SUMMARY
The chemical composition and pharmacological activity of the dry extract based on the herbal tea composed of black horehound (Ballota nigra) herb, white nettle (Lamium album) herb, wormwood (Artemisiae absinthii) herb in equal amounts have been studied. As a result of the chemical study of the main groups of biologically active substances in the herbal tea and the extract on its basis the presence of phenolic compounds such as derivatives of hydroxycinnamic acid, hydroxycoumarins, flavonoids and their quantitative content have been determined. In the research objects aglycons of flavonoids (luteolin, kaempferol, quercetin, apigenin) have been idenified. 70% ethanol provides a more complete extraction of phenolic compounds from the herbal tea: the content of hydroxycinnamic acid and flavonoids is higher than in the infusion of the herbal tea, it is more than 60% and 80% respectively; the total amount of phenolic compounds in the dry extract is greater than in the infusion – more than 10% (calculated with reference to a dry residue). The results of the pharmacological research suggest the presence of the sedative effect of the dry extract from the herbal tea in the dose of 400 mg/kg. The dry extract from the herbal tea exhibits the antihypoxic activity that exceeds the activity of Piracetam, thus proving its cerebroprotective action.