ABSTRACT
Mouth dissolving tablets are disintegrating and dissolve rapidly in the saliva without the need for water. Some tablets are designed to dissolve in saliva remarkably fast, within a few seconds, and are true fast-dissolving tablets. Others contain agents to enhance the rate of tablet disintegration in the oral cavity, and are more appropriately termed fast-disintegrating tablets, as they may take up to a minute to completely disintegrate. Oral delivery is currently the gold standard in the pharmaceutical industry where it is regarded as the safest, most convenient and most economical method of drug delivery having the highest patient compliance. Fast- or mouth dissolving tablets have been formulated for pediatric, geriatric, and bedridden patients and for active patients who are busy and traveling and may not have access to water.
ABSTRACT
Solid dosage forms are coated for a number of reasons, the most important of which is controlling the release profiles and bioavailability of the active ingredient. The amount of coating on the surface of a tablet is critical to the effectiveness of the oral dosage form. Tablets are usually coated in horizontal rotating pans with the coating sprayed onto the free surface of the tablet bed. Tablets must have a coating mass that lies within a prescribed range with very little inter- and intra-tablet coating variability. Using the Discrete Element Method (DEM), tablet coating can be simulated on the computer. Simulation data provide the position, velocity, and orientation of each tablet within the coater, allowing accurate measurements of the time and orientation that each tablet spends exposed to the coating spray.