Table 13.

Results of stability study of optimized batch HB1 and HB2.

Tested after time	HB1		HB2
	Appearance	Drug content (%) (Mean ± S.D.)	Appearance	Drug content (%) (mean ± S.D.)
0 month	No change	100.18% ± 2.10	No change	98.7% ± 1.39
1 month	No change	99.09% ± 0.63	No change	98.97% ± 0.74
2 months	No change	98.72% ± 1.30	No change	99.34% ± 1.12
3 months	No change	98.12% ± 0.98	No change	99.87% ± 1.89