Extrusion-Spheronization is the traditional method for manufacturing pellets

Extrusion-Spheronization is the traditional method for manufacturing pellets. Agglomeration through the extrusion and spheronization process has been used for many years. In fact, this process dates back to 1950’s when the first pelletized dosages were introduced to the market. These pelletized dosages gain popularity quickly due to their noticeable advantages. For example, it is easier to fill the capsule, enhance the drug dissolution, coat the pill, and control the delivery of ingested drug. These pills can be formed through a wide variety of techniques such as spray drying, spray congealing, hot-melt extrusion, and spheronization of low melting materials.

The figure above shows the classification of pelletization techniques. The extrusion-spheronization process is listed under compactation. Compactation is

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