Glycosides - the group of natural and synthetic derivatives of carbohydrates, the molecule of which consists of the balance of sugar - glikana and insipidus balance - aglycone. Depending on the nature of glikina (the remains of glucose, fructose, galactose , and so on) distinguish glucosides, fructose, galactoside, etc. are Some natural cures are used as medications - heart glycosides (see), antibiotics (for example, streptomycin); others are strong poisons (saponins, solanine).