HPC Met granulates showed poor granulate flow due to a bowl-forming tendency during the tableting process. Therefore, a vibrator was used for enhancing granulate flow during the tableting process of HPC Met granulates. A previous report has shown similar results; using the MAG process, the compaction of HPC Met required low humidity to achieve adequate granulate flow [12]. Therefore, they concluded that use of the MAG process was difficult due to the moisture sensitivity of HPC Met granulates.