Glycolys, sodium carboxymethyl starch, is a very well known and widely used superdisintegrant for all solid oral dosage forms. It is potato starch based and has the capacity to swell upto 280 - 320 times its original granule volume. Glycolys is sparingly soluble in ethanol and practically insoluble in water. It is a versatile excipient suitable for wet/dry granulation as well as direct compression and can be incorporated in intra and/or extra-granular modes.