Stability Drug 1mg 2 mg 3 mg 4 mg   Batch G1A G1B G1C     G4A G4B G4C Long term   0. 3. and 6 month 0. 3. and 6 month 0. 3. and 6 month x x 0. 3. and 6 month 0. 3. and 6 month 0. 3. and 6 month Accelerated   0 and 6 month 0 and 6 month 0 and 6 month x x 0 and 6 month 0 and 6 month 0 and 6 month

Table 1: Applied bracketing design.