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Herbs & Supplements
Pewterwort
Scientific Name: Horsetail
Other Names: Bottle-brush, Dutch Rushes, Paddock-pipes, Scouring Rush, Shave-grass, Toadpipe
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Uses
Note: Horsetail may contain nicotine, which is more likely to cause potentially serious side effects in children than in adults. Therefore, horsetail is not recommended for individuals under the age of 18.
Horsetail contains chemicals that have a mild diuretic action--they promote the loss of water from the body. Taken orally for a few days, at most, horsetail may relieve mild swelling caused by excess water in the body. Historically, it has also been used to treat bladder, kidney, and urinary tract infections, but prescription diuretics ("water pills") and antibiotics are now much more effective for both of these uses.
More recently, horsetail has been studied for its possible usefulness in treating arthritis, osteoporosis, and other conditions of bones and cartilage. Horsetail contains relatively large amounts of silica and smaller amounts of calcium. Both silica and calcium are components of bones, joints, and connective tissues such as tendons and ligaments. It is believed that proteins in body tissues need silica to combine properly. Isolated results from early studies of animals show that horsetail may also have some pain-relieving and anti-inflammatory effects, which could add to its potential as a treatment for arthritis and related conditions. Some case reports relate the use of horsetail to lower incidences of osteoporosis. However, more research--including placebo-controlled studies in humans--needs to be conducted to determine whether or not horsetail may be safe and effective for bone and joint conditions.
Other chemicals in horsetail have an astringent effect that may lessen bleeding and speed healing of minor skin injuries such as cuts and scrapes when it is applied to the skin. An astringent helps shrink and tighten the top layers of skin or mucous membranes, thereby reducing secretions, relieving irritation, and improving tissue firmness. Oil distilled from horsetail has shown some anti-infective effects in laboratory studies. Because it may tighten skin tissue, horsetail is often included in nonprescription "anti-aging" skin care products.
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Note: The above information is not intended to replace the advice of your physician, pharmacist, or other healthcare professional. It is not meant to indicate that the use of the product is safe, appropriate, or effective for you.
In general, herbal products are not subject to review or approval by the U.S. Food and Drug Administration (FDA). They are not required to be standardized, meaning that the amounts of active ingredients or contaminants they contain may vary between brands or between different batches of the same brand. Not all of the risks, side effects, or interactions associated with the use of herbal products are known because few reliable studies of their use in humans have been done.
This information is provided for your education only. Please share this information with your healthcare provider and be sure that you talk to your doctor and pharmacist about all the prescription and non-prescription medicines you take before you begin to use any herbal product.
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