Especially in Germany, large use is made of preparations under this name. As sold in this country, some of them are too sweet to agree with the stomach. The best is Johann Hoff's "Malz-Extract;" made in Berlin, and imported in short thick bottles. The use of this extract is as a tonic, particularly when digestion is weak. It may be taken at meals, a quarter of a tumblerful at once. When taken at bed-time, it is promotive of sleep.