MAG is a simple process compared to other granulation processes. In general wet granulation, moisture control is necessary in the drying process. Air flow, temperature and other manufacturing conditions should be evaluated to determine the critical process parameter (CPP) of the drying process. And because MAG omits the drying process, it is beneficial for drugs which are less heat-resistant. Met is shown to be highly susceptible to moisture and will change its flow and form a large agglomerate depending on the moisture content. Therefore, the moisture content of Met granules should be controlled during the wet granulation and drying process. On the other hand, because MAG requires a significantly small volume of granulation liquid, the drying process is omitted. Moisture content can be easily controlled by adjusting the amount of liquid added, which could reduce CPP. This manufacturing method may be beneficial to the Met granulation process.