Rapid and accurate determination of the formulation orientation of
multi-layer capsule-shaped tablets with respect to different internal
formulation layers proximate to the opposite narrow and rounded ends of
the tablets is required. By including an appropriate color scheme in
multi-layer osmotic tablets, detection of the formulation orientation is
achieved by detecting the color at a spot location on a side of the
tablet corresponding to one or another formulation layer or to one or
another interface of two formulation layers depending on the formulation
orientation of the tablet.