Table 1.

Effects of Inhibitors on stone formation

INHIBITOR	Nucleation Inhibitor	Growth Inhibitor	Aggregation inhibitor	Attachment inhibitor
Citrate	I	I	I	I
Pyrophosphate	I	I	I/NI	ND
Phytate	*	I	ND	ND
Magnesium	I	I	I	I (high conc.)
Osteopontin	I	I	I/NI	I
THP	NI	NI	I/NI	I
UPF- 1	*	I	I	I
Bikunin	I	I	I	I

^*property was not explicitly tested but is likely to be present, as nucleation appears to always track with growth inhibition; I, inhibitory activity demonstrated; NI, inhibitory activity not demonstrated, ND, Inhibitory activity not determined; I/NI, both inhibitory and promoter activity noted