu, and other infections. Echinacea is believed to stimulate the immune system to help fight infections. Less commonly, echinacea has been used for wounds and skin problems, such as acne or boils.
How It Is Used?
The aboveground parts of the plant and roots of echinacea are used fresh or dried to make teas, squeezed (expressed) juice, extracts, or preparations for external use.
What the Science Says.
Studies indicate that echinacea does not appear to prevent colds or other infections. Studies to date have not proven that echinacea shortens the course of colds or flu. For example, two NCCAM-funded studies did not find a benefit from echinacea, either as Echinacea purpurea fresh-pressed juice for treating colds in children, or as an unrefined mixture of Echinacea angustifolia root and Echinacea purpurea root and herb in adults. Other studies have shown that echinacea may be beneficial in treating upper respiratory infections. NCCAM is continuing to support the study of echinacea for the treatment of upper respiratory infections.
Side Effects and Cautions.
When taken by mouth, echinacea usually does not cause side effects. However, some people experience allergic reactions, including rashes, increased asthma, and anaphylaxis (a life-threatening allergic reaction). In clinical trials, gastrointestinal side effects were most common. People are more likely to experience allergic reactions to echinacea if they are allergic to related plants in the daisy family, which includes ragweed, chrysanthemums, marigolds, and daisies. Also, people with asthma or atopy (a genetic tendency toward allergic reactions) may be more likely to have an allergic reaction when taking echinacea. It is important to inform your health care providers about any herb or dietary supplement you are using, including echinacea. This helps to ensure safe and coordinated care.
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ECHINACEA FACTS
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