Scale up is generally defined as the process of increasing batch size.
In process scale up a formula is transformed into a viable, robust
product by the development of a reliable and practical method of
manufacturing that effect the orderly transition from laboratory to
routine processing in a full-scale production facility. It must include
a close examination of the formula to determine its ability to withstand
batch-scale and process modification. So process scale up of Metformin
HCL tablet includes Trial Batches, Exhibit Batches and Validation Batch.
After these batches produce large scale up Metformin HCL Tablets. During
the scale up process controls are evaluated, valuated and finalized in
addition, appropriate records and report are issued to support good
manufacturing practices and to provide the historical development of the
production, formulation, process equipments train, and specification.