Research Article

Formulation and Evaluation of Galantamine Gel as Drug Reservoir in Transdermal Patch Delivery System

Table 4

Gels characteristics.

Formulation codeF1F2F3

Appearance

Transparency TranslucentTranslucentTranslucent

HomogeneityHighly homogeneous
(no crystals observed)
Highly homogeneous
(no crystals observed)
Highly homogeneous
(no crystals observed)

StabilityNo phase separationNo phase separationNo phase separation

Texture SmoothSmoothSmooth

pH7.80 ± 0.017.06 ± 0.017.45 ± 0.02

Drug content (%)93.79 ± 1.9296.67 ± 1.6095.72 ± 1.81