Table 1.

Solid contents in 5 mL PBS for the release experiment.

Specimen Code	N	Contents in 5 mL PBS (mg)
		Risedronate Sodium	Microsphere Bis-CR250	Microsphere Bis-CR500
Pure Risedronate 250	3	1.00	–	–
Pure Risedronate 500	3	1.92	–	–
Bis-CR250	3	–	400	–
Bis-CR500	3	–	–	400