In a method for the production of tablets from plant extracts such as St. John's wort extract with an extract content of 80%, the extract treated on a conveyor dryer is compacted after adding 1% of silicon dioxide, and a granulate with a defined particle size distribution and therefore a defined surface area is produced from the compactate. To achieve a high rate of decomposition and active agent release with a low adjuvant content and high extract content, a combination of blasting agents including sodium hydrogencarbonate and two other, lower-dosed blasting agents such as croscarmellose sodium and sodium carboxymethyl starch--among other adjuvants--is added. The method results in a tablet suitable for oral administration containing 900 mg of St. John's wort extract.