POLYION 963 is Cholestyramine Resin USP/EP. This is a pharmaceutical grade API for the treatment of high cholesterol level.
POLYION 954 is Sodium Polystyrene Sulfonate USP/EP, This is a pharmaceutical API product which is used treatment of a specific medical condition.
POLYION 945 is Calcium Polystyrene Sulphonate BP/JP , normally used to reduce serum levels of potassium