Formulation Days Drug content (%) % Drug release (After 6 hrs)
  F1 0 95.8 82.1
15 96.0 82.0
30 95.9 81.8
45 94.5 81.5
  F3 0 95.4 93.2
15 95.8 93.1
30 95.6 92.8
45 94.4 92.9
  F5 0 97.2 96.3
15 96.9 96.1
30 95.1 95.8
45 93.9 95.5
  F7 0 97.5 96.8
15 96.4 96.5
30 96.3 95.7
45 95.9 95.5
F9 0 98.4 99.2
15 98.3 98.8
30 97.8 98.5
45 97.7 98.2
Table 7: Stability studies data of different formulations.