Abstract: Fast-dissolving pharmaceutical tablets comprising mannose are described. The mannose component imparts both structure-forming and fast-dissolution properties to the tablets. Granulation of tablet components and humidification forms strong liquid bridges at the surface interfaces of mannose particles, which leads to strengthened tablets. The mannose particles, however, remain porous following compression so that contact with moisture, e.g., saliva in the mouth, leads rapidly to tablet disintegration and dissolution.