An extract of Scutellaria lateriflora L. having a content of flavonoids, calculated as the sum of baicalein, scutellarin, dihydrobaicalin, ikonnikoswide I, lateriflorin, baicalein, lateriflorein and wogonin, of at least 18% by weight. A method of obtaining such an extract includes combining dried Scutellaria lateriflora L. plant material with a solvent.