Effects of drugs of plant origin is determined contained in various parts of the plant active substances: alkaloids, glycosides, tannins, essential oils and others. It is impossible to tell that vegetative preparations are replaced completely with synthetic medicines, but presently a phytotherapy (treatment by herbs) endures the rebirth.

Returning to the experience of traditional medicine, in this case fitoterpii, people tend to avoid the treatment of many side-effects inherent to antibiotics and other synthetic drugs. During the existence of human experience with herbal remedies has gained considerable indeed and, if correctly applied herbal preparations have a more mild and less toxic than synthetic and are not addictive and allergies. Moreover, the plants not only failed to inhibit the body’s defenses, but rather are active against many strains of microorganisms have acquired resistance to antibiotics, and can enhance human immunity, thus helping him cope with the disease.