Formulation code

Mean Particle Size (µm) ± SD

Flow Properties

% Compressibility ± SD

Housner’s Ratio ± SD

Angle of Repose  ± SD

M41

344.70 ± 3.81

13.86 ± 0.26

1.17 ± 0.041

25.42 ± 0.67

M42

360.75 ± 3.30

14.30 ± 0.62

1.19 ± 0.007

24.42 ± 0.03

M43

382.50 ± 3.09

16.43 ± 0.23

1.24 ± 0.017

23.89 ± 0.55

M151

252.45 ± 4.63

16.25 ± 1.59

1.24 ± 0.028

22.83 ± 0.31

M152

253.80 ± 2.27

15.86 ± 2.92

1.21 ± 0.028

22.63 ± 0.60

M153

279.00 ± 1.27

17.78 ± 0.56

1.26 ± 0.07

29.88 ± 0.07

M1001

418.95± 8.81

17.92 ± 1.42

1.26 ± 0.016

29.46 ± 0.58

M1002

463.64 ± 3.68

19.36 ± 2.10

1.27 ± 0.017

30.23 ± 0.28

M1003

411.61 ± 4.86

21.55 ± 1.88

1.29 ± 0.041

30.48 ± 0.68

Pure Drug

---

23.78 ± 0.11

1.29 ± 0.007

30.23 ± 0.21

*Each observation is the mean ± S.D. of three determinations
Table 2: Micromeritic properties of floating microspheres.