TABLE 3.
Physicochemical properties of the prepared water-soluble films.
| Formulae | Theoretical weight (mg/4 cm2) | Weight (mg/4 cm2) (±SD) | Folding endurance | Thickness (mm) | pH | Theoretical drug content (±SD) | Drug content (mg/4 cm2) (±SD) |
| F1 | 37.17 | 32 (1.82) | >200 | 0.220 | 6.82 | 0.000 | 0.000 |
| F2 | 40.9 | 33 (1.51) | >200 | 0.250 | 6.74 | 0.000 | 0.000 |
| F3 | 44.72 | 34 (1.85) | >200 | 0.255 | 6.72 | 0.000 | 0.000 |
| F4 | 48.49 | 38 (1.67) | >200 | 0.260 | 6.72 | 0.000 | 0.000 |
| F5 | 52.27 | 44 (1.79) | >200 | 0.260 | 6.69 | 0.000 | 0.000 |
| F6 | 56.04 | 48 (1.69) | >200 | 0.260 | 6.68 | 0.000 | 0.000 |
| F7 | 41.70 | 37 (0.99) | >200 | 0.255 | 6.43 | 0.76 | 0.69 (0.01) |
| F8 | 46.70 | 40 (1.79) | >200 | 0.240 | 6.45 | 1.510 | 1.44 (0.03) |
| F9 | 50.76 | 43 (1.43) | >200 | 0.245 | 6.48 | 2.265 | 1.12 (0.03) |
| F10 | 55.29 | 51 (1.33) | >200 | 0.240 | 6.52 | 3.020 | 2.81 (0.05) |
| F11 | 59.82 | 55 (1.89) | >200 | 0.240 | 6.54 | 3.774 | 3.30 (0.06) |