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HORSETAIL ( FIELD HORSTAIL) - Equisetum arvense

Usable part of the herb - slalks from field horsetail - Herba Equiseti.

Family Equisetaceae

Description. Field horsetail is a perennial herbaceous plant with long underground rhizome. Every spring grows without chlorophyll, brown, unbranched stem, on top of which is sporulated short spikelet. After scattering spores sporulated stem died but on the same rhizome develop summer stems - green, high to 30-50 cm, branched. Stems and branches they are longitudinally grooved, hard, rough, tough and hollow. In their nodes are leaves - scaly, 6-12 in number, fused in sleeves.

Distribution. In Bulgaria field horsetail is found in moist and shady places along the rivers, in the meadows, marshes and along embankments in foothill areas with an altitude of 1600 meters.

Drugs. Salks of field horsetail - Herba Equiseti.

The overhead fraction was collected during the summer (May-August), the stems are cut with their branches of 20 cm from the top. Dried in the shade or in a drying oven at temperatures up to 40 ° C. The dried drug is brittle, green and slightly bitter taste. It has no smell. Field horsetail stored in a shady, well-ventilated, dry place. Allowed to contain up to 12% moisture. When picking field horsetail should not be mixed with marsh horsetail or other plant species.

Chemical composition. Field horsetail contains saponin ekvizetonin, carotene, Vitamin C, a large amount of silicic acid (alkali and alkaline earth silicates, - soluble first and the second - are insoluble in water), flavonoids edvizetrin, luteolin and izokvertsitin, bitter substances, resinous substances, alkaloids paustrin, nicotine and ekvizetin, fats, aconitic acid, ekvizetova acid, oxalic acid, tannins, proteins, gums, and other.

Action and use. The high content of silicates and rich composition of herb define its action and the multiple use. Silicic acid, dissolving in water, it forms salts readily resorbable in the gastrointestinal channel. These salts are a necessary component of life activity of the various systems, play an important role in the metabolism and functional activity of the connective tissue, mucous membranes, strengthen the walls of blood vessels. They are particularly important for the development of bone tissue. In the urine of silicon compounds are protective colloids which obstruct crystallization of the mineral components, thereby preventing the formation of kidney stones.

Herb and preparations of it have strong diuretic effect. Cause enhanced activity of the heart and strengthen the blood circulation, in which the kidneys work urinary improves. The antimicrobial and anti-inflammatory action of the field horsetail is due to the 5-glycoside-luteolin. This determines its use in inflammation of the urinary tract, kidney stones and bladder, edema of cardiac or renal origin (in acute nephritis are contraindicated as highly irritating to the kidneys). It boosts metabolism and successfully applied in diseases of the endocrine glands, especially during the climax, when the legs swelling of disturbed metabolism, etc.). Strengthen the resilience of the connective tissue, which is due to their use in rheumatic diseases, chronic arthritis, osteoarthritis, pulmonary and bone tuberculosis disease processes of the skin and skin formations (hair loss), bone fractures and others. It underlined hemostatic effect of field horsetail in haemoptysis, uterine bleeding and hemorrhoids. A beneficial effect and in asthma. The herb composition of participating in antiasthmatic and diuretic teas. It is anti-decay effect. It is experimentally proved that the field horsetail has anti toxic action by helping to disposal of lead from the body.

Folk medicine recommends field horsetail more and albumin, sciatica, gout, hematuria, blood pressure, stomach pain, urinary incontinence, atherosclerosis, pulmonary hemorrhage, varicose veins, eczema, vaginal discharge, difficult to heal wounds (dust from crushed field horsetail), inflammation of throat (gargle) and others.

Usage. Field horsetail is applied internally as a decoction. Two tablespoons of crushed stalks of field horsetail pour 400 ml of boiling water. Boil 3 minutes and allowed to soak for 1 hour. By strain the decoction is taken three times daily 120 ml after meals. In the treatment of uterine and hemorrhoidal bleeding, the dose may be increased up to 2 times. Decoction for frictions hair (morning and evening) is prepared in the same proportion, but boil for 10 minutes. Field horsetail applied externally and in the form of poultices of crushed fresh shoots (eczema, varicose veins, bone tuberculosis) or decoction baths and rinses (poorly healing wounds, whites and others.).