Cachets, or wafers, are made by pressing a mixture of flour, or starch and water between hot iron plates, and are used much in the same way as capsules for enclosing dry and powdered drugs, but are usually of much greater capacity. They have the advantage over capsules of being more readily dissolved and despite their comparatively large size are easily swallowed if previously dipped into water or if floated on a tablespoonful of water.