Table 1.

Density and swell volume determination

Parameters	VS-501	Sevelamer*
Density of compressed powder determined by helium pycnometer (g/cm3)	1.91	1.27
Swell volume in simulated gastric fluid at 37°C for 20–180 min (cm3/0.1 g)	0.2	4.0

^*Sevelamer carbonate was used in the study.