Figure 2.

Quantitative analysis of the axial gel layer thickness over time of film-coated tablets, as calculated using a high-speed recording camera with macro lens and imaging software for 60 at 4 s intervals. Uncoated tablets commenced disintegration and did not swell when immersed in water. Graph (A) represents commercial grade film coats, gelatin formulations are shown in graph (B), λ-carrageenan shown in graph (C), gelatin: λ-carrageenan combination formulations are represented in graph (D).