Research Article
Formulation of Bilayer Benzydamine HCl Patch Targeted For Gingivitis
Table 3
Mechanical evaluation of double layer patches.
| | Batches | Tensile strength (dynes/cm2) | Elongation (%) | Weight (mg) | Folding endurance | Drug content (%) | | Layer separation | Yield number of folds |
| | DL1 | | | 105 | Yes | >120 | 94.21 | | DL2 | | | 108 | Yes | >125 | 94.70 | | DL3 | | | 110 | Yes | >130 | 95.01 | | DL4 | | | 106 | No | >125 | 95.32 | | DL5 | | | 109 | No | >135 | 94.65 | | DL6 | | | 112 | No | >145 | 96.2 | | DL7 | | | 111 | No | >150 | 95.11 | | DL8 | | | 114 | No | >150 | 96.98 | | DL9 | | | 115 | No | >160 | 98.5 |
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